{"id":5028,"date":"2023-01-05T11:41:12","date_gmt":"2023-01-05T03:41:12","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5028"},"modified":"2023-01-05T11:41:12","modified_gmt":"2023-01-05T03:41:12","slug":"%e5%ad%b8%e7%bf%92typescript%e4%b8%ad%e6%95%b8%e7%b5%84%e7%9a%84%e5%b8%b8%e7%94%a8%e5%b1%ac%e6%80%a7","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92typescript%e4%b8%ad%e6%95%b8%e7%b5%84%e7%9a%84%e5%b8%b8%e7%94%a8%e5%b1%ac%e6%80%a7\/","title":{"rendered":"\u5b78\u7fd2TypeScript\u4e2d\u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u6578\u7d44, \u5e38\u7528\u5c6c\u6027, Array Properties\"><\/p>\n<h1>TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027(Array Properties)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u64c1\u6709\u66f4\u591a\u7684\u529f\u80fd\uff0c\u5176\u4e2d\u5305\u62ec\u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39 TypeScript \u4e2d\u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u5011\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff1f<\/h2>\n<p>TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\u662f TypeScript \u4e2d\u7684\u4e00\u7a2e\u7279\u6b8a\u5c6c\u6027\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u64cd\u4f5c\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u3002\u5b83\u5011\u53ef\u4ee5\u7528\u4f86\u67e5\u627e\u3001\u6dfb\u52a0\u3001\u522a\u9664\u3001\u6392\u5e8f\u7b49\u64cd\u4f5c\u3002<\/p>\n<h2>TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\u6709\u54ea\u4e9b\uff1f<\/h2>\n<p>TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n<ul>\n<li><strong>length<\/strong>\uff1a\u7528\u65bc\u53d6\u5f97\u6578\u7d44\u4e2d\u5143\u7d20\u7684\u6578\u91cf\u3002<\/li>\n<li><strong>push()<\/strong>\uff1a\u7528\u65bc\u5f80\u6578\u7d44\u4e2d\u6dfb\u52a0\u5143\u7d20\u3002<\/li>\n<li><strong>pop()<\/strong>\uff1a\u7528\u65bc\u5f9e\u6578\u7d44\u4e2d\u522a\u9664\u6700\u5f8c\u4e00\u500b\u5143\u7d20\u3002<\/li>\n<li><strong>shift()<\/strong>\uff1a\u7528\u65bc\u5f9e\u6578\u7d44\u4e2d\u522a\u9664\u7b2c\u4e00\u500b\u5143\u7d20\u3002<\/li>\n<li><strong>unshift()<\/strong>\uff1a\u7528\u65bc\u5f80\u6578\u7d44\u4e2d\u6dfb\u52a0\u7b2c\u4e00\u500b\u5143\u7d20\u3002<\/li>\n<li><strong>sort()<\/strong>\uff1a\u7528\u65bc\u5c0d\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u9032\u884c\u6392\u5e8f\u3002<\/li>\n<li><strong>reverse()<\/strong>\uff1a\u7528\u65bc\u5c0d\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u9032\u884c\u53cd\u8f49\u3002<\/li>\n<li><strong>indexOf()<\/strong>\uff1a\u7528\u65bc\u67e5\u627e\u6578\u7d44\u4e2d\u6307\u5b9a\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/li>\n<li><strong>splice()<\/strong>\uff1a\u7528\u65bc\u5f9e\u6578\u7d44\u4e2d\u522a\u9664\u6307\u5b9a\u7d22\u5f15\u7684\u5143\u7d20\u3002<\/li>\n<li><strong>concat()<\/strong>\uff1a\u7528\u65bc\u5c07\u5169\u500b\u6578\u7d44\u5408\u4f75\u70ba\u4e00\u500b\u6578\u7d44\u3002<\/li>\n<\/ul>\n<p><!--more--><\/p>\n<h2>\u5982\u4f55\u4f7f\u7528 TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff1f<\/h2>\n<p>\u4e0b\u9762\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff1a<\/p>\n<h3>length \u5c6c\u6027<\/h3>\n<p>length \u5c6c\u6027\u53ef\u4ee5\u7528\u65bc\u53d6\u5f97\u6578\u7d44\u4e2d\u5143\u7d20\u7684\u6578\u91cf\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\nconsole.log(arr.length); \/\/ 5\n<\/pre>\n<h3>push() \u65b9\u6cd5<\/h3>\n<p>push() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5f80\u6578\u7d44\u4e2d\u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\narr.push(6);\nconsole.log(arr); \/\/ [1, 2, 3, 4, 5, 