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November 22, 2021 15:23
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Chrome DevTools Snippet for AngularJS apps.
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var ngAppElem = angular.element(document.querySelector('[ng-app]') || document); | |
window.$injector = ngAppElem.injector(); | |
window.inject = $injector.invoke; | |
window.$rootScope = ngAppElem.scope(); | |
// getService('auth') will create a variable `auth` assigned to the service `auth`. | |
var getService = serviceName => | |
inject([serviceName, s => window[serviceName] = s]); | |
Object.defineProperties(window, { | |
$scope: { | |
get() { | |
var elem = angular.element($0); | |
return elem.isolateScope() || elem.scope(); | |
}, | |
}, | |
$ctrl: { | |
get() { | |
return this.$scope.$ctrl; | |
}, | |
}, | |
}); | |
/** | |
* USAGE | |
* | |
* First copy the script and paste it in Chrome DevTools in Sources -> left pane -> Snippets. | |
* Then, after loading an Angular page, right click on the snippet and choose "run". | |
* Afterwards, you have the following available in the console: | |
* | |
* 1) $rootScope | |
* 2) `inject(function ($q, $compile) { ...use $q and $compile here... })`; | |
* 3) Click on an element in DevTools; now `$scope` in the console points at the element scope | |
* (isolate if one exists) and `$ctrl` points to `$scope.$ctrl`. | |
* 4) getService('foo') creates a global `foo` variable pointing to the `'foo'` service. | |
* | |
* Enjoy! | |
*/ |
@repenaxa Corrected, thanks! I thought the feature just went away.
I don't know why I didn't get an email about your comment... :/
angular.element(document.querySelector('[ng-app]') || document);
this is very useful, thanks.
__commandLineAPI
seems to be gone from Chrome 50 (currently in Canary). Unless I can find a replacement API for that it will no longer be possible to run it as a snippet in DevTools, you'll have to copy it & paste into the console. :/
EDIT: a replacement is just to use bare $0
, it now works even in scripts defined outside of the console but run from the console.
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Just so that people don't miss it. It's now window.__commandLineAPI with two underscores.