const regex = new RegExp("\u6b63\u898f\u8868\u73fe", "\u30aa\u30d7\u30b7\u30e7\u30f3");<\/code><\/pre><\/div>\n\n\n\n\u2461\u6b63\u898f\u8868\u73fe\u30ea\u30c6\u30e9\u30eb\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5<\/h4>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n const regex = \/\u6b63\u898f\u8868\u73fe\/\u30aa\u30d7\u30b7\u30e7\u30f3;<\/code><\/pre><\/div>\n\n\n\n\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3068\u30ea\u30c6\u30e9\u30eb\u3067\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u304c\u7570\u306a\u308a\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u306f\u5b9f\u884c\u6642\u306b\u3001\u30ea\u30c6\u30e9\u30eb\u306f JavaScript \u304c\u30ed\u30fc\u30c9\u3055\u308c\u308b\u969b\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u540c\u6642\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u307e\u3059\u3002
\u4e0a\u8a18\u306e\u7406\u7531\u304b\u3089\u3001\u30ea\u30c6\u30e9\u30eb\u3092\u4f7f\u7528\u3057\u305f\u6b63\u898f\u8868\u73fe\u306f\u5024\u3092\u52d5\u7684\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u80fd\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u65e2\u306b\u6c7a\u307e\u3063\u3066\u3044\u308b\u30d1\u30bf\u30fc\u30f3\u306e\u6b63\u898f\u8868\u73fe\u306b\u3057\u304b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u305d\u306e\u305f\u3081\u3001\u30d1\u30bf\u30fc\u30f3\u304c\u52d5\u7684\u306b\u5909\u5316\u3057\u305f\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u5165\u529b\u5024\u306a\u3069\u304b\u3089\u30d1\u30bf\u30fc\u30f3\u3092\u53d6\u5f97\u3059\u308b\u5834\u5408\u306b\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30fc\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002
\u4e00\u65b9\u3067\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u9762\u3067\u306f\u30ea\u30c6\u30e9\u30eb\u306e\u65b9\u306b\u8ecd\u914d\u304c\u4e0a\u304c\u308b\u305f\u3081\u3001\u6c7a\u307e\u3063\u305f\u30d1\u30bf\u30fc\u30f3\u306b\u5bfe\u3057\u3066\u306f\u30ea\u30c6\u30e9\u30eb\u3092\u4f7f\u7528\u3059\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n\n\n\n
\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u3092\u7a2e\u985e\u5225\u3067\u899a\u3048\u308b<\/h2>\n\n\n\n
\u30e1\u30bf\u6587\u5b57\u3092\u4f7f\u7528\u3057\u3066\u8a18\u8ff0\u3059\u308b\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u5927\u307e\u304b\u306b\u5206\u3051\u3066\u4ee5\u4e0b\u306e\uff14\u3064\u306e\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\n- \u4e00\u81f4\u6761\u4ef6\u3068\u3059\u308b\u6587\u5b57\u306e\u30ea\u30b9\u30c8\u3001\u3082\u3057\u304f\u306f\u7bc4\u56f2\u3092\u8868\u73fe\u3059\u308b\u30d1\u30bf\u30fc\u30f3\uff08\u6587\u5b57\u30af\u30e9\u30b9\uff09<\/li>\n\n\n\n
- \u6587\u5b57\u306e\u7e70\u308a\u8fd4\u3057\u56de\u6570\u3092\u8868\u73fe\u3059\u308b\u30d1\u30bf\u30fc\u30f3\uff08\u91cf\u6307\u5b9a\u5b50\uff09<\/li>\n\n\n\n
- \u6587\u5b57\u4f4d\u7f6e\u3092\u8868\u73fe\u3059\u308b\u30d1\u30bf\u30fc\u30f3\uff08\u30a2\u30f3\u30ab\u30fc\uff09<\/li>\n\n\n\n
- \u65e2\u5b58\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u306e\u6761\u4ef6\u30ea\u30b9\u30c8\u3092\u8868\u73fe\u3059\u308b\u30d1\u30bf\u30fc\u30f3\uff08\u6587\u5b57\u30af\u30e9\u30b9\u30a8\u30b9\u30b1\u30fc\u30d7\uff09<\/li>\n<\/ul>\n\n\n\n
\u305d\u308c\u305e\u308c\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u3064\u3044\u3066\u3001\u9806\u306b\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u6587\u5b57\u30ea\u30b9\u30c8\u3084\u6587\u5b57\u7bc4\u56f2\u3092\u8868\u3059\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n
1\u3064\u76ee\u306f\u3001\u6587\u5b57\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u8868\u73fe\u3059\u308b\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002
