{"id":333,"date":"2024-12-18T23:50:26","date_gmt":"2024-12-18T15:50:26","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=333"},"modified":"2024-12-18T23:50:26","modified_gmt":"2024-12-18T15:50:26","slug":"%e5%a6%82%e4%bd%95%e6%9c%89%e6%95%88%e7%9a%84%e6%8e%8c%e6%8f%a1javascript%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84%e6%96%b9%e6%b3%95%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2024\/12\/18\/%e5%a6%82%e4%bd%95%e6%9c%89%e6%95%88%e7%9a%84%e6%8e%8c%e6%8f%a1javascript%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84%e6%96%b9%e6%b3%95%ef%bc%9f\/","title":{"rendered":"\u5982\u4f55\u6709\u6548\u7684\u638c\u63e1JavaScript\u4e2d\u7684\u6570\u7ec4\u65b9\u6cd5\uff1f"},"content":{"rendered":"\n
\n

\u638c\u63e1 JavaScript \u4e2d\u7684\u6570\u7ec4\u65b9\u6cd5\uff0c\u5173\u952e\u5728\u4e8e\u7406\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u529f\u80fd\uff0c\u5e76\u901a\u8fc7\u5b9e\u8df5\u52a0\u6df1\u7406\u89e3\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u901a\u4fd7\u6613\u61c2\u7684\u6b65\u9aa4\u548c\u6280\u5de7\uff0c\u5e2e\u52a9\u4f60\u9ad8\u6548\u638c\u63e1\u8fd9\u4e9b\u6570\u7ec4\u65b9\u6cd5\uff1a<\/p>\n<\/blockquote>\n\n\n\n

1. \u7406\u89e3\u5e38\u7528\u6570\u7ec4\u65b9\u6cd5<\/strong><\/h3>\n\n\n\n

\u5148\u4e86\u89e3 JavaScript \u4e2d\u4e00\u4e9b\u5e38\u7528\u7684\u6570\u7ec4\u65b9\u6cd5\u53ca\u5176\u529f\u80fd\uff1a<\/p>\n\n\n\n

    \n
  • push()<\/code><\/strong>\uff1a\u5728\u6570\u7ec4\u7684\u672b\u5c3e\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\u3002<\/li>\n\n\n\n
  • pop()<\/code><\/strong>\uff1a\u4ece\u6570\u7ec4\u7684\u672b\u5c3e\u5220\u9664\u4e00\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u8be5\u5143\u7d20\u3002<\/li>\n\n\n\n
  • shift()<\/code><\/strong>\uff1a\u4ece\u6570\u7ec4\u7684\u5f00\u5934\u5220\u9664\u4e00\u4e2a\u5143\u7d20\uff0c\u5e76\u8fd4\u56de\u8be5\u5143\u7d20\u3002<\/li>\n\n\n\n
  • unshift()<\/code><\/strong>\uff1a\u5728\u6570\u7ec4\u7684\u5f00\u5934\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\u3002<\/li>\n\n\n\n
  • map()<\/code><\/strong>\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u65b0\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u662f\u539f\u6570\u7ec4\u5143\u7d20\u7ecf\u8fc7\u6307\u5b9a\u51fd\u6570\u5904\u7406\u540e\u7684\u7ed3\u679c\u3002<\/li>\n\n\n\n
  • filter()<\/code><\/strong>\uff1a\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5305\u542b\u6240\u6709\u901a\u8fc7\u6d4b\u8bd5\u7684\u5143\u7d20\uff08\u7b26\u5408\u6761\u4ef6\u7684\u5143\u7d20\uff09\u3002<\/li>\n\n\n\n
  • reduce()<\/code><\/strong>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u6307\u5b9a\u64cd\u4f5c\uff0c\u5e76\u5c06\u5176\u7d2f\u79ef\u4e3a\u4e00\u4e2a\u503c\u3002<\/li>\n\n\n\n
  • forEach()<\/code><\/strong>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u4e00\u4e2a\u6307\u5b9a\u7684\u51fd\u6570\uff0c\u4f46\u4e0d\u8fd4\u56de\u65b0\u6570\u7ec4\u3002<\/li>\n\n\n\n
  • find()<\/code><\/strong>\uff1a\u8fd4\u56de\u6570\u7ec4\u4e2d\u7b2c\u4e00\u4e2a\u7b26\u5408\u6761\u4ef6\u7684\u5143\u7d20\u3002<\/li>\n\n\n\n
  • includes()<\/code><\/strong>\uff1a\u68c0\u67e5\u6570\u7ec4\u4e2d\u662f\u5426\u5305\u542b\u67d0\u4e2a\u5143\u7d20\u3002<\/li>\n\n\n\n
  • indexOf()<\/code><\/strong>\uff1a\u8fd4\u56de\u6307\u5b9a\u5143\u7d20\u5728\u6570\u7ec4\u4e2d\u9996\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\uff0c\u6ca1\u6709\u5219\u8fd4\u56de -1\u3002<\/li>\n\n\n\n
  • sort()<\/code><\/strong>\uff1a\u5bf9\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u6392\u5e8f\u3002<\/li>\n\n\n\n
  • reverse()<\/code><\/strong>\uff1a\u5c06\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u987a\u5e8f\u53cd\u8f6c\u3002<\/li>\n<\/ul>\n\n\n\n

