{"id":460,"date":"2018-02-25T22:55:28","date_gmt":"2018-02-25T14:55:28","guid":{"rendered":"http:\/\/blog.sway.com.cn\/?p=460"},"modified":"2018-02-25T22:55:28","modified_gmt":"2018-02-25T14:55:28","slug":"javascript%e8%b0%83%e7%94%a8angularjs%e7%9a%84%e5%87%bd%e6%95%b0scope%e5%8f%98%e9%87%8f","status":"publish","type":"post","link":"http:\/\/blog.sway.com.cn\/?p=460","title":{"rendered":"JavaScript\u8c03\u7528AngularJS\u7684\u51fd\u6570\/$scope\/\u53d8\u91cf"},"content":{"rendered":"<p>\u4f7f\u7528\u80cc\u666f\uff1a<\/p>\n<p>\u9700\u8981\u5728\u5176\u4ed6JavaScript\u6587\u4ef6\u4e2d\u8c03\u7528AngularJS\u5185\u90e8\u65b9\u6cd5\u6216\u6539\u53d8$scope\u53d8\u91cf\uff0c\u540c\u65f6\u8fd8\u8981\u4fdd\u6301\u53cc\u5411\u6570\u636e\u7ed1\u5b9a\uff1b<\/p>\n<p>\u9996\u5148\u83b7\u53d6AngularJS application\uff1a<\/p>\n<p>\u65b9\u6cd5\u4e00\uff1a\u901a\u8fc7controller\u6765\u83b7\u53d6app<\/p>\n<pre class=\"lang:default decode:true \">var appElement = document.querySelector('[ng-controller=mainController]');<\/pre>\n<p>\u7136\u540e\u5728\u83b7\u53d6$scope\u53d8\u91cf\uff1a<\/p>\n<pre class=\"lang:js decode:true \">var $scope = angular.element(appElement).scope();<\/pre>\n<p>\u5982\u679c\u6539\u53d8\u4e86\u5176\u4e2d\u7684\u53d8\u91cf\u4e4b\u540e\uff0c\u9700\u8981\u5728\u9875\u9762\u8868\u73b0\u51fa\u6765\uff0c\u8fd8\u9700\u8981\u8c03\u7528apply()\u65b9\u6cd5\uff1a<\/p>\n<pre class=\"lang:default decode:true \">$scope.$apply();\r\n<\/pre>\n<p>\u65b9\u6cd5\u4e8c\uff1a\u901a\u8fc7DOM\u64cd\u4f5c\u83b7\u53d6app<\/p>\n<pre class=\"lang:default decode:true\">\/\/\u901a\u8fc7DOM\u64cd\u4f5c\u83b7\u53d6app\u5bf9\u8c61\r\nvar element = angular.element($document.getElementById(\"app\"));\r\n\/\/\u5f97\u5230app\u5bf9\u8c61\uff0c\u53ef\u4ee5\u83b7\u53d6app\u7684controller\r\nvar controller = element.controller();\r\n\/\/\u5f97\u5230app\u5bf9\u8c61\uff0c\u53ef\u4ee5\u83b7\u53d6app\u7684$scope\r\nvar scope = element.scope();\r\n\/\/\u8c03\u7528$scope\u4e2d\u7684\u65b9\u6cd5\r\nscope.sub1();\r\n\/\/\u8c03\u7528\u65b9\u6cd5\u540e\uff0c\u53ef\u4ee5\u91cd\u65b0\u7ed1\u5b9a\uff0c\u5728\u9875\u9762\u540c\u6b65\uff08\u53ef\u9009\uff09\r\nscope.$apply();\r\n\/\/\u8c03\u7528\u5b57\u6bb5\r\nscope.field1;<\/pre>\n<p>\u51e0\u4e2a\u76f8\u5173\u51fd\u6570\uff1a<\/p>\n<p>\u83b7\u53d6\u5f53\u524d\u5143\u7d20\u7684$socpe:\u00a0\u00a0\u00a0\u00a0 angular.element(domElement).scope() to get the current scope for the element<br \/>\n\u83b7\u53d6\u5f53\u524dapp\u7684injector\uff1a\u00a0\u00a0 angular.element(domElement).injector() to get the current app injector<br \/>\n\u83b7\u53d6\u5f53\u524d\u5143\u7d20\u7684controller\uff1aangular.element(domElement).controller() to get a hold of the ng-controller instance.<\/p>\n<p>\u53c2\u8003\u6587\u7ae0\uff1a<\/p>\n<p>http:\/\/segmentfault.com\/a\/1190000000747708<\/p>\n<p>http:\/\/longqiang.name\/2014\/12\/13\/%E5%A4%96%E9%83%A8js%E8%B0%83%E7%94%A8angularjs%E5%86%85%E9%83%A8%E6%96%B9%E6%B3%95\/<\/p>\n<p>\u4f5c\u8005\uff1a <a href=\"http:\/\/www.cnblogs.com\/CheeseZH\/\" target=\"_blank\">ZH\u5976\u916a\u2014\u2014\u5f20\u8d3a <\/a><br \/>\nQ Q\uff1a <a href=\"http:\/\/www.cnblogs.com\/CheeseZH\/\" target=\"_blank\">1203456195 <\/a><br \/>\n\u90ae\u7bb1\uff1a <a href=\"http:\/\/www.cnblogs.com\/CheeseZH\/\" target=\"_blank\">cheesezh@163.com <\/a><br \/>\n\u51fa\u5904\uff1a <a href=\"http:\/\/www.cnblogs.com\/CheeseZH\/\" target=\"_blank\">http:\/\/www.cnblogs.com\/CheeseZH\/ <\/a><br \/>\n* \u672c\u6587\u7248\u6743\u5f52\u4f5c\u8005\u548c\u535a\u5ba2\u56ed\u5171\u6709\uff0c\u6b22\u8fce\u8f6c\u8f7d\uff0c\u4f46\u672a\u7ecf\u4f5c\u8005\u540c\u610f\u5fc5\u987b\u4fdd\u7559\u6b64\u6bb5\u58f0\u660e\uff0c\u4e14\u5728\u6587\u7ae0\u9875\u9762\u660e\u663e\u4f4d\u7f6e\u7ed9\u51fa\u539f\u6587\u8fde\u63a5\uff0c\u5426\u5219\u4fdd\u7559\u8ffd\u7a76\u6cd5\u5f8b\u8d23\u4efb\u7684\u6743\u5229\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528\u80cc\u666f\uff1a \u9700\u8981\u5728\u5176\u4ed6JavaScript\u6587\u4ef6\u4e2d\u8c03\u7528AngularJS\u5185\u90e8\u65b9\u6cd5\u6216 &hellip; <a href=\"http:\/\/blog.sway.com.cn\/?p=460\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[144],"tags":[],"class_list":["post-460","post","type-post","status-publish","format-standard","hentry","category-angularjs"],"_links":{"self":[{"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/460","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=460"}],"version-history":[{"count":1,"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/460\/revisions"}],"predecessor-version":[{"id":461,"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/460\/revisions\/461"}],"wp:attachment":[{"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=460"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.sway.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}