[ ] \u306e\u4e2d\u306b\u8a18\u8ff0\u3057\u305f\u6587\u5b57\u306e\u30ea\u30b9\u30c8\u3001\u3082\u3057\u304f\u306f\u6587\u5b57\u306e\u7bc4\u56f2\u3092\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b \u300c [abc] \u300d\u3068\u8a18\u8ff0\u3057\u305f\u5834\u5408\u3001a \u304b b \u304b c \u306e\u3044\u305a\u308c\u304b\u306b\u8a72\u5f53\u3059\u308b1\u6587\u5b57\u3092\u5bfe\u8c61\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n\/\/ a, b, c \u306e\u3044\u305a\u308c\u304b\uff11\u6587\u5b57\nconst reg = \/[abc]\/;<\/code><\/pre><\/div>\n\n\n\n\u307e\u305f\u3001[^\u2026] \u3068\u3044\u3063\u305f\u5f62\u5f0f\u3067 [ ] \u306e\u4e2d\u306b ^ \u3092\u4ed8\u3051\u3066\u8a18\u8ff0\u3059\u308b\u3068\u3001\u53cd\u5bfe\u306b\u6307\u5b9a\u3057\u305f\u7bc4\u56f2\u4ee5\u5916\u306e\u6587\u5b57\u304c\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n\/\/ \u5c0f\u6587\u5b57\u306e a~z \u306e\u3044\u305a\u308c\u304b\uff11\u6587\u5b57\nconst regex = \/[^abc]\/;<\/code><\/pre><\/div>\n\n\n\n\u5358\u4e00\u3054\u3068\u306e\u6587\u5b57\u306e\u6307\u5b9a\u3067\u306a\u304f\u3001\u4e00\u5b9a\u7bc4\u56f2\u3092\u307e\u3068\u3081\u3066\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u958b\u59cb\u5024\u3068\u7d42\u4e86\u5024\u3092 – \u3067\u533a\u5207\u3063\u3066\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n\/\/ \u5c0f\u6587\u5b57\u306e a~z \u306e\u3044\u305a\u308c\u304b\uff11\u6587\u5b57\nconst reg = \/[a-z]\/;\n\n\/\/ 0~9 \u306e\u3044\u305a\u308c\u304b\uff11\u6587\u5b57\nconst reg = \/[0-9]\/;<\/code><\/pre><\/div>\n\n\n\n\u6587\u5b57\u306e\u7e70\u308a\u8fd4\u3057\u3092\u8868\u3059\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n
\u7279\u5b9a\u306e\u6587\u5b57\u306e\u7e70\u308a\u8fd4\u3057\u3092\u8868\u73fe\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u91cf\u6307\u5b9a\u5b50\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002
\u6b63\u898f\u8868\u73fe\u3067\u4f7f\u7528\u53ef\u80fd\u306a\u91cf\u6307\u5b9a\u5b50\u306f\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
\u3010 * \u3011 \u2026 \u76f4\u524d\u306e\u30d1\u30bf\u30fc\u30f3\u306e 0 \u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057
\u3010 + \u3011 \u2026 \u76f4\u524d\u306e\u30d1\u30bf\u30fc\u30f3\u306e 1 \u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057
\u3010 ? \u3011 \u2026 \u76f4\u524d\u306e\u30d1\u30bf\u30fc\u30f3\u306e 0 \u56de\u304b 1 \u56de\u306e\u7e70\u308a\u8fd4\u3057
\u3010 {n} \u3011 \u2026 \u76f4\u524d\u306e\u30d1\u30bf\u30fc\u30f3\u306e n \u56de\u306e\u7e70\u308a\u8fd4\u3057
\u3010 {n,} \u3011 \u2026 \u76f4\u524d\u306e\u30d1\u30bf\u30fc\u30f3\u306e n \u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057
\u3010 {n,m} \u3011 \u2026 \u76f4\u524d\u306e\u30d1\u30bf\u30fc\u30f3\u306e n ~ m \u56de\u306e\u7e70\u308a\u8fd4\u3057<\/p>\n\n\n\n
\u4ee5\u4e0b\u306e\u4f8b\u306e\u3088\u3046\u306b\u3001\u4f7f\u7528\u3059\u308b\u91cf\u6307\u5b9a\u5b50\u306b\u3088\u3063\u3066\u4e00\u81f4\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u304c\u5909\u5316\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "1 10 100";\n\nconst regex1 = \/10*\/g;\n\/\/ 1, 10, 100\n\nconst regex2 = \/10+\/g;\n\/\/ 10, 100\n\nconst regex3 = \/10?\/g;\n\/\/ 1, 10, 10\n\nconst regex4 = \/10{2}\/g;\n\/\/ 100\n\nconst regex5 = \/10{1,}\/g;\n\/\/ 10, 100\n\nconst regex6 = \/10{0,2}\/g;\n\/\/ 1, 10, 100<\/code><\/pre><\/div>\n\n\n\n\u6587\u5b57\u5217\u306e\u5148\u982d\u30fb\u672b\u5c3e\u3092\u8868\u3059\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n
\u6587\u5b57\u5217\u306e\u5148\u982d\u3001\u3082\u3057\u304f\u306f\u672b\u5c3e\u3092\u8868\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30a2\u30f3\u30ab\u30fc\u3068\u547c\u3070\u308c\u308b\u30e1\u30bf\u6587\u5b57\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010 ^ \u3011 \u2026 \u6587\u5b57\u5217\u306e\u5148\u982d
\u3010 $ \u3011 \u2026 \u6587\u5b57\u5217\u306e\u672b\u5c3e<\/p>\n\n\n\n
