{"id":606,"date":"2023-12-30T18:01:01","date_gmt":"2023-12-30T10:01:01","guid":{"rendered":""},"modified":"2023-12-30T18:01:01","modified_gmt":"2023-12-30T10:01:01","slug":"\u4e24\u7c7b\u6570\u7ec4\u53bb\u91cd\u65b9\u6cd5","status":"publish","type":"post","link":"https:\/\/mushiming.com\/606.html","title":{"rendered":"\u4e24\u7c7b\u6570\u7ec4\u53bb\u91cd\u65b9\u6cd5"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h3>\u7b80\u5355\u53bb\u91cd\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528ES6\u8bed\u53e5\u3002<\/h3>\n<p><code>var newArr = Array.from(new Set(arr))<\/code><\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-js\">\ud83c\udf30\uff1a\n<span class=\"token keyword\">var<\/span> arr <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span>\narr <span class=\"token operator\">=<\/span> Array<span class=\"token punctuation\">.<\/span><span class=\"token function\">from<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Set<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\t<span class=\"token comment\">\/\/ arr = [1, 2, 3]<\/span>\n<\/code><\/pre>\n<h3>\u5982\u679c\u9700\u8981\u5bf9 \u6570\u7ec4\u5bf9\u8c61\u4e2d\u67d0\u4e00\u6807\u8bc6\u7b26\u53bb\u91cd\u3002<\/h3>\n<pre><code class=\"prism language-js\"><span class=\"token comment\">\/\/ \u6839\u636e\u67d0\u4e2a\u5b57\u6bb5\u6765\u5bf9\u6570\u7ec4\u8fdb\u884c\u8fc7\u6ee4<\/span>\n<span class=\"token function\">unique<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">arr<span class=\"token punctuation\">,<\/span> field<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t<span class=\"token keyword\">const<\/span> res <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Map<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5b9a\u4e49\u5e38\u91cf res, \u503c\u4e3a\u4e00\u4e2aMap\u5bf9\u8c61\u5b9e\u4f8b<\/span>\n\t<span class=\"token comment\">\/\/ \u8fd4\u56dearr\u6570\u7ec4\u8fc7\u6ee4\u540e\u7684\u7ed3\u679c\uff0c\u7ed3\u679c\u4e3a\u4e00\u4e2a\u6570\u7ec4; \u8fc7\u6ee4\u6761\u4ef6\u662f\uff0c\u5982\u679cres\u4e2d\u6ca1\u6709\u67d0\u4e2a\u952e\uff0c\u5c31\u8bbe\u7f6e\u8fd9\u4e2a\u952e\u7684\u503c\u4e3a1<\/span>\n\t<span class=\"token keyword\">return<\/span> arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">filter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">arr<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">=&gt;<\/span> <span class=\"token operator\">!<\/span>res<span class=\"token punctuation\">.<\/span><span class=\"token function\">has<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">[<\/span>field<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&amp;&amp;<\/span> res<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">[<\/span>field<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u4f7f\u7528\uff1a<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-js\"><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>arr <span class=\"token operator\">=<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">unique<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>arr<span class=\"token punctuation\">,<\/span> id<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u4e24\u7c7b\u6570\u7ec4\u53bb\u91cd\u65b9\u6cd5\u7531\u4e8e\u5728vue\u4e2d\uff0c\u4f1a\u81ea\u52a8\u5728\u6570\u7ec4\u548c\u5bf9\u8c61\u4e2d\u52a0\u5165_obser__\u89c2\u5bdf\u8005\u6a21\u5f0f\u7684\u4e00\u4e9b\u5c5e\u6027\uff0c\u6240\u4ee5\u76f4\u63a5\u7528\u6570\u7ec4\u7684filter\u53bb\u91cd\uff08\u4e0b\u9762\u8fd9...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/606"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=606"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/606\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=606"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=606"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}