6]\n<\/pre>\n<h3>pop() \u65b9\u6cd5<\/h3>\n<p>pop() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5f9e\u6578\u7d44\u4e2d\u522a\u9664\u6700\u5f8c\u4e00\u500b\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\narr.pop();\nconsole.log(arr); \/\/ [1, 2, 3, 4]\n<\/pre>\n<h3>shift() \u65b9\u6cd5<\/h3>\n<p>shift() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5f9e\u6578\u7d44\u4e2d\u522a\u9664\u7b2c\u4e00\u500b\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\narr.shift();\nconsole.log(arr); \/\/ [2, 3, 4, 5]\n<\/pre>\n<h3>unshift() \u65b9\u6cd5<\/h3>\n<p>unshift() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5f80\u6578\u7d44\u4e2d\u6dfb\u52a0\u7b2c\u4e00\u500b\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\narr.unshift(0);\nconsole.log(arr); \/\/ [0, 1, 2, 3, 4, 5]\n<\/pre>\n<h3>sort() \u65b9\u6cd5<\/h3>\n<p>sort() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5c0d\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u9032\u884c\u6392\u5e8f\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [3, 5, 1, 4, 2];\narr.sort();\nconsole.log(arr); \/\/ [1, 2, 3, 4, 5]\n<\/pre>\n<h3>reverse() \u65b9\u6cd5<\/h3>\n<p>reverse() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5c0d\u6578\u7d44\u4e2d\u7684\u5143\u7d20\u9032\u884c\u53cd\u8f49\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\narr.reverse();\nconsole.log(arr); \/\/ [5, 4, 3, 2, 1]\n<\/pre>\n<h3>indexOf() \u65b9\u6cd5<\/h3>\n<p>indexOf() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u67e5\u627e\u6578\u7d44\u4e2d\u6307\u5b9a\u5143\u7d20\u7684\u7d22\u5f15\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\nconsole.log(arr.indexOf(3)); \/\/ 2\n<\/pre>\n<h3>splice() \u65b9\u6cd5<\/h3>\n<p>splice() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5f9e\u6578\u7d44\u4e2d\u522a\u9664\u6307\u5b9a\u7d22\u5f15\u7684\u5143\u7d20\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr = [1, 2, 3, 4, 5];\narr.splice(2, 1);\nconsole.log(arr); \/\/ [1, 2, 4, 5]\n<\/pre>\n<h3>concat() \u65b9\u6cd5<\/h3>\n<p>concat() \u65b9\u6cd5\u53ef\u4ee5\u7528\u65bc\u5c07\u5169\u500b\u6578\u7d44\u5408\u4f75\u70ba\u4e00\u500b\u6578\u7d44\uff1a<\/p>\n<pre class=\"brush: typescript\">\nlet arr1 = [1, 2, 3];\nlet arr2 = [4, 5, 6];\nlet arr3 = arr1.concat(arr2);\nconsole.log(arr3); \/\/ [1, 2, 3, 4, 5, 6]\n<\/pre>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86 TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u5011\u3002TypeScript \u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\u53ef\u4ee5\u7528\u65bc\u67e5\u627e\u3001\u6dfb\u52a0\u3001\u522a\u9664\u3001\u6392\u5e8f\u7b49\u64cd\u4f5c\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u958b\u767c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39TypeScript\u4e2d\u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff0c\u5305\u62eclength\u3001concat\u3001push\u3001pop\u3001shift\u3001unshift\u3001slice\u3001splice\u7b49\uff0c\u8b93\u8b80\u8005\u80fd\u5920\u66f4\u52a0\u719f\u6089TypeScript\u4e2d\u6578\u7d44\u7684\u5e38\u7528\u5c6c\u6027\uff0c\u4e26\u61c9\u7528\u65bc\u5be6\u969b\u958b\u767c\u4e2d\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-5028","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\/pcFK27-1j6","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5028","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=5028"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5028\/revisions"}],"predecessor-version":[{"id":5029,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5028\/revisions\/5029"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}