\u6587\u5b57\u5217\u306e\u5148\u982d\u3092\u8868\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306e\u5192\u982d\u306b ^ \u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst regex = \/^apple\/;\n\n\/\/ \u5148\u982d\u306b apple\u304c\u3042\u308b\u306e\u3067\u5bfe\u8c61\u3068\u306a\u308b\nconst str1 = "apple,banana";\n\n\/\/ apple\u304c\u5148\u982d\u306b\u306a\u3044\u306e\u3067\u5bfe\u8c61\u5916\nconst str2 = "banana,apple";<\/code><\/pre><\/div>\n\n\n\n\u53cd\u5bfe\u306b\u3001\u6587\u5b57\u5217\u306e\u672b\u5c3e\u3092\u8868\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306e\u672b\u5c3e\u306b $ \u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst reg = \/apple$\/;\n\n\/\/ apple\u304c\u672b\u5c3e\u306b\u306a\u3044\u306e\u3067\u5bfe\u8c61\u5916\nconst str1 = "apple,banana";\n\n\/\/ \u672b\u5c3e\u306b apple\u304c\u3042\u308b\u306e\u3067\u5bfe\u8c61\u3068\u306a\u308b\nconst str2 = "banana,apple";<\/code><\/pre><\/div>\n\n\n\n\u7279\u6b8a\u306a\u610f\u5473\u3092\u8868\u3059\u6587\u5b57\u30d1\u30bf\u30fc\u30f3<\/h3>\n\n\n\n
\u30e1\u30bf\u6587\u5b57\u306e\u4e2d\u306b\u306f\u3001\u6587\u5b57\u30af\u30e9\u30b9\u30a8\u30b9\u30b1\u30fc\u30d7\u3068\u3044\u3046\u3001\u8a00\u8a9e\u4ed5\u69d8\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u7279\u5225\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u8868\u3059\u30e1\u30bf\u6587\u5b57\u304c\u5b58\u5728\u3057\u307e\u3059\u3002
\u4f7f\u7528\u53ef\u80fd\u306a\u6587\u5b57\u30af\u30e9\u30b9\u30a8\u30b9\u30b1\u30fc\u30d7\u306f\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n
\u3010 . \u3011 \u2026 \u6539\u884c\u6587\u5b57\u3092\u9664\u304f1\u6587\u5b57
\u3010 \\w \u3011 \u2026 \u5927\u6587\u5b57\/\u5c0f\u6587\u5b57\u306e\u82f1\u5b57\u3001\u6570\u5b57\u3001\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u306b\u8a72\u5f53 ([A-Za-z0-9_]\u3068\u540c\u7fa9)
\u3010 \\d \u3011 \u2026 \u6570\u5b57\uff11\u6587\u5b57\u306b\u8a72\u5f53 ([0-9] \u3068\u540c\u7fa9)
\u3010 \\n \u3011 \u2026 \u6539\u884c\u6587\u5b57\u306b\u8a72\u5f53
\u3010 \\r \u3011 \u2026 \u5fa9\u5e30\u30b3\u30fc\u30c9 \uff08\u884c\u672b\u304b\u3089\u884c\u982d\u306b\u623b\u3059\u30b3\u30fc\u30c9) \u306b\u8a72\u5f53\u76f4
\u3010 \\t \u3011 \u2026 \u30bf\u30d6\u6587\u5b57\u306b\u8a72\u5f53
\u3010 \\s \u3011 \u2026 \u7a7a\u767d\u6587\u5b57\u306b\u8a72\u5f53<\/p>\n\n\n\n
\\w, \\d, \\s \u306f\u5927\u6587\u5b57\u3067\u3082\u6307\u5b9a\u53ef\u80fd\u304c\u53ef\u80fd\u3067\u3001\u305d\u306e\u5834\u5408\u306f\u4e0a\u8a18\u306e\u6761\u4ef6\u4ee5\u5916\u306e\uff11\u6587\u5b57\u3092\u8868\u3057\u307e\u3059\u3002
\u3053\u308c\u3089\u306e\u65e2\u5b58\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u3092\u5bfe\u8c61\u3068\u3059\u308b\u5834\u5408\u306f\u3001\u6587\u5b57\u30af\u30e9\u30b9( [] )\u3092\u4f7f\u7528\u3059\u308b\u3088\u308a\u3082\u7c21\u6f54\u306b\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "apple 100 bnana 250";\n\nconst reg1 = \/\\d+\/g;\n\/\/ 100, 250\n\nconst reg = \/\\S+\/g;\n\/\/ apple, 100, bnana, 250<\/code><\/pre><\/div>\n\n\n\n\u6b63\u898f\u8868\u73fe\u306e\u30a8\u30b9\u30b1\u30fc\u30d7<\/h2>\n\n\n\n
\u6b63\u898f\u8868\u73fe\u306e\u4f7f\u7528\u6642\u306b\u3001\u6307\u5b9a\u3059\u308b\u5185\u5bb9\u306b\u3088\u3063\u3066\u306f\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u304c\u5fc5\u8981\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002
\u8a72\u5f53\u3059\u308b\u30b1\u30fc\u30b9\u3068\u51e6\u7406\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u304c\u5fc5\u8981\u306a\u30b1\u30fc\u30b9<\/h3>\n\n\n\n
JavaScript\u306e\u6b63\u898f\u8868\u73fe\u3067\u30a8\u30b9\u30b1\u30fc\u30d7\u304c\u5fc5\u8981\u3068\u306a\u308b\u30b1\u30fc\u30b9\u306f\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\uff12\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n
\n- \u30e1\u30bf\u6587\u5b57\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u8a18\u53f7\u3092\u6587\u5b57\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u5834\u5408<\/li>\n\n\n\n
- RegExp\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306e\u6307\u5b9a\u6642\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408<\/li>\n<\/ul>\n\n\n\n
