{"id":10195,"date":"2023-11-28T21:28:52","date_gmt":"2023-11-28T13:28:52","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10195"},"modified":"2023-11-30T19:02:50","modified_gmt":"2023-11-30T11:02:50","slug":"javascript-zhong-slice-splice","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhong-slice-splice\/","title":{"rendered":"JavaScript \u4e2d slice() splice()\uff1f"},"content":{"rendered":"<p><code>slice()<\/code> \u548c <code>splice()<\/code> \u90fd\u662f JavaScript \u4e2d\u7528\u4e8e\u64cd\u4f5c\u6570\u7ec4\u7684\u65b9\u6cd5\uff0c\u4f46\u5b83\u4eec\u6709\u7740\u4e0d\u540c\u7684\u4f5c\u7528\u3002<\/p>\n<h3><a id=\"slice%E6%96%B9%E6%B3%95%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><code>slice()<\/code> \u65b9\u6cd5\uff1a<\/h3>\n<ul>\n<li><code>slice()<\/code> \u65b9\u6cd5\u7528\u4e8e\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u7684\u6307\u5b9a\u90e8\u5206\u3002<\/li>\n<li>\u5b83\u4e0d\u4f1a\u4fee\u6539\u539f\u59cb\u6570\u7ec4\uff0c\u800c\u662f\u8fd4\u56de\u4e00\u4e2a\u4ece\u5f00\u59cb\u7d22\u5f15\u5230\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u62ec\u7ed3\u675f\u7d22\u5f15\uff09\u7684\u65b0\u6570\u7ec4\u3002<\/li>\n<li>\u8bed\u6cd5\uff1a<code>array.slice(start, end)<\/code>\uff0c\u5176\u4e2d <code>start<\/code> \u662f\u5f00\u59cb\u63d0\u53d6\u7684\u8d77\u59cb\u4f4d\u7f6e\uff0c<code>end<\/code> \u662f\u63d0\u53d6\u7684\u7ed3\u675f\u4f4d\u7f6e\uff08\u4e0d\u5305\u62ec\uff09\u3002<\/li>\n<li>\u5982\u679c\u4e0d\u63d0\u4f9b <code>end<\/code> \u53c2\u6570\uff0c\u5219\u63d0\u53d6\u4ece <code>start<\/code> \u4f4d\u7f6e\u5230\u6570\u7ec4\u672b\u5c3e\u7684\u6240\u6709\u5143\u7d20\u3002<\/li>\n<li>\u793a\u4f8b\uff1a<\/li>\n<\/ul>\n<pre><code class=\"language-javascript\">const array = [1, 2, 3, 4, 5];\nconst newArray = array.slice(1, 4);\nconsole.log(newArray); \/\/ \u8f93\u51fa\uff1a[2, 3, 4]\nconsole.log(array); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5]\uff0c\u539f\u6570\u7ec4\u672a\u6539\u53d8\n<\/code><\/pre>\n<h3><a id=\"splice%E6%96%B9%E6%B3%95%EF%BC%9A\" class=\"anchor\" aria-hidden=\"true\"><span class=\"octicon octicon-link\"><\/span><\/a><code>splice()<\/code> \u65b9\u6cd5\uff1a<\/h3>\n<ul>\n<li><code>splice()<\/code> \u65b9\u6cd5\u7528\u4e8e\u4ece\u6570\u7ec4\u4e2d\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002<\/li>\n<li>\u5b83\u4f1a\u4fee\u6539\u539f\u59cb\u6570\u7ec4\uff0c\u5e76\u8fd4\u56de\u88ab\u5220\u9664\u5143\u7d20\u7ec4\u6210\u7684\u65b0\u6570\u7ec4\uff08\u5982\u679c\u6709\u5220\u9664\u7684\u8bdd\uff09\u3002<\/li>\n<li>\u8bed\u6cd5\uff1a<code>array.splice(start, deleteCount, item1, item2, ...)<\/code>\uff0c\u5176\u4e2d <code>start<\/code> \u662f\u5f00\u59cb\u4fee\u6539\u7684\u4f4d\u7f6e\uff0c<code>deleteCount<\/code> \u662f\u8981\u5220\u9664\u7684\u5143\u7d20\u6570\u91cf\uff0c\u53ef\u9009\u7684 <code>item1, item2, ...<\/code> \u662f\u8981\u6dfb\u52a0\u5230\u6570\u7ec4\u7684\u5143\u7d20\u3002<\/li>\n<li>\u793a\u4f8b\uff1a<\/li>\n<\/ul>\n<pre><code class=\"language-javascript\">const array = [1, 2, 3, 4, 5];\nconst removed = array.splice(1, 2, 'a', 'b');\nconsole.log(removed); \/\/ \u8f93\u51fa\uff1a[2, 3]\nconsole.log(array); \/\/ \u8f93\u51fa\uff1a[1, 'a', 'b', 4, 5]\uff0c\u539f\u6570\u7ec4\u5df2\u4fee\u6539\n<\/code><\/pre>\n<p>\u603b\u4e4b\uff0c<code>slice()<\/code> \u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u4e0d\u4fee\u6539\u539f\u59cb\u6570\u7ec4\uff0c\u800c <code>splice()<\/code> \u4fee\u6539\u539f\u59cb\u6570\u7ec4\uff0c\u5e76\u8fd4\u56de\u88ab\u5220\u9664\u7684\u5143\u7d20\u7ec4\u6210\u7684\u65b0\u6570\u7ec4\uff08\u5982\u679c\u6709\u5220\u9664\u7684\u8bdd\uff09\u3002\u4e24\u8005\u7528\u9014\u4e0d\u540c\uff0c\u9700\u8981\u6839\u636e\u9700\u6c42\u6765\u9009\u62e9\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>slice() \u548c splice() \u90fd\u662f JavaScript \u4e2d\u7528\u4e8e\u64cd\u4f5c\u6570\u7ec4\u7684\u65b9\u6cd5\uff0c\u4f46\u5b83\u4eec\u6709\u7740\u4e0d\u540c\u7684\u4f5c\u7528\u3002 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-10195","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=10195"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10195\/revisions"}],"predecessor-version":[{"id":13666,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10195\/revisions\/13666"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10195"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}