    2. \u7406\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u5b9e\u9645\u7528\u9014<\/strong><\/h3>\n\n\n\n

    \u901a\u8fc7\u793a\u4f8b\u6765\u7406\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u5b9e\u9645\u5e94\u7528\uff0c\u8fd9\u4f1a\u8ba9\u4f60\u66f4\u5bb9\u6613\u8bb0\u4f4f\u5b83\u4eec\u3002<\/p>\n\n\n\n

      \n
    • push()<\/code> \u548c pop()<\/code> \u793a\u4f8b<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
        let arr = [1, 2, 3];\n  arr.push(4); \/\/ [1, 2, 3, 4]\n  arr.pop(); \/\/ 4\uff0carr \u53d8\u4e3a [1, 2, 3]<\/code><\/pre>\n\n\n\n
        \n
      • map()<\/code> \u793a\u4f8b<\/strong>\uff1a map()<\/code> \u65b9\u6cd5\u7528\u6765\u5bf9\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u6267\u884c\u4e00\u4e2a\u51fd\u6570\uff0c\u5e76\u8fd4\u56de\u65b0\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n\n\n\n
          let arr = [1, 2, 3];\n  let result = arr.map(x => x * 2); \/\/ [2, 4, 6]<\/code><\/pre>\n\n\n\n
          \n
        • filter()<\/code> \u793a\u4f8b<\/strong>\uff1a filter()<\/code> \u65b9\u6cd5\u7528\u6765\u7b5b\u9009\u51fa\u7b26\u5408\u6761\u4ef6\u7684\u5143\u7d20\uff0c\u8fd4\u56de\u4e00\u4e2a\u65b0\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n\n\n\n
            let arr = [1, 2, 3, 4, 5];\n  let result = arr.filter(x => x > 2); \/\/ [3, 4, 5]<\/code><\/pre>\n\n\n\n
          3. \u5206\u7ec4\u8bb0\u5fc6<\/strong><\/h3>\n\n\n\n
          \u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u548c\u8bb0\u4f4f\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u628a\u5b83\u4eec\u5206\u6210\u51e0\u7ec4\uff1a<\/p>\n\n\n\n
            \n
          • \u6570\u7ec4\u4fee\u6539\u65b9\u6cd5<\/strong>\uff08push()<\/code>, pop()<\/code>, shift()<\/code>, unshift()<\/code>\uff09\uff1a\u8fd9\u4e9b\u65b9\u6cd5\u7528\u4e8e\u4fee\u6539\u6570\u7ec4\u3002<\/li>\n\n\n\n
          • \u904d\u5386\u548c\u67e5\u8be2\u65b9\u6cd5<\/strong>\uff08map()<\/code>, filter()<\/code>, forEach()<\/code>, find()<\/code>\uff09\uff1a\u8fd9\u4e9b\u65b9\u6cd5\u7528\u4e8e\u904d\u5386\u6570\u7ec4\u5e76\u6267\u884c\u64cd\u4f5c\u3002<\/li>\n\n\n\n
          • \u68c0\u67e5\u65b9\u6cd5<\/strong>\uff08includes()<\/code>, indexOf()<\/code>\uff09\uff1a\u8fd9\u4e9b\u65b9\u6cd5\u7528\u4e8e\u68c0\u67e5\u6570\u7ec4\u4e2d\u662f\u5426\u5305\u542b\u67d0\u4e2a\u5143\u7d20\u3002<\/li>\n\n\n\n
          • \u6392\u5e8f\u548c\u53cd\u8f6c\u65b9\u6cd5<\/strong>\uff08sort()<\/code>, reverse()<\/code>\uff09\uff1a\u8fd9\u4e9b\u65b9\u6cd5\u7528\u4e8e\u6539\u53d8\u6570\u7ec4\u7684\u987a\u5e8f\u3002<\/li>\n<\/ul>\n\n\n\n