\u6587\u5b57\u30af\u30e9\u30b9\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b [ ] \u3084\u3001\u91cf\u6307\u5b9a\u5b50\u3068\u3057\u3066\u4f7f\u7528\u3059\u308b + \u306a\u3069\u3001\u30e1\u30bf\u6587\u5b57\u3068\u3057\u3066\u5224\u65ad\u3055\u308c\u308b\u8a18\u53f7\u3092\u901a\u5e38\u306e\u6587\u5b57\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u5834\u5408\u306f\u3001\u30e1\u30bf\u6587\u5b57\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u793a\u3059\u305f\u3081\u306b\u30a8\u30b9\u30b1\u30fc\u30d7\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002
\u6b63\u898f\u8868\u73fe\u30ea\u30c6\u30e9\u30eb\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u8868\u8a18\u5f62\u5f0f\u306e\u4e00\u90e8\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u308b\u30b9\u30e9\u30c3\u30b7\u30e5\u3082\u30a8\u30b9\u30b1\u30fc\u30d7\u5bfe\u8c61\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305f\u3001\u5f15\u6570\u306b\u6e21\u3055\u308c\u305f\u6b63\u898f\u8868\u73fe\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u3046 RegExp\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5834\u5408\u3001\u6b63\u898f\u8868\u73fe\u30ea\u30c6\u30e9\u30eb\u3068\u540c\u3058\u69cb\u6587\u3067\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u8a18\u8ff0\u3059\u308b\u3068\u30e1\u30bf\u6587\u5b57\u3068\u3057\u3066\u6a5f\u80fd\u3057\u306a\u3044\u305f\u3081\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u3057\u3066\u30e1\u30bf\u6587\u5b57\u3068\u3057\u3066\u5224\u65ad\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u306b\u3088\u308b\u30a8\u30b9\u30b1\u30fc\u30d7<\/h3>\n\n\n\n
\u30a8\u30b9\u30b1\u30fc\u30d7\u51e6\u7406\u3092\u884c\u3046\u969b\u306f\u3001\u5bfe\u8c61\u306e\u6587\u5b57\u306e\u524d\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u4ed8\u3051\u3066\u8a18\u8ff0\u3057\u307e\u3059\u3002
\u4f8b\u3048\u3070\u3001RegExp\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u6587\u5b57\u30af\u30e9\u30b9\u30a8\u30b9\u30b1\u30fc\u30d7\u3092\u6271\u3046\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u3066\u30a8\u30b9\u30b1\u30fc\u30d7\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst regex = RegExp('\\\\d+');<\/code><\/pre><\/div>\n\n\n\n\u6587\u5b57\u30af\u30e9\u30b9\u30a8\u30b9\u30b1\u30fc\u30d7\u306b\u306f\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u304c\u542b\u307e\u308c\u308b\u305f\u3081\u3001\u30e1\u30bf\u6587\u5b57\u306e\u524d\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u3082\u3046\uff11\u3064\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u305d\u306e\u4ed6\u306e\u30e1\u30bf\u6587\u5b57\u306b\u3064\u3044\u3066\u3082\u3001\u6587\u5b57\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u5834\u5408\u306f\u5bfe\u8c61\u306e\u6587\u5b57\u306e\u76f4\u524d\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u4ed8\u3051\u3066\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n\/\/ \u30a8\u30b9\u30b1\u30fc\u30d7\u3057\u305f\u3044\u6587\u5b57\u306e\u76f4\u524d\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\nconst regex1 = \/\\+10*\/g;\n\n\/\/ \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5834\u5408\u306f\u30a8\u30b9\u30b1\u30fc\u30d7\u6642\u30822\u3064\u8a18\u8ff0\u3059\u308b\nconst regex2 = RegExp("\\\\+10*", "g");<\/code><\/pre><\/div>\n\n\n\n\u6b63\u898f\u8868\u73fe\u306b\u95a2\u9023\u3059\u308b\u30e1\u30bd\u30c3\u30c9<\/h2>\n\n\n\n
\u6b63\u898f\u8868\u73fe\u306f\u3001\u69d8\u3005\u306a\u30e1\u30bd\u30c3\u30c9\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\u4eca\u56de\u306f\u3001\u305d\u306e\u4e2d\u304b\u3089\u4ee3\u8868\u7684\u306a\u3082\u306e\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
match\u30e1\u30bd\u30c3\u30c9\u3067\u6587\u5b57\u5217\u306e\u4e00\u81f4\u691c\u7d22\u3092\u884c\u3046<\/h3>\n\n\n\n
\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u306e\uff11\u3064\u304c\u3001match\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002
