{"id":5038,"date":"2023-01-05T11:43:02","date_gmt":"2023-01-05T03:43:02","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5038"},"modified":"2023-01-05T11:43:02","modified_gmt":"2023-01-05T03:43:02","slug":"%e4%ba%86%e8%a7%a3typescript%e4%b8%ad%e6%95%b8%e7%b5%84%e7%9a%84%e9%9d%9c%e6%85%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e4%ba%86%e8%a7%a3typescript%e4%b8%ad%e6%95%b8%e7%b5%84%e7%9a%84%e9%9d%9c%e6%85%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u4e86\u89e3TypeScript\u4e2d\u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5"},"content":{"rendered":"

<\/p>\n

TypeScript \u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5(Array Static Methods)<\/h1>\n

TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7279\u6027\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u958b\u767c\u51fa\u66f4\u512a\u8cea\u7684\u7a0b\u5f0f\u78bc\u3002\u5176\u4e2d\u4e00\u500b\u7279\u6027\u5c31\u662f\u652f\u63f4\u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u64cd\u4f5c\u6578\u7d44\u3002<\/p>\n

<\/p>\n

\u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5\u662f\u6307\u53ef\u4ee5\u76f4\u63a5\u5728\u985e\u5225\u4e0a\u547c\u53eb\u7684\u65b9\u6cd5\uff0c\u800c\u4e0d\u9700\u8981\u5148\u5efa\u7acb\u7269\u4ef6\uff0c\u4f8b\u5982 Array.from()<\/span> \u5c31\u662f\u4e00\u500b\u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c07\u4e00\u500b\u53ef\u8fed\u4ee3\u7684\u7269\u4ef6\u8f49\u63db\u6210\u6578\u7d44\uff1a<\/p>\n

\nlet array = Array.from('Hello World');\nconsole.log(array); \/\/ ['H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd']\n<\/pre>\n
\u53e6\u5916\uff0cArray.isArray()<\/span> \u5247\u662f\u7528\u4f86\u5224\u65b7\u4e00\u500b\u7269\u4ef6\u662f\u5426\u70ba\u6578\u7d44\uff1a<\/p>\n
\nlet array = [1, 2, 3];\nconsole.log(Array.isArray(array)); \/\/ true\n<\/pre>\n
\u9664\u4e86\u4e0a\u8ff0\u5169\u500b\u65b9\u6cd5\u4e4b\u5916\uff0cTypeScript \u9084\u63d0\u4f9b\u4e86\u8a31\u591a\u5176\u4ed6\u7684\u6578\u7d44\u975c\u614b\u65b9\u6cd5\uff0c\u4f8b\u5982 Array.prototype.concat()<\/span> \u53ef\u4ee5\u5c07\u5169\u500b\u6578\u7d44\u5408\u4f75\u6210\u4e00\u500b\u65b0\u7684\u6578\u7d44\uff1a<\/p>\n
\nlet array1 = [1, 2, 3];\nlet array2 = [4, 5, 6];\nlet array3 = array1.concat(array2);\nconsole.log(array3); \/\/ [1, 2, 3, 4, 5, 6]\n<\/pre>\n
\u53e6\u5916\uff0cArray.prototype.filter()<\/span> \u5247\u662f\u7528\u4f86\u7be9\u9078\u6578\u7d44\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n
\nlet array = [1, 2, 3, 4, 5, 6];\nlet evenNumbers = array.filter(x => x % 2 == 0);\nconsole.log(evenNumbers); \/\/ [2, 4, 6]\n<\/pre>\n
\u6700\u5f8c\uff0cArray.prototype.map()<\/span> \u5247\u662f\u7528\u4f86\u5c0d\u6578\u7d44\u4e2d\u7684\u6bcf\u500b\u5143\u7d20\u57f7\u884c\u67d0\u500b\u51fd\u5f0f\uff1a<\/p>\n
\nlet array = [1, 2, 3, 4, 5, 6];\nlet doubleNumbers = array.map(x => x * 2);\nconsole.log(doubleNumbers); \/\/ [2, 4, 6, 8, 10, 12]\n<\/pre>\n
\u7e3d\u7d50\u4f86\u8aaa\uff0cTypeScript \u63d0\u4f9b\u4e86\u8a31\u591a\u6709\u7528\u7684\u6578\u7d44\u975c\u614b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u5bb9\u6613\u5730\u64cd\u4f5c\u6578\u7d44\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6458\u8981(Description):\u4e86\u89e3TypeScript\u4e2d\u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528\u5b83\u5011\u4f86\u64cd\u4f5c\u6578\u7d44\uff0c\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002\u672c\u6587\u5c07\u4ecb\u7d39TypeScript\u4e2d\u6578\u7d44\u7684\u975c\u614b\u65b9\u6cd5\uff0c\u5305\u62ecconcat()\u3001every()\u3001filter()\u3001find()\u3001forEach()\u3001map()\u3001reduce()\u3001slice()\u3001sort()\u7b49\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[187],"tags":[186],"class_list":["post-5038","post","type-post","status-publish","format-standard","hentry","category-typescript","tag-typescript"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1jg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5038","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=5038"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5038\/revisions"}],"predecessor-version":[{"id":5039,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5038\/revisions\/5039"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}