{"id":12836,"date":"2023-11-28T23:07:35","date_gmt":"2023-11-28T15:07:35","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=12836"},"modified":"2023-11-29T21:26:42","modified_gmt":"2023-11-29T13:26:42","slug":"javascript-zhong-shen-me-shiasyncawait-ji-qi-ru-he","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/javascript-zhong-shen-me-shiasyncawait-ji-qi-ru-he\/","title":{"rendered":"JavaScript \u4e2d\u4ec0\u4e48\u662f async\/await \u53ca\u5176\u5982\u4f55\u5de5\u4f5c\uff1f"},"content":{"rendered":"<p>async\/await \u662f JavaScript \u4e2d\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u65b0\u7279\u6027\uff0c\u5b83\u5efa\u7acb\u5728 Promise \u7684\u57fa\u7840\u4e0a\uff0c\u65e8\u5728\u7b80\u5316\u5f02\u6b65\u4ee3\u7801\u7684\u7f16\u5199\u548c\u7406\u89e3\u3002<\/p>\n<ul>\n<li>\n<p><strong>async \u51fd\u6570\uff1a<\/strong> \u4f7f\u7528 <code>async<\/code> \u5173\u952e\u5b57\u5b9a\u4e49\u7684\u51fd\u6570\u4f1a\u9690\u5f0f\u8fd4\u56de\u4e00\u4e2a Promise \u5bf9\u8c61\u3002\u5728\u51fd\u6570\u5185\u90e8\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>await<\/code> \u5173\u952e\u5b57\u7b49\u5f85\u4e00\u4e2a Promise \u5bf9\u8c61\u7684\u89e3\u51b3\u6216\u62d2\u7edd\u3002\u8fd9\u4f7f\u5f97\u5f02\u6b65\u4ee3\u7801\u770b\u8d77\u6765\u66f4\u50cf\u540c\u6b65\u4ee3\u7801\uff0c\u6613\u4e8e\u7f16\u5199\u548c\u9605\u8bfb\u3002<\/p>\n<\/li>\n<li>\n<p><strong>await \u8868\u8fbe\u5f0f\uff1a<\/strong> \u5728 <code>async<\/code> \u51fd\u6570\u5185\u90e8\u4f7f\u7528 <code>await<\/code> \u5173\u952e\u5b57\u6765\u7b49\u5f85 Promise \u5bf9\u8c61\u7684\u89e3\u51b3\u3002\u5f53\u4f7f\u7528 <code>await<\/code> \u65f6\uff0c\u51fd\u6570\u6682\u505c\u6267\u884c\uff0c\u76f4\u5230\u7b49\u5f85\u7684 Promise \u5bf9\u8c61\u72b6\u6001\u53d8\u4e3a\u89e3\u51b3\u6216\u62d2\u7edd\u3002\u5982\u679c\u662f\u89e3\u51b3\u72b6\u6001\uff0c<code>await<\/code> \u8868\u8fbe\u5f0f\u8fd4\u56de\u89e3\u51b3\u503c\uff1b\u5982\u679c\u662f\u62d2\u7edd\u72b6\u6001\uff0c\u5219\u629b\u51fa\u76f8\u5e94\u7684\u9519\u8bef\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5de5\u4f5c\u539f\u7406\uff1a<\/p>\n<ol>\n<li>\u5b9a\u4e49\u4e00\u4e2a <code>async<\/code> \u51fd\u6570\u3002<\/li>\n<li>\u5728\u8fd9\u4e2a\u51fd\u6570\u4e2d\uff0c\u4f7f\u7528 <code>await<\/code> \u5173\u952e\u5b57\u7b49\u5f85\u4e00\u4e2a\u8fd4\u56de Promise \u7684\u8868\u8fbe\u5f0f\u3002<\/li>\n<li>\u5f53 <code>await<\/code> \u8868\u8fbe\u5f0f\u6267\u884c\u65f6\uff0c\u51fd\u6570\u4f1a\u6682\u505c\uff0c\u76f4\u5230\u8be5 Promise \u5b8c\u6210\u3002<\/li>\n<li>\u5982\u679c Promise \u5b8c\u6210\u5e76\u8fd4\u56de\u4e86\u503c\uff0c<code>await<\/code> \u8868\u8fbe\u5f0f\u4f1a\u8fd4\u56de\u89e3\u51b3\u503c\u3002<\/li>\n<li>\u5982\u679c Promise \u5931\u8d25\uff0c\u5219 <code>await<\/code> \u8868\u8fbe\u5f0f\u4f1a\u629b\u51fa\u4e00\u4e2a\u9519\u8bef\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u6837\uff0c\u901a\u8fc7 <code>async\/await<\/code>\uff0c\u53ef\u4ee5\u4ee5\u66f4\u6e05\u6670\u3001\u540c\u6b65\u7684\u98ce\u683c\u7f16\u5199\u5f02\u6b65\u4ee3\u7801\uff0c\u63d0\u9ad8\u4e86\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>async\/await \u662f JavaScript \u4e2d\u5904\u7406\u5f02\u6b65\u64cd\u4f5c\u7684\u65b0\u7279\u6027\uff0c\u5b83\u5efa\u7acb\u5728 Promise \u7684\u57fa\u7840\u4e0a\uff0c [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115],"tags":[],"class_list":["post-12836","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=12836"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12836\/revisions"}],"predecessor-version":[{"id":13510,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/12836\/revisions\/13510"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=12836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=12836"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=12836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}