\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u3001\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u306e\u4e2d\u306b\u6307\u5b9a\u306e\u6587\u5b57\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u5426\u304b\u3092\u691c\u7d22\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n\u5bfe\u8c61\u6587\u5b57\u5217.match(\u691c\u7d22\u5185\u5bb9);<\/code><\/pre><\/div>\n\n\n\n\u5f15\u6570\u306b\u6b63\u898f\u8868\u73fe\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u3001\u7279\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u691c\u7d22\u3057\u305f\u3044\u5834\u5408\u306b\u3088\u304f\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u691c\u7d22\u5185\u5bb9\u304c\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u8981\u7d20\u306b\u6301\u3064\u914d\u5217\u3092\u623b\u308a\u5024\u3068\u3057\u3066\u8fd4\u3057\u307e\u3059\u3002
\u542b\u307e\u308c\u306a\u3044\u5834\u5408\u306b\u306f null \u3092\u8fd4\u3059\u305f\u3081\u3001if\u6587\u306e\u6761\u4ef6\u5f0f\u3068\u3057\u3066\u6d3b\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "This is apple";\n\nconst result = str.match(\/apple$\/);\n\nif(result){\n console.log('\u691c\u7d22\u5185\u5bb9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059');\n}else{\n console.log('\u691c\u7d22\u5185\u5bb9\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f');\n}<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n\u691c\u7d22\u5185\u5bb9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059<\/code><\/pre><\/div>\n\n\n\n\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u4ed8\u3051\u305a\u306b\u6b63\u898f\u8868\u73fe\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u30d1\u30bf\u30fc\u30f3\u306b\u5f53\u3066\u306f\u307e\u308b\u6587\u5b57\u5217\u304c\u8907\u6570\u5b58\u5728\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u6700\u521d\u306b\u4e00\u81f4\u3057\u305f\u6587\u5b57\u5217\u306e\u307f\u304c\u7d50\u679c\u3068\u3057\u3066\u8fd4\u3055\u308c\u307e\u3059\u3002
\u5f53\u3066\u306f\u307e\u308b\u5168\u3066\u306e\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u6b63\u898f\u8868\u73fe\u306e\u8a18\u8ff0\u6642\u306b\u30b0\u30ed\u30fc\u30d0\u30eb\u30d5\u30e9\u30b0 (g) \u3092\u4ed8\u3051\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "apple100 banana200";\n\n\/\/ \u6700\u521d\u306b\u4e00\u81f4\u3057\u305f\u6587\u5b57\u5217\u306e\u307f\u3057\u304b\u53d6\u5f97\u3067\u304d\u306a\u3044\nconst result1 = str.match(\/[a-z]+\/);\n\/\/ \u30b0\u30ed\u30fc\u30d0\u30eb\u30d5\u30e9\u30b0\u3092\u4ed8\u3051\u308b\u3068\u8907\u6570\u53d6\u5f97\u53ef\u80fd\nconst result2 = str.match(\/[a-z]+\/g);\n\n\/\/ \u53d6\u5f97\u3057\u305f\u6587\u5b57\u5217\u304c\u8907\u6570\u304b\u5426\u304b\u3067\u914d\u5217\u306e\u4e2d\u8eab\u3082\u5909\u308f\u308b\nconsole.log(result1);\nconsole.log(result2);<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n[ 'apple', index: 0, input: 'apple100 banana200', groups: undefined ]\n[ 'apple', 'banana' ]<\/code><\/pre><\/div>\n\n\n\nsearch\u30e1\u30bd\u30c3\u30c9\u3067\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u306e\u4f4d\u7f6e\u3092\u691c\u7d22\u3059\u308b<\/h3>\n\n\n\n
\u691c\u7d22\u5185\u5bb9\u304c\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u3001\u6587\u5b57\u5217\u306e\u4f4d\u7f6e\u3092\u53d6\u5f97\u3057\u305f\u3044\u6642\u306b\u4f7f\u7528\u3059\u308b\u306e\u304c\u3001search\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n\u5bfe\u8c61\u6587\u5b57\u5217.search(\u691c\u7d22\u5185\u5bb9);<\/code><\/pre><\/div>\n\n\n\nsearch\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6700\u521d\u306b\u691c\u7d22\u5185\u5bb9\u3068\u4e00\u81f4\u3057\u305f\u6587\u5b57\u5217\u306e\u3046\u3061\u3001\u5148\u982d\u306b\u4f4d\u7f6e\u3059\u308b\u6587\u5b57\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8fd4\u3057\u307e\u3059\u3002
