angularjs

Protractor “by.css()” vs “$()” Dollar Sign vs “$$()” ‘Bling Bling’

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$ and $$ are just convenient shortcuts. $(“selector”) is an alternative for element(by.css(“selector”)). $$(“selector”) is an alternative for element.all(by.css(“selector”)). FYI, quote from the source code: ElementFinder.prototype.$ = function(selector) { return this.element(webdriver.By.css(selector)); }; ElementArrayFinder.prototype.$$ = function(selector) { return this.all(webdriver.By.css(selector)); }; And the actual commit that initially made it happen.

What are the accessibility implications of using a framework like angularjs?

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All the same principles apply, such as using alt text for images, good use of headings, use the appropriate HTML(5) structures for content. You might be creating it via JavaScript, but screen readers of the last ~5 years understand that, and use the browser’s accessibility API to access the DOM. The non-JavaScript aspect is simply … Read more

Two-way data binding (Angular) vs one-way data flow (React/Flux)

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Angular’s two-way data binding It’s made possible by a mechanism that synchronizes the view and the model whenever either change. In Angular, you update a variable and its change detection mechanism will take care of updating the view, and viceversa. What’s the problem? You don’t control the change detection mechanism. I found myself having to … Read more

Angular Material VS Materializecss [closed]

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Go for Materialize. I don’t know why people downvoted your question. It is a legitimate question. And though Angular Material looks like a more attractive choice as it has the famous word “Angular” in its name. But it is definitely not the right choice. It may have better integration with angular but a good programmer … Read more

Angularjs. How can I pass variable as argument to custom filter?

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Yes, it is possible to use variable from the $scope See this fiddle for an example: http://jsfiddle.net/lopisan/Kx4Tq/ HTML: <body ng-app=”myApp”> <div ng-controller=”MyCtrl”> <input ng-model=”variable”/><br/> Live output: {{variable | countmessage : type}}!<br/> Output: {{1 | countmessage : type}}! </div> </body> JavaScript: var myApp = angular.module(‘myApp’,[‘myApp.filters’]); function MyCtrl($scope) { $scope.type=”cat”; } angular.module(‘myApp.filters’, []) .filter(‘countmessage’, function () { … Read more

Understanding AngularJS ng-src

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Put the whole path inside the $scope variable. That way ng-src will wait until you provide it with the fully resolved path to the image: <div ng-controller=”MyCtrl”> <img ng-src=”https://stackoverflow.com/questions/18235169/{{ path }}” /> </div> function MyCtrl($scope, $timeout) { var path=”https://si0.twimg.com/profile_images/”; $timeout(function () { $scope.path = path + ‘2149314222/square.png’; }, 1000); }; FIDDLE

How to bind boolean values in angular directives?

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You can configure your own 1-way databinding behavior for booleans like this: link: function(scope, element, attrs) { attrs.$observe(‘collapsable’, function() { scope.collapsable = scope.$eval(attrs.collabsable); }); } Using $observe here means that your “watch” is only affected by the attribute changing and won’t be affected if you were to directly change the $scope.collapsable inside of your directive.

Displaying different content within a single view based on the user’s role

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The solution is in this fiddle: http://jsfiddle.net/BmQuY/3/ var app = angular.module(‘myApp’, []); app.service(‘authService’, function(){ var user = {}; user.role=”guest”; return{ getUser: function(){ return user; }, generateRoleData: function(){ /* this is resolved before the router loads the view and model. It needs to return a promise. */ /* … */ } } }); app.directive(‘restrict’, function(authService){ return{ … Read more

Wait until scope variable is loaded before using it in the view in angular.js

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You ask: How can I wait for allPermissions to be loaded before the view renders? To prevent the entire view from rendering, you must use resolve. You don’t have to use the promise library though, since $http returns a promise: var app = angular.module(‘app’); app.config(function ($routeProvider) { $routeProvider .when(“https://stackoverflow.com/”, { templateUrl : ‘template.html’, controller : … Read more

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