{"id":4174,"date":"2012-04-27T06:11:00","date_gmt":"2012-04-26T21:11:00","guid":{"rendered":"http:\/\/rentan.org\/blog\/?p=4174"},"modified":"2012-04-29T23:43:19","modified_gmt":"2012-04-29T14:43:19","slug":"string-regexp-replace-capture-number-0","status":"publish","type":"post","link":"https:\/\/rentan.org\/blog\/2012\/04\/27\/string-regexp-replace-capture-number-0\/","title":{"rendered":"DMonkey: String\/RegExp.replace \u30670\u56de\u306e\u30de\u30c3\u30c1\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\u3068 number 0 \u306b\u306a\u308b"},"content":{"rendered":"<p><span class=\"psts\">[4\u670829\u65e5\u8ffd\u8a18] <\/span> \u8a02\u6b63: number 0 \u306b\u306a\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30ad\u30e3\u30d7\u30c1\u30e3\u7d50\u679c\u304c\u5f15\u6570\u3068\u3057\u3066\u6e21\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u30de\u30c3\u30c1\u3057\u305f\u4f4d\u7f6e(index)\u3092\u53c2\u7167\u3057\u3066\u3044\u305f\u3060\u3051\u3067\u3057\u305f\uff080\u56de\u306e\u30de\u30c3\u30c1\u30681\u56de\u4ee5\u4e0a\u306e\u30de\u30c3\u30c1\u306e\u5834\u5408\u3067\u3000arguments.length \u304c\u9055\u3046\uff09\u3002\u7533\u3057\u8a33\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<ul>\n<li>String.replace() \u3084 RegExp.replace \u3067\u3001<\/li>\n<li>\u6b63\u898f\u8868\u73fe\u306b <code>(\uff5e)?<\/code> \u3084 <code>(\uff5e)*<\/code> \u3092\u4f7f\u3044\u3001<\/li>\n<li>\u7f6e\u63db\u6587\u5b57\u5217\u3068\u3057\u3066\u95a2\u6570\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3068\u3001<\/li>\n<li>\u6700\u5f8c\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u90e8\u5206\u304c0\u56de\u306e\u7e70\u308a\u8fd4\u3057\u306b\u30de\u30c3\u30c1\u3057\u305f\u6642\u3001<\/li>\n<li><del datetime=\"2012-04-29T14:39:16+00:00\">\u30ad\u30e3\u30d7\u30c1\u30e3\u7d50\u679c\u3068\u3057\u3066\u95a2\u6570\u306e\u5f15\u6570\u306b number \u578b\u306e 0 \u304c\u6e21\u3055\u308c\u308b\u3002<\/del>\u30ad\u30e3\u30d7\u30c1\u30e3\u7d50\u679c\u304c\u95a2\u6570\u306e\u5f15\u6570\u306b\u6e21\u3055\u308c\u306a\u3044\u3002<\/li>\n<\/ul>\n<p>\u901a\u5e38\u306f\u7a7a\u6587\u5b57\u5217\u304c\u6e21\u3055\u308c\u308b\u306e\u3067\u3059\u304c\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306b\u6700\u5f8c\u306e\u30ad\u30e3\u30d7\u30c1\u30e3\u304c0\u56de\u30de\u30c3\u30c1\u3060\u3068 <del datetime=\"2012-04-29T14:39:16+00:00\">0 \u304c\u6e21\u3055\u308c\u307e\u3059<\/del>\u30ad\u30e3\u30d7\u30c1\u30e3\u7d50\u679c\u304c\u6e21\u3055\u308c\u307e\u305b\u3093\u3002<del datetime=\"2012-04-29T14:39:16+00:00\">\u4ed6\u306e\u6587\u5b57\u5217\u3068 + \u6f14\u7b97\u5b50\u3067\u7e4b\u3052\u305f\u308a\u3059\u308b\u3068 '0' \u3068\u3044\u3046\u6587\u5b57\u5217\u3068\u3057\u3066\u6271\u308f\u308c\u3066\u3057\u307e\u3046\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/del><\/p>\n<div class=\"prog_code javascript\">\n<code>alert (<br \/>\n&nbsp; 'ab'.replace (\/a(\\d)?b\/, function (s, p1) { return typeof p1; })<br \/>\n);<br \/>\n\/\/number<\/p>\n<p>alert (<br \/>\n&nbsp; 'ab'.replace (\/a(\\d)*b\/, function (s, p1) { return typeof p1; })<br \/>\n);<br \/>\n\/\/number<\/code>\n<\/div>\n<p>\u306a\u304a\u3001\u5404\u7a2e\u30d6\u30e9\u30a6\u30b6\u3067\u306f0\u56de\u30de\u30c3\u30c1\u3067\u3082\u30ad\u30e3\u30d7\u30c1\u30e3\u7d50\u679c\u304c\u5f15\u6570\u3068\u3057\u3066\u6e21\u3055\u308c\u307e\u3059\u304c\u3001\u305d\u306e\u5185\u5bb9\u306f Firefox 12 \u3067\u306f\u7a7a\u6587\u5b57\u5217\uff08string\uff09\u3001Internet Explorer 8 \u3068 Google Chrome 18 \u3067\u306f undefined \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5e38\u306b\u6587\u5b57\u5217\u3067\u6e21\u3055\u308c\u308b Firefox \u5f62\u5f0f\u304c\u697d\u3060\u3068\u601d\u3046\u306e\u3067\u3059\u304c\u3001ECMAScript \u7684\u306b\u306f\u3069\u306e\u52d5\u4f5c\u304c\u6b63\u3057\u3044\u3093\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u5bfe\u51e6\u6cd5<\/p>\n<ul>\n<li>\u6b63\u898f\u8868\u73fe\u306e\u672b\u5c3e\u306b <code>()<\/code> \u3092\u4ed8\u3051\u308b\u3002<\/li>\n<li><code>(\uff5e)?<\/code> \u3092 <code>((\uff5e)?)<\/code> \u306e\u3088\u3046\u306b\u5916\u5074\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3059\u308b\u3002<\/li>\n<li><del datetime=\"2012-04-29T14:39:16+00:00\">\u7f6e\u63db\u6587\u5b57\u5217\u3068\u3057\u3066\u6307\u5b9a\u3055\u308c\u305f\u95a2\u6570\u5185\u3067\u3001number \u578b\u304b\u8abf\u3079\u3066\u7a7a\u6587\u5b57\u5217\u306b\u7f6e\u304d\u63db\u3048\u308b\u3002<\/del><\/li>\n<\/ul>\n<p>\u4e00\u3064\u76ee\u306e\u65b9\u6cd5\u306e\u4f8b\u3002<\/p>\n<div class=\"prog_code javascript\">\n<code>alert(<br \/>\n&nbsp; 'ab'.replace(\/a(\\d)?b()\/, function (s, p1) { return typeof p1; })<br \/>\n);<br \/>\n\/\/string<\/p>\n<p>alert(<br \/>\n&nbsp; 'ab'.replace(\/a(\\d)*b()\/, function (s, p1) { return typeof p1; })<br \/>\n);<br \/>\n\/\/string<\/code>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>[4\u670829\u65e5\u8ffd\u8a18] \u8a02\u6b63: number 0 \u306b\u306a\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30ad\u30e3\u30d7\u30c1\u30e3\u7d50\u679c\u304c\u5f15\u6570\u3068\u3057\u3066\u6e21\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u30de\u30c3\u30c1\u3057\u305f\u4f4d\u7f6e(index)\u3092\u53c2\u7167\u3057\u3066\u3044\u305f\u3060\u3051\u3067\u3057\u305f\uff080\u56de\u306e\u30de\u30c3\u30c1\u30681\u56de\u4ee5\u4e0a\u306e\u30de\u30c3\u30c1\u306e\u5834\u5408\u3067\u3000arguments. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[640],"tags":[1191],"class_list":["post-4174","post","type-post","status-publish","format-standard","hentry","category-irvine","tag-dmonkey"],"_links":{"self":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts\/4174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/comments?post=4174"}],"version-history":[{"count":13,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts\/4174\/revisions"}],"predecessor-version":[{"id":4187,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/posts\/4174\/revisions\/4187"}],"wp:attachment":[{"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/media?parent=4174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/categories?post=4174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rentan.org\/blog\/wp-json\/wp\/v2\/tags?post=4174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}