\u691c\u7d22\u5185\u5bb9\u304c\u6587\u5b57\u5217\u306b\u542b\u307e\u308c\u306a\u3044\u5834\u5408\u306f\u3001-1 \u3092\u623b\u308a\u5024\u3068\u3057\u3066\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "This is apple";\n\nconsole.log(str.search(\/apple\/));\n\n\/\/ \u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306f -1 \u3092\u8fd4\u3059\nconsole.log(str.search(\/banana\/));<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n8\n-1<\/code><\/pre><\/div>\n\n\n\ntest\u30e1\u30bd\u30c3\u30c9\u3067\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306b\u5408\u81f4\u3057\u3066\u3044\u308b\u304b\u5224\u5b9a\u3059\u308b<\/h3>\n\n\n\n
\u540c\u3058\u304f\u3001\u6587\u5b57\u5217\u306e\u691c\u7d22\u306b\u4f7f\u7528\u3067\u304d\u308b\u30e1\u30bd\u30c3\u30c9\u306e\uff11\u3064\u306b\u3001test\u30e1\u30bd\u30c3\u30c9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
match\u30e1\u30bd\u30c3\u30c9\u3068 search\u30e1\u30bd\u30c3\u30c9\u306e\uff12\u3064\u306f\u3001\u6587\u5b57\u5217\u578b\u306e\u65e2\u5b58\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3067\u3059\u304c\u3001test\u30e1\u30bd\u30c3\u30c9\u306f RegExp\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u30e1\u30bd\u30c3\u30c9\u3068\u306a\u308a\u307e\u3059\u3002
\u305d\u306e\u305f\u3081\u3001\u6b63\u898f\u8868\u73fe\uff08RegExp\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff09\u306b\u5bfe\u3057\u3066\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3001\u5f15\u6570\u306b\u691c\u7d22\u5bfe\u8c61\u3068\u3059\u308b\u6587\u5b57\u5217\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n\u6b63\u898f\u8868\u73fe.test(\u5bfe\u8c61\u6587\u5b57\u5217);<\/code><\/pre><\/div>\n\n\n\n\u30e1\u30bd\u30c3\u30c9\u306e\u623b\u308a\u5024\u306f\u3001\u771f\u507d\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002
\u7d30\u304b\u3044\u691c\u7d22\u5185\u5bb9\u306f\u5fc5\u8981\u306a\u304f\u3001\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u304c\u542b\u307e\u308c\u308b\u304b\u5426\u304b\u306e\u307f\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306b\u6d3b\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst reg = \/apple\/;\n\nconsole.log(reg.test("This is apple"));\nconsole.log(reg.test("This is banana"));<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\ntrue\nfalse<\/code><\/pre><\/div>\n\n\n\n\u6b63\u898f\u8868\u73fe\u3067\u6587\u5b57\u5217\u3092\u64cd\u4f5c\u3059\u308b<\/h2>\n\n\n\n
\u3053\u3053\u307e\u3067\u306f\u3001\u6587\u5b57\u5217\u3092\u691c\u7d22\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4e2d\u5fc3\u306b\u7d39\u4ecb\u3057\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u4ed6\u306b\u3082\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3067\u304d\u308b\u30e1\u30bd\u30c3\u30c9\u304c\u3044\u304f\u3064\u304b\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u7d9a\u3044\u3066\u306f\u3001\u6587\u5b57\u5217\u306e\u64cd\u4f5c\u306b\u6d3b\u7528\u3067\u304d\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
replace\u30e1\u30bd\u30c3\u30c9\u3067\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3059\u308b<\/h3>\n\n\n\n
1\u3064\u76ee\u306f\u3001\u6587\u5b57\u5217\u306e\u7f6e\u63db\u3092\u884c\u3044\u305f\u3044\u6642\u306b\u6d3b\u7528\u53ef\u80fd\u306a replace\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3067\u3059\u3002<\/p>\n\n\n\n
replace\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u5185\u306b\u3042\u308b\u7279\u5b9a\u306e\u6587\u5b57\u3092\u3001\u5225\u306e\u6587\u5b57\u306b\u7f6e\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002
