{"id":5587,"date":"2023-01-06T09:49:57","date_gmt":"2023-01-06T01:49:57","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5587"},"modified":"2023-01-06T09:49:57","modified_gmt":"2023-01-06T01:49:57","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8react-js%e4%b8%ad%e7%9a%84lastindexof%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/react-js\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e5%88%a9%e7%94%a8react-js%e4%b8%ad%e7%9a%84lastindexof%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u5229\u7528React.JS\u4e2d\u7684lastIndexOf\u51fd\u6578"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"React.JS, lastIndexOf\"><\/p>\n<h2>\u5229\u7528 React.JS \u4e2d\u7684 lastIndexOf \u529f\u80fd<\/h2>\n<p>React.JS \u662f\u4e00\u500b\u7528\u65bc\u69cb\u5efa\u7528\u6236\u754c\u9762\u7684 JavaScript \u51fd\u5f0f\u5eab\uff0c\u5b83\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u3002\u5176\u4e2d\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\u5c31\u662f lastIndexOf\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u641c\u5c0b\u5b57\u4e32\u4e2d\u6307\u5b9a\u5b57\u5143\u7684\u6700\u5f8c\u4e00\u500b\u51fa\u73fe\u4f4d\u7f6e\u3002<\/p>\n<p><!--more--><\/p>\n<p>lastIndexOf \u662f\u4e00\u500b\u5f88\u6709\u7528\u7684\u51fd\u5f0f\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u641c\u5c0b\u5b57\u4e32\u4e2d\u6307\u5b9a\u5b57\u5143\u7684\u6700\u5f8c\u4e00\u500b\u51fa\u73fe\u4f4d\u7f6e\u3002\u8209\u500b\u4f8b\u5b50\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u5b57\u4e32 &#8220;Hello World&#8221;\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 lastIndexOf \u4f86\u641c\u5c0b\u5b57\u4e32\u4e2d\u6700\u5f8c\u4e00\u500b\u51fa\u73fe\u7684 &#8220;o&#8221; \u5b57\u5143\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet str = \"Hello World\";\nlet lastIndex = str.lastIndexOf(\"o\");\nconsole.log(lastIndex); \/\/ 8\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u5728\u63a7\u5236\u53f0\u8f38\u51fa 8\uff0c\u8868\u793a &#8220;o&#8221; \u5b57\u5143\u5728\u5b57\u4e32\u4e2d\u6700\u5f8c\u4e00\u6b21\u51fa\u73fe\u7684\u4f4d\u7f6e\u662f 8\u3002<\/p>\n<p>lastIndexOf \u4e5f\u53ef\u4ee5\u63a5\u53d7\u7b2c\u4e8c\u500b\u53c3\u6578\uff0c\u8868\u793a\u641c\u5c0b\u7684\u8d77\u59cb\u4f4d\u7f6e\uff1a<\/p>\n<pre class=\"brush: javascript\">\nlet str = \"Hello World\";\nlet lastIndex = str.lastIndexOf(\"o\", 5);\nconsole.log(lastIndex); \/\/ 4\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u5728\u63a7\u5236\u53f0\u8f38\u51fa 4\uff0c\u8868\u793a &#8220;o&#8221; \u5b57\u5143\u5728\u5b57\u4e32\u4e2d\u6700\u5f8c\u4e00\u6b21\u51fa\u73fe\u7684\u4f4d\u7f6e\u662f 4\uff0c\u800c\u4e0d\u662f 8\uff0c\u56e0\u70ba\u6211\u5011\u6307\u5b9a\u4e86\u641c\u5c0b\u7684\u8d77\u59cb\u4f4d\u7f6e\u70ba 5\u3002<\/p>\n<p>lastIndexOf \u662f React.JS \u4e2d\u4e00\u500b\u5f88\u6709\u7528\u7684\u51fd\u5f0f\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u641c\u5c0b\u5b57\u4e32\u4e2d\u6307\u5b9a\u5b57\u5143\u7684\u6700\u5f8c\u4e00\u500b\u51fa\u73fe\u4f4d\u7f6e\uff0c\u53ef\u4ee5\u8b93\u958b\u767c\u8005\u66f4\u8f15\u9b06\u5730\u69cb\u5efa\u9ad8\u6027\u80fd\u7684\u7db2\u9801\u61c9\u7528\u7a0b\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39React.JS\u4e2d\u7684lastIndexOf\u51fd\u6578\uff0c\u8a73\u7d30\u89e3\u91cb\u5b83\u7684\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\uff0c\u4ee5\u5e6b\u52a9\u5b78\u751f\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u5b83\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":[184,183],"tags":[182,181],"class_list":["post-5587","post","type-post","status-publish","format-standard","hentry","category-react","category-react-js","tag-react","tag-react-js"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1s7","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5587","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=5587"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5587\/revisions"}],"predecessor-version":[{"id":5588,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5587\/revisions\/5588"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5587"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5587"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5587"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}