{"id":90691,"date":"2021-10-16T19:15:15","date_gmt":"2021-10-16T11:15:15","guid":{"rendered":"http:\/\/www.zhushiyao.com\/?p=90691"},"modified":"2021-10-16T19:24:31","modified_gmt":"2021-10-16T11:24:31","slug":"javascript-js%e4%b8%ad-%ef%bc%88%e4%b8%89%e4%b8%aa%e7%82%b9%ef%bc%89%e8%bf%90%e7%ae%97%e7%ac%a6","status":"publish","type":"post","link":"http:\/\/www.zhushiyao.com\/?p=90691","title":{"rendered":"javascript js\u4e2d\u7684&#8230;\uff08\u4e09\u4e2a\u70b9\uff09\u8fd0\u7b97\u7b26"},"content":{"rendered":"\n<p> \u4e09\u4e2a\u70b9\uff08&#8230;\uff09\u771f\u540d\u53eb\u6269\u5c55\u8fd0\u7b97\u7b26\uff0c\u662f\u5728ES6\u4e2d\u65b0\u589e\u52a0\u7684\u5185\u5bb9\uff0c\u5b83\u53ef\u4ee5\u5728\u51fd\u6570\u8c03\u7528\/\u6570\u7ec4\u6784\u9020\u65f6\uff0c\u5c06\u6570\u7ec4\u8868\u8fbe\u5f0f\u6216\u8005string\u5728\u8bed\u6cd5\u5c42\u9762\u5c55\u5f00\uff1b\u8fd8\u53ef\u4ee5\u5728\u6784\u9020\u5b57\u9762\u91cf\u5bf9\u8c61\u65f6\u5c06\u5bf9\u8c61\u8868\u8fbe\u5f0f\u6309\u7167key-value\u7684\u65b9\u5f0f\u5c55\u5f00 <\/p>\n\n\n\n<p> \u5b57\u9762\u91cf\u4e00\u822c\u6307[1,2,3]\u6216\u8005{name:&#8217;chuichui&#8217;}\u8fd9\u79cd\u7b80\u6d01\u7684\u6784\u9020\u65b9\u5f0f,\u591a\u5c42\u5d4c\u5957\u7684\u6570\u7ec4\u548c\u5bf9\u8c61\u4e09\u4e2a\u70b9\u5c31\u65e0\u80fd\u4e3a\u529b\u4e86 <\/p>\n\n\n\n<p>\u8bf4\u767d\u4e86\u5c31\u662f\u628a\u8863\u670d\u8131\u4e86\uff0c\u4e0d\u7ba1\u662f\u5927\u62ec\u53f7\uff08[]\uff09\u3001\u82b1\u62ec\u53f7\uff08{}\uff09 <\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\/\/ \u6570\u7ec4\nvar number = [1,2,3,4,5,6]\nconsole.log(...number) \/\/1 2 3 4 5 6\n\/\/\u5bf9\u8c61\nvar man = {name:'chuichui',height:176}\nconsole.log({...man}) \/ {name:'chuichui',height:176}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"item-2-1\">\u590d\u5236\u7528\u5b83<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">\/\/\u6570\u7ec4\u7684\u590d\u5236\nvar arr1 = ['hello']\nvar arr2 =[...arr1]\narr2 \/\/ ['hello']\n\/\/\u5bf9\u8c61\u7684\u590d\u5236\nvar obj1 = {name:'chuichui'}\nvar obj2 ={...arr}\nob12 \/\/  {name:'chuichui'}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"item-2-2\">\u5408\u5e76\u7528\u5b83<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">\/\/\u6570\u7ec4\u7684\u5408\u5e76\nvar arr1 = ['hello']\nvar arr2 =['chuichui']\nvar mergeArr = [...arr1,...arr2]\nmergeArr  \/\/ ['hello','chuichui']\n\/\/ \u5bf9\u8c61\u5206\u5408\u5e76\nvar obj1 = {name:'chuichui'}\nvar obj2 = {height:176}\nvar mergeObj = {...obj1,...obj2}\nmergeObj \/\/ {name: \"chuichui\", height: 176}<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"item-2-3\">\u5b57\u7b26\u8f6c\u6570\u7ec4\u7528\u5b83<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">var arr1 = [...'hello']\narr1 \/\/ [\"h\", \"e\", \"l\", \"l\", \"o\"]<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"item-2-4\">\u51fd\u6570\u4f20\u53c2\u7528\u5b83<\/h3>\n\n\n\n<p>\u53ef\u4ee5\u548c\u6b63\u5e38\u7684\u51fd\u6570\u76f8\u7ed3\u5408\uff0c\u7075\u6d3b\u4f7f\u7528<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">function f(v,w,x,y,z){ }\nvar args = [2,3]\nf(1,...args,4,...[5])<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u5f53\u6211\u4eec\u60f3\u628a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fed\u4ee3\u4e3a\u51fd\u6570\u53c2\u6570\u65f6\uff0c\u7528\u5b83\uff01<\/h3>\n\n\n\n<pre class=\"wp-block-preformatted\">function f(x,y,z){}\nvar args = [1,2,3]\nf(...args)\n\n\/\/ \u4ee5\u524d\u7684\u65b9\u6cd5\nf.apply(null,args);<\/pre>\n\n\n\n<p>\u8f6c\u81ea\uff1ahttps:\/\/segmentfault.com\/a\/1190000021975579<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e09\u4e2a\u70b9\uff08&#8230;\uff09\u771f\u540d\u53eb\u6269\u5c55\u8fd0\u7b97\u7b26\uff0c\u662f\u5728ES6\u4e2d\u65b0\u589e\u52a0\u7684\u5185\u5bb9\uff0c\u5b83\u53ef\u4ee5\u5728\u51fd\u6570\u8c03\u7528\/\u6570\u7ec4\u6784\u9020\u65f6\uff0c\u5c06\u6570\u7ec4\u8868\u8fbe\u5f0f &hellip; 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