\u6587\u5b57\u5217\u304b\u3089\u7a7a\u767d\u6587\u5b57\u3092\u9664\u304d\u305f\u3044\u3001\u6216\u3044\u306f\u65e5\u4ed8\u8868\u8a18\u3092\u4efb\u610f\u306e\u66f8\u5f0f\u306b\u5909\u66f4\u3057\u305f\u3044\u306a\u3069\u3001\u6587\u5b57\u5217\u306e\u4e00\u90e8\u306e\u307f\u3092\u5909\u66f4\u3057\u305f\u3044\u5834\u5408\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n\u5bfe\u8c61\u306e\u6587\u5b57\u5217.replace( \u7f6e\u63db\u3059\u308b\u6587\u5b57, \u7f6e\u63db\u5f8c\u306e\u6587\u5b57 );<\/code><\/pre><\/div>\n\n\n\n\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306b\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u7f6e\u63db\u3059\u308b\u6587\u5b57\u306e\u6761\u4ef6\u3092\u67d4\u8edf\u306b\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "\u5f7c\u306e\u540d\u524d\u306f\u3000\u5c71\u7530\u3000\u592a\u90ce\u3000\u3067\u3059\u3002";\nconst result = str.replace(\/\\s+\/g, "");\n\nconsole.log(result);<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n\u5f7c\u306e\u540d\u524d\u306f\u5c71\u7530\u592a\u90ce\u3067\u3059\u3002<\/code><\/pre><\/div>\n\n\n\nmatch\u30e1\u30bd\u30c3\u30c9\u306e\u6642\u3068\u540c\u69d8\u306b\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30d5\u30e9\u30b0\u3092\u4ed8\u3051\u305a\u306b\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u6700\u521d\u306b\u4e00\u81f4\u3057\u305f\u6587\u5b57\u3057\u304b\u7f6e\u63db\u304c\u884c\u308f\u308c\u307e\u305b\u3093\u3002
\u8a72\u5f53\u3059\u308b\u5168\u3066\u306e\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30d5\u30e9\u30b0 (g) \u3092\u5fc5\u305a\u4ed8\u3051\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
split\u30e1\u30bd\u30c3\u30c9\u3067\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306b\u3088\u3063\u3066\u6587\u5b57\u5217\u3092\u5206\u5272\u3059\u308b<\/h3>\n\n\n\n
2\u3064\u76ee\u306f\u3001\u6587\u5b57\u5217\u3092\u5206\u5272\u3057\u305f\u3044\u5834\u5408\u306b\u6709\u52b9\u306a split\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3067\u3059\u3002<\/p>\n\n\n\n
split\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u5f15\u6570\u306b\u6307\u5b9a\u3057\u305f\u4efb\u610f\u306e\u533a\u5207\u308a\u6587\u5b57\u3092\u57fa\u6e96\u3068\u3057\u3066\u3001\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u3092\u8907\u6570\u306e\u8981\u7d20\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\u5206\u5272\u3055\u308c\u305f\u305d\u308c\u305e\u308c\u306e\u6587\u5b57\u5217\u306f\u3001\u623b\u308a\u5024\u3067\u3042\u308b\u914d\u5217\u306b\u8981\u7d20\u3068\u3057\u3066\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5225\u3005\u306e\u5024\u3068\u3057\u3066\u6d3b\u7528\u53ef\u80fd\u3067\u3059\u3002\uff08\u305f\u3060\u3057\u3001\u533a\u5207\u308a\u6587\u5b57\u306f\u7d50\u679c\u306b\u542b\u307e\u308c\u307e\u305b\u3093\uff09<\/p>\n\n\n\n
\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\nstr.split(\u533a\u5207\u308a\u6587\u5b57, \u6700\u5927\u8981\u7d20\u6570);<\/code><\/pre><\/div>\n\n\n\n\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst str = "apple123banana456peach";\n\nconst result = str.split(\/\\d+\/);\n\nconsole.log(result);<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n[ 'apple', 'banana', 'peach' ]<\/code><\/pre><\/div>\n\n\n\n\u6b63\u898f\u8868\u73fe\u306e\u5b9f\u8df5\u4f8b<\/h2>\n\n\n\n
\u6700\u5f8c\u306b\u3001\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3057\u3066\u3067\u304d\u308b\u5b9f\u8df5\u4f8b\u3092\u3044\u304f\u3064\u304b\u7d39\u4ecb\u3057\u307e\u3059\u3002
\u4eca\u56de\u306f\u3001\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u306e\u9805\u76ee\u306b\u3082\u3088\u304f\u3042\u308b\u96fb\u8a71\u756a\u53f7\u3068\u90f5\u4fbf\u756a\u53f7\u3092\u3001\u6b63\u3057\u3044\u5f62\u5f0f\u3067\u5165\u529b\u3055\u308c\u3066\u3044\u308b\u304b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u306f\u3058\u3081\u306b\u3001\u96fb\u8a71\u756a\u53f7\u306e\u4f8b\u304b\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002
\u30cf\u30a4\u30d5\u30f3\u3092\u5165\u308c\u308b\u5834\u5408\u3068\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306e\uff12\u901a\u308a\u304c\u3042\u308b\u306e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u6307\u5b9a\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u307e\u305a\u3001\u96fb\u8a71\u756a\u53f7\u306f\u5fc5\u305a0\u304b\u3089\u958b\u59cb\u3055\u308c\u308b\u305f\u3081\u3001\u3069\u3061\u3089\u306e\u30b1\u30fc\u30b9\u3067\u3082\u306f\u3058\u3081\u306b0\u3092\u8a18\u8ff0\u3057\u307e\u3057\u3087\u3046\u3002
