{"id":66,"date":"2021-01-17T19:32:39","date_gmt":"2021-01-17T11:32:39","guid":{"rendered":"http:\/\/gjweb.top\/?p=66"},"modified":"2021-01-17T19:32:40","modified_gmt":"2021-01-17T11:32:40","slug":"%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/gjweb.top\/?p=66","title":{"rendered":"\u6b63\u5219\u8868\u8fbe\u5f0f"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">match<\/h2>\n\n\n\n<p>\u8fd4\u56de\u627e\u5230\u7684\u5185\u5bb9<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>str.match(\/\u6b63\u5219\/)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">search<\/h2>\n\n\n\n<p>\u8fd4\u56de\u627e\u7684\u4e0b\u6807<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>str.search(\/\u6b63\u5219\/)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">replace<\/h2>\n\n\n\n<p>\u66ff\u6362\u5b57\u7b26\u4e32<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>str.replace(regexp\/str,\u66ff\u6362\u7684\u5185\u5bb9)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">split<\/h2>\n\n\n\n<p>\u5207\u5272\u5b57\u7b26\u4e32\u8fd4\u56de\u5207\u5272\u540e\u7684\u5b57\u7b26\u6570\u7ec4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>str.split(regexp\/str)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">regexp.exec<\/h2>\n\n\n\n<p>\u8fd4\u56de\u5339\u914d\u9879\u5982\u679c\u6ca1\u6709\u8fd4\u56denull<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>regexp.exec(str)<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">regexp.test()<\/h2>\n\n\n\n<p>\u9a8c\u8bc1\u5b57\u7b26\u4e32\u662f\u5426\u5339\u914d\u6b63\u5219,\u8fd4\u56deboolear<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>regexp.test(str)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u8868\u8fbe\u5f0f<\/h1>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7b80\u5199\u6570\u5b57\u68c0\u7d22 [0-9]<\/li><li>\u5b57\u6bcd [a-z] [A-Z] [A-Za-z]<\/li><li>\u6c49\u5b57 [\\u4e00-\\ugfa5]<\/li><li>\u9664\u4e86 [ ^xxx]<\/li><li>\u9884\u5b9a\u4e49\u5b57\u7b26\u96c6<\/li><li>\u6570\u5b57 \\d<\/li><li>\u5b57\u6bcd\u6570\u5b57\u4e0b\u5212\u7ebf \\w<\/li><li>\u7a7a\u5b57\u7b26\u4e32 \\s<\/li><li>\u91cf\u8bcd<\/li><li>{n,m} {n,} {n}<\/li><li>? \u53ef\u6709\u53ef\u65e0<\/li><li>&#8220;*&#8221; \u4e0d\u9650<\/li><li>&#8216;+&#8217; \u81f3\u5c11\u51fa\u73b0\u4e00\u6b21<\/li><li>\u5339\u914d<\/li><li>\u5f00\u59cb ^<\/li><li>\u7ed3\u675f $<\/li><li>\u5c06\u8d2a\u5a6a\u8f6c\u4e3a\u61d2\u60f0\u6a21\u5f0f<\/li><li>.*?<\/li><li>[ ^xxx]*?<\/li><\/ul>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">es6\u65b0\u589e<\/h1>\n\n\n\n<p>\u6784\u9020\u51fd\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>new RegExp('xxx\/igm','i')\n\/\/ \u7b2c\u4e8c\u4e2a\u53c2\u6570(\u4fee\u9970\u7b26)\u4f1a\u8986\u76d6\u524d\u9762\u7684\u4fee\u9970\u7b26\n\/*\n    \u5c5e\u6027\n        flage ===&gt; \u8fd4\u56de\u8868\u8fbe\u5f0f\u7684\u4fee\u9970\u7b26\n        stycky\n    \u4fee\u9970\u7b26\n        y \u548c g \u7c7b\u4f3c(\u5168\u6587\u5339\u914d)\n        \u533a\u522b: g\u540e\u9762\u6709\u5c31\u53ef\u4ee5; y\u4ece\u5339\u914d\u540e\u7684\u7b2c\u4e00\u4e2a\u5f00\u59cb\u7b97\n*\/\n{\n    let str = 'bbb_bb_b';\n    let reg1 = \/b{2,}\/g;\n    let reg2 = \/b{2,}\/y;\n    console.log(reg1.exec(str),reg2.exec(str))\n }\n\/*\n    u \u6b63\u786e\u5904\u7406\u5927\u4e8euFFFFF\u7684Unicode\u5b57\u7b26\n*\/\n{\n    console.log(\/^\\uD83D\/u.test('\\uD83D\\uDC2A'))\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>match \u8fd4\u56de\u627e\u5230\u7684\u5185\u5bb9 search \u8fd4\u56de\u627e\u7684\u4e0b\u6807 replace \u66ff\u6362\u5b57\u7b26\u4e32 split \u5207\u5272\u5b57\u7b26\u4e32\u8fd4\u56de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-66","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/66","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=66"}],"version-history":[{"count":0,"href":"https:\/\/gjweb.top\/index.php?rest_route=\/wp\/v2\/posts\/66\/revisions"}],"wp:attachment":[{"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=66"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=66"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gjweb.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}