ES6 \u6570\u7ec4<\/h1>\n<\/p><\/div>\n

ES6 \u6570\u7ec4<\/h2>\n

\n JavaScript \u4e2d\u7684\u6570\u7ec4 \u662f\u4e00\u4e2a\u88ab\u4f7f\u7528\u7684\u5bf9\u8c61\u8868\u793a\u4e00\u7ec4\u76f8\u4f3c\u7c7b\u578b\u7684\u5143\u7d20\u3002\u5b83\u5141\u8bb8\u60a8\u5728\u5355\u4e2a\u53d8\u91cf\u540d\u79f0\u4e2d\u5b58\u50a8\u591a\u4e2a\u503c\u6216\u4e00\u7ec4\u503c\u3002\u6570\u7ec4\u7528\u4e8e\u6309\u65f6\u95f4\u987a\u5e8f\u5b58\u50a8\u503c\u7684\u96c6\u5408\u3002\u6570\u7ec4\u662f\u540c\u7c7b\u5143\u7d20\u7684\u96c6\u5408\uff0c\u6216\u8005\u6211\u4eec\u53ef\u4ee5\u8bf4\u6570\u7ec4\u662f\u76f8\u540c\u6570\u636e\u7c7b\u578b\u503c\u7684\u96c6\u5408\u3002\n <\/div>\n

\n \u6211\u4eec\u53ef\u4ee5\u5b58\u50a8\u4efb\u4f55\u6709\u6548\u503c\uff0c\u4f8b\u5982\u5bf9\u8c61\u3001\u6570\u5b57\u3001\u5b57\u7b26\u4e32\u3001\u51fd\u6570\u548c\u8fd8\u6709\u5176\u4ed6\u6570\u7ec4\uff0c\u5b83\u4eec\u53ef\u4ee5\u521b\u5efa\u590d\u6742\u7684\u6570\u636e\u7ed3\u6784\uff0c\u4f8b\u5982\u6570\u7ec4\u6570\u7ec4\u6216\u5bf9\u8c61\u6570\u7ec4\u3002\n <\/div>\n

\u8bed\u6cd5<\/h3>\n

\n \u6709\u4e24\u79cd\u58f0\u660e\u65b9\u5f0f\u4e00\u4e2a\u6570\u7ec4\u3002\n <\/div>\n

var <\/span>array_name = new <\/span>Array();  \/\/ By using the new <\/span>keyword<\/span>\nvar <\/span>array_name = [value1, value2,....valueN];  \/\/By using Array literals<\/span>\n                or,\nvar <\/span>array_name;   \/\/Declaration<\/span>\narray_name=[value1, value2,&#x2026;..valueN]; \/\/Initialization<\/span><\/span><\/pre>\n<\/code>\n  <\/div>\n
\n    \u6570\u7ec4\u53c2\u6570\u5305\u542b\u6574\u6570\u548c\u5b57\u7b26\u4e32\u7684\u5217\u8868\u3002\u5efa\u8bae\u4f7f\u7528\u6570\u7ec4\u5b57\u9762\u91cf\u6765\u521b\u5efa\u6570\u7ec4\uff0c\u800c\u4e0d\u662f\u4f7f\u7528new\u5173\u952e\u5b57\u3002\n  <\/div>\n\n    new\u5173\u952e\u5b57\u53ea\u4f1a\u4f7f\u4ee3\u7801\u590d\u6742\u5316\uff0c\u6709\u65f6\u8fd8\u4f1a\u5b83\u4f1a\u4ea7\u751f\u610f\u60f3\u4e0d\u5230\u7684\u7ed3\u679c\u3002\u5982\u679c\u5728\u6570\u7ec4\u7684\u6784\u9020\u51fd\u6570\u4e2d\u6307\u5b9a\u5355\u4e2a\u6570\u503c\u53c2\u6570(\u6216\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u6570\u7ec4)\uff0c\u90a3\u4e48\u5b83\u5c06\u88ab\u89c6\u4e3a\u6570\u7ec4\u7684\u957f\u5ea6\u3002\n  <\/div>\n\n   \u6ce8\u610f: <\/span>\u6570\u7ec4\u5141\u8bb8\u7684\u6700\u5927\u957f\u5ea6\u4e3a 4,294,967,295\u3001\n  <\/div>\n\n    \u5047\u8bbe\u50cfvar num = [1,2,3,4]\u8fd9\u6837\u7684\u58f0\u660e\u4f1a\u7ed9\u4f60\u4e00\u4e2a\u5982\u4e0b\u6240\u793a\u7684\u6570\u7ec4:\n  <\/div>\n\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/h2>\n\n    \u6570\u7ec4\u4ece0\u5f00\u59cb\u7d22\u5f15\u3002\u6570\u7ec4\u540d\u540e\u8ddf\u4e0b\u6807\u7528\u4e8e\u5f15\u7528\u6570\u7ec4\u5143\u7d20\u3002\n  <\/div>\n\u8bed\u6cd5<\/h3>\n\narray_name[subscript];<\/pre>\n<\/code>\n  <\/div>\n