\u5165\u529b\u30d5\u30a9\u30fc\u30e0\u306a\u3069\u306e\u5834\u5408\u306f0\u304c\u6587\u5b57\u5217\u306e\u5148\u982d\u3068\u306a\u308b\u305f\u3081\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066 ^ \u30920\u306e\u524d\u306b\u4ed8\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n
\u30cf\u30a4\u30d5\u30f3\u3092\u5165\u308c\u306a\u3044\u5834\u5408\u306f\u30010\u306b\u7d9a\u3044\u30669\u6841\u3001\u3082\u3057\u304f\u306f10\u6841\u306e\u6570\u5b57\u304c\u9023\u7d9a\u3057\u3066\u7d9a\u304f\u30d1\u30bf\u30fc\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
\u5148\u982d\u306e\u4f4d\u7f6e\u6307\u5b9a\u3068\u540c\u69d8\u306b\u3001\u4ed6\u306e\u6587\u5b57\u304c\u5f8c\u308d\u306b\u7d9a\u304f\u53ef\u80fd\u6027\u304c\u306a\u3044\u5834\u5408\u306b\u306f\u3001\u6587\u672b\u3092\u793a\u3059 $ \u3092\u4ed8\u3051\u308b\u3068\u3088\u308a\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst reg = \/^0\\d{9,10}$\/;\n\nconst telNumber1 = "0311112222"; \/\/ \u56fa\u5b9a\u96fb\u8a71\nconst telNumber2 = "0120333444"; \/\/ \u30d5\u30ea\u30fc\u30c0\u30a4\u30e4\u30eb\nconst telNumber3 = "09055556666"; \/\/ \u643a\u5e2f\nconst telNumber4 = "11122223333"; \/\/ \u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\n\nconsole.log(reg.test(telNumber1));\nconsole.log(reg.test(telNumber2));\nconsole.log(reg.test(telNumber3));\nconsole.log(reg.test(telNumber4));<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\ntrue\ntrue\ntrue\nfalse<\/code><\/pre><\/div>\n\n\n\n\u30cf\u30a4\u30d5\u30f3\u3092\u5165\u308c\u308b\u5834\u5408\u306f\u3001\u533a\u9593\u3054\u3068\u306e\u6841\u6570\u3092\u305d\u308c\u305e\u308c\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\nconst reg = \/^0\\d{1,3}-\\d{2,4}-\\d{3,4}$\/;\n\nconst telNumber1 = "03-1111-2222"; \/\/ \u56fa\u5b9a\u96fb\u8a71\nconst telNumber2 = "0120-333-444"; \/\/ \u30d5\u30ea\u30fc\u30c0\u30a4\u30e4\u30eb\nconst telNumber3 = "090-5555-6666"; \/\/ \u643a\u5e2f\nconst telNumber4 = "047--2223333"; \/\/ \u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\n\nconsole.log(reg.test(telNumber1));\nconsole.log(reg.test(telNumber2));\nconsole.log(reg.test(telNumber3));\nconsole.log(reg.test(telNumber4));<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\ntrue\ntrue\ntrue\nfalse<\/code><\/pre><\/div>\n\n\n\n\u7d9a\u3044\u3066\u3001\u90f5\u4fbf\u756a\u53f7\u306e\u30b1\u30fc\u30b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u90f5\u4fbf\u756a\u53f7\u306f\u30013\u6841\u306e\u6570\u5b57\u30684\u6841\u306e\u6570\u5b57\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u8868\u73fe\u3055\u308c\u307e\u3059\u3002
\u30cf\u30a4\u30d5\u30f3\u306a\u3057\u306e\u5834\u5408\u306f\uff17\u6841\u3001\u30cf\u30a4\u30d5\u30f3\u3042\u308a\u306e\u5834\u5408\u306f\uff13\u6841\u30fb\u30cf\u30a4\u30d5\u30f3\u30fb\uff14\u6841\u306e\u9806\u3067\u30d1\u30bf\u30fc\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n\/\/ \u30cf\u30a4\u30d5\u30f3\u306a\u3057\u306e\u5834\u5408\nconst reg1 = \/^\\d{7}$\/;\n\nconsole.log(reg1.test("1112222")); \/\/ \u6b63\u5e38\u30b1\u30fc\u30b9\nconsole.log(reg1.test("334444")); \/\/ \u30a8\u30e9\u30fc\u30b1\u30fc\u30b9\n\n\/\/ \u30cf\u30a4\u30d5\u30f3\u3042\u308a\u306e\u5834\u5408\nconst reg2 = \/^[0-9]{3}-[0-9]{4}$\/;\n\nconsole.log(reg2.test("111-2222")); \/\/ \u6b63\u5e38\u30b1\u30fc\u30b9\nconsole.log(reg2.test("3334-444")); \/\/ \u30a8\u30e9\u30fc\u30b1\u30fc\u30b9<\/code><\/pre><\/div>\n\n\n\n\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\ntrue\nfalse\ntrue\nfalse<\/code><\/pre><\/div>\n\n\n\n\u307e\u3068\u3081<\/h2>\n\n\n\n
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JavaScript\u306e\u52c9\u5f37\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n
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\n\uff1c\u30c6\u30c3\u30af\u30de\u30cb\u30a2\u306e\u7279\u5fb4\uff1e<\/strong>
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