            4. \u5b9e\u8df5\u4e0e\u7ec3\u4e60<\/strong><\/h3>\n\n\n\n
            \u5b9e\u8df5\u662f\u6700\u597d\u7684\u5b66\u4e60\u65b9\u5f0f\u3002\u5c1d\u8bd5\u89e3\u51b3\u4e00\u4e9b\u5b9e\u9645\u95ee\u9898\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n
              \n
            • \u7528 map()<\/code> \u5904\u7406\u6570\u636e\uff0c\u63d0\u53d6\u6570\u7ec4\u4e2d\u7684\u67d0\u4e00\u5217\u3002<\/li>\n\n\n\n
            • \u7528 filter()<\/code> \u7b5b\u9009\u51fa\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u5143\u7d20\u3002<\/li>\n\n\n\n
            • \u7528 reduce()<\/code> \u5b9e\u73b0\u6570\u7ec4\u6c42\u548c\u6216\u8005\u8ba1\u7b97\u5e73\u5747\u503c\u3002<\/li>\n<\/ul>\n\n\n\n
              5. \u603b\u7ed3<\/strong><\/h3>\n\n\n\n
                \n
              • \u7406\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u529f\u80fd\u548c\u4f7f\u7528\u573a\u666f<\/strong>\u3002<\/li>\n\n\n\n
              • \u901a\u8fc7\u5b9e\u9645\u7f16\u7801\u6765\u5de9\u56fa\u7406\u89e3<\/strong>\uff0c\u81ea\u5df1\u7f16\u5199\u4ee3\u7801\u5e76\u8c03\u8bd5\uff0c\u9047\u5230\u95ee\u9898\u65f6\u67e5\u9605\u6587\u6863\u3002<\/li>\n\n\n\n
              • \u4e0d\u8981\u6b7b\u8bb0\u786c\u80cc<\/strong>\uff0c\u800c\u662f\u591a\u505a\u7ec3\u4e60\uff0c\u901a\u8fc7\u89e3\u51b3\u5b9e\u9645\u95ee\u9898\u6765\u638c\u63e1\u6570\u7ec4\u65b9\u6cd5\u7684\u5e94\u7528\u3002<\/li>\n<\/ul>\n\n\n\n
                \u638c\u63e1 JavaScript \u6570\u7ec4\u65b9\u6cd5\u5e76\u4e0d\u96be\uff0c\u53ea\u8981\u4f60\u591a\u505a\u7ec3\u4e60\uff0c\u5e76\u7406\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u5b9e\u9645\u7528\u9014\u3002\u901a\u8fc7\u4e0d\u65ad\u7ec3\u4e60\uff0c\u4f60\u4f1a\u9010\u6e10\u6210\u4e3a\u719f\u7ec3\u7684 JavaScript \u5f00\u53d1\u8005\u3002<\/p>\n\n\n\n
                \u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
                \u638c\u63e1 JavaScript \u4e2d\u7684\u6570\u7ec4\u65b9\u6cd5\uff0c\u5173\u952e\u5728\u4e8e\u7406\u89e3\u6bcf\u4e2a\u65b9\u6cd5\u7684\u529f\u80fd\uff0c\u5e76\u901a\u8fc7\u5b9e\u8df5\u52a0\u6df1\u7406\u89e3\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u901a\u4fd7\u6613\u61c2\u7684 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-333","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=333"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/333\/revisions"}],"predecessor-version":[{"id":334,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/333\/revisions\/334"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}