\u793a\u4f8b<\/h3>\n\nvar <\/span>num;\nnum = [2,4,6,8];\nconsole.log<\/span>(num[0]);\nconsole.log<\/span>(num[1]);<\/pre>\n<\/code>\n  <\/div>\n
\n    \u8f93\u51fa\n  <\/div>\n\n2\n4<\/pre>\n<\/code>\n  <\/div>\n
\u6570\u7ec4\u6784\u9020\u51fd\u6570<\/h2>\n\n    \u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6570\u7ec4\u6784\u9020\u51fd\u6570\u6765\u521b\u5efa\u6570\u7ec4\u3002\u6570\u7ec4\u6784\u9020\u51fd\u6570\u53ef\u4ee5\u4f20\u9012\u4e3a:\n  <\/div>\n  \u4ee5\u9017\u53f7\u6216, \u5206\u9694\u7684\u503c\u5217\u8868<\/span>
\n  \u8868\u793a\u6570\u7ec4\u5927\u5c0f\u7684\u6570\u503c<\/span> <\/p>\n
\n    \u4ee5\u4e0b\u793a\u4f8b\u5c06\u5411\u60a8\u5c55\u793a\u76f8\u540c\u7684\u63d2\u56fe:\n  <\/div>\n   <\/p>\n
\u793a\u4f8b-\u5355\u4e2a\u6570\u503c<\/h3>\n\nvar <\/span>num = new <\/span>Array(5); \/\/ this<\/span> single numeric value indicates the size of array.<\/span>\nvar <\/span>i;\nfor(i=0;i<num.length;i++){\nnum[i]=i*5;\nconsole.log<\/span>(num[i]);\n}<\/pre>\n<\/code>\n  <\/div>\n
\n    \u8f93\u51fa\n  <\/div>\n\n0\n5\n10\n15\n20<\/pre>\n<\/code>\n  <\/div>\n
\u793a\u4f8b-\u9017\u53f7\u5206\u9694\u503c<\/h3>\n\nvar <\/span>num = new <\/span>Array(1,2,3,4,5);\nvar <\/span>i;\nfor(i=0;i<num.length;i++){\nconsole.log<\/span>(num[i]);\n}<\/pre>\n<\/code>\n  <\/div>\n
\n    \u8f93\u51fa\n  <\/div>\n\n1\n2\n3\n4\n5<\/pre>\n<\/code>\n  <\/div>\n
JavaScript \u6570\u7ec4<\/h2>\n\n    JavaScript \u652f\u6301\u4ee5\u4e0b\u7c7b\u522b\u7684\u6570\u7ec4\u3002\n  <\/div>\n  \u591a\u7ef4\u6570\u7ec4<\/span>
\n  \u5c06\u6570\u7ec4\u4f20\u9012\u7ed9\u51fd\u6570<\/span>
\n  \u4ece\u51fd\u6570\u8fd4\u56de\u6570\u7ec4<\/span> <\/p>\n
ES6 \u591a\u7ef4\u6570\u7ec4<\/h3>\n\n    ES6 \u4e5f\u652f\u6301\u591a\u7ef4\u6570\u7ec4\u6982\u5ff5\u3002\u591a\u7ef4\u6570\u7ec4\u53ef\u4ee5\u5b9a\u4e49\u4e3a\u5bf9\u5176\u503c\u7684\u53e6\u4e00\u4e2a\u6570\u7ec4\u7684\u6570\u7ec4\u5f15\u7528\u3002\n  <\/div>\n\n    JavaScript \u4e2d\u4e0d\u76f4\u63a5\u63d0\u4f9b\u591a\u7ef4\u6570\u7ec4\u3002\u5982\u679c\u4f60\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u591a\u7ef4\u6570\u7ec4\uff0c\u4f60\u5fc5\u987b\u4f7f\u7528\u4e00\u7ef4\u6570\u7ec4\u6765\u5b8c\u6210\u3002\n  <\/div>\n\n    \u6211\u4eec\u4e5f\u53ef\u4ee5\u8bf4\u4e8c\u7ef4\u6570\u7ec4\u662f\u591a\u7ef4\u6570\u7ec4\u7684\u6700\u7b80\u5355\u5f62\u5f0f\u3002\n  <\/div>\n\n    \u58f0\u660e\n  <\/div>\n\n    \u4ee5\u4e0b\u8bed\u6cd5\u8bf4\u660e\u4e86\u5982\u4f55\u5728 JavaScript \u4e2d\u58f0\u660e\u4e8c\u7ef4\u6570\u7ec4\u3002\n  <\/div>\n\nvar <\/span>array_name = [[value1,value2,value3],[val1,val2,val3]];<\/pre>\n<\/code>\n  <\/div>\n
\n    \u6570\u7ec4\u4e8c\u7ef4\u5143\u7d20\u7684\u8bbf\u95ee\n  <\/div>\n\nvar <\/span>array_name[initial_array_index][referenced_array_index]<\/pre>\n<\/code>\n  <\/div>\n
\n    \u793a\u4f8b\n  <\/div>\n\nvar <\/span>multi = [[2,3,4],[4,9,16]]  \nconsole.log<\/span>(multi[0][0]) \nconsole.log<\/span>(multi[0][1]) \nconsole.log<\/span>(multi[0][2]) \nconsole.log<\/span>(multi[1][0]) \nconsole.log<\/span>(multi[1][1]) \nconsole.log<\/span>(multi[1][2])    <\/pre>\n<\/code>\n  <\/div>\n
\n    \u8f93\u51fa\n  <\/div>\n\n2\n3\n4\n4\n9\n16<\/pre>\n<\/code>\n  <\/div>\n
\u5c06\u6570\u7ec4\u4f20\u9012\u7ed9\u51fd\u6570<\/h3>\n\n    \u5c06\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u60a8\u5fc5\u987b\u6307\u5b9a\u4e0d\u5e26\u62ec\u53f7\u7684\u6570\u7ec4\u540d\u79f0(\u5bf9\u6570\u7ec4\u7684\u5f15\u7528)\u3002\u8ba9\u6211\u4eec\u8bd5\u7740\u7528\u4e0b\u9762\u7684\u4f8b\u5b50\u6765\u7406\u89e3\u5b83\u3002\n  <\/div>\n\n    \u4f8b\u5b50\n  <\/div>\n\nvar <\/span>rainbow = new <\/span>Array[\"Violet\"<\/span>, \"Indigo\"<\/span>, \"Blue\"<\/span>, \"Green\"<\/span>, \"Yellow\"<\/span>, \"Orange\"<\/span>, \"Red\"<\/span>];\nfunction show(rainbow) {    \n   for(var <\/span>i = 0;i<rainbow.length;i++) {            \n      console.log<\/span>(rainbow[i]) \n   } \n} \nshow(rainbow)<\/pre>\n<\/code>\n  <\/div>\n
\n    \u8f93\u51fa\n  <\/div>\n\nViolet\nIndigo\nBlue\nGreen\nYellow\nOrange\nRed<\/pre>\n<\/code>\n  <\/div>\n
\u4ece\u51fd\u6570\u8fd4\u56de\u6570\u7ec4<\/h3>\n\n    \u5b83\u5141\u8bb8\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u6570\u7ec4\u3002\n  <\/div>\n\n    \u793a\u4f8b\n  <\/div>\n\nfunction show() { \n    return new <\/span>Array(\"Blue\"<\/span>, \"Red\"<\/span>, \"Green\"<\/span>, \"Yellow\"<\/span>) \n } \n var <\/span>colors = show() \n for(var <\/span>i in colors) { \n    console.log<\/span>(colors[i])   \n }<\/pre>\n<\/code>\n  <\/div>\n
\n    \u8f93\u51fa\n  <\/div>\n\nBlue\nRed\nGreen\nYellow<\/pre>\n<\/code>\n  <\/div>\n
\u6570\u7ec4\u65b9\u6cd5<\/h2>\n\n    ES6 \u4e2d\u7684\u6570\u7ec4\u65b9\u6cd5\u5bf9\u4e8e\u5904\u7406\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\u7684\u6570\u636e\u5f88\u6709\u7528\u3002\u6570\u7ec4\u65b9\u6cd5\u7528\u4e8e\u901a\u8fc7\u6570\u7ec4\u8f7b\u677e\u6267\u884c\u590d\u6742\u4efb\u52a1\u3002\n  <\/div>\n\n    \u60a8\u53ef\u4ee5\u901a\u8fc7\u5355\u51fb\u6b64\u94fe\u63a5\u4e86\u89e3\u6709\u5173\u6570\u7ec4\u65b9\u6cd5\u7684\u66f4\u591a\u4fe1\u606fES6 \u6570\u7ec4\u65b9\u6cd5\n  <\/div>\n\u89e3\u6784\u8d4b\u503c<\/h2>\n\n    ES6 \u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3a\u89e3\u6784\u8d4b\u503c\u7684\u65b0\u7279\u6027\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u4ece\u5bf9\u8c61\u548c\u6570\u7ec4\u4e2d\u63d0\u53d6\u7279\u5b9a\u9879\u5e76\u4f7f\u7528\u901f\u8bb0\u8bed\u6cd5\u5c06\u5b83\u4eec\u653e\u5165\u53d8\u91cf\u4e2d\u3002\u5b83\u4e0d\u4ec5\u6709\u52a9\u4e8e\u51cf\u5c11\u4ee3\u7801\uff0c\u800c\u4e14\u8fd8\u6539\u53d8\u4e86\u6784\u5efa\u4ee3\u7801\u7684\u65b9\u5f0f\u3002\u5b83\u662f\u7834\u574f\u7ed3\u6784\u7684\u8fc7\u7a0b\u3002\n  <\/div>\n\n    \u89e3\u6784\u8d4b\u503c\u662f\u4e00\u79cd JavaScript \u8868\u8fbe\u5f0f\uff0c\u53ef\u4ee5\u4ece\u6570\u7ec4\u3001\u6620\u5c04\u3001\u96c6\u5408\u4ee5\u53ca\u4e0d\u540c\u53d8\u91cf\u4e2d\u5bf9\u8c61\u7684\u5c5e\u6027\u4e2d\u63d0\u53d6\u6570\u636e\u3002\n  <\/div>\n\u6570\u7ec4\u89e3\u6784<\/h2>\n\n    \u89e3\u6784\u610f\u5473\u7740\u5c06\u590d\u6742\u7684\u7ed3\u6784\u5206\u89e3\u6210\u66f4\u7b80\u5355\u7684\u90e8\u5206\u3002\u4f7f\u7528\u89e3\u6784\u8bed\u6cd5\uff0c\u60a8\u53ef\u4ee5\u4ece\u5bf9\u8c61\u548c\u6570\u7ec4\u4e2d\u63d0\u53d6\u66f4\u5c0f\u7684\u7247\u6bb5\u3002\u5b83\u53ef\u7528\u4e8e\u53d8\u91cf\u7684\u8d4b\u503c\u548c\u58f0\u660e\u3002\n  <\/div>\n\n    \u8981\u4e86\u89e3\u6709\u5173\u6570\u7ec4\u89e3\u6784\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u53ef\u4ee5\u5355\u51fb\u6b64\u94fe\u63a5ES6 \u6570\u7ec4\u89e3\u6784.\n  <\/div>\n\u5bf9\u8c61\u89e3\u6784<\/h2>\n\n    \u5b83\u7c7b\u4f3c\u4e8e\u6570\u7ec4\u89e3\u6784\uff0c\u53ea\u662f\u4e0d\u662f\u4ece\u6570\u7ec4\u4e2d\u53d6\u51fa\u503c\uff0c\u800c\u662f\u5c5e\u6027(\u6216\u952e)\u53ca\u5176\u5bf9\u5e94\u7684\u53ef\u4ee5\u4ece\u5bf9\u8c61\u4e2d\u63d0\u53d6\u503c\u3002\n  <\/div>\n\n    \u8981\u4e86\u89e3\u6709\u5173\u5bf9\u8c61\u89e3\u6784\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u5355\u51fb\u6b64\u94fe\u63a5ES6 \u5bf9\u8c61\u89e3\u6784\u3002\n  <\/div>\n <\/body>
\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"ES6 \u6570\u7ec4zh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[161],"tags":[],"class_list":["post-1916","post","type-post","status-publish","format-standard","hentry","category-es6jc"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/1916"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=1916"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/1916\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=1916"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=1916"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=1916"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}