angularjs-scope | 易学教程

AngularJs scope variables in console

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问题 I know that we can access scope variables using batarang (chrome extension), and angular.element(document.querySelector('selector')).scope() I was able to access scope, controllers, in angular.io, angularjs.org But I came across an angularJs website (www.paytm.com) that is able to block me from accessing scope variables in console, also controller, etc. How can I block users from accessing the scope variables? Even if I block, is there any way that users may access the scope variables? Will I

What's the difference between using function and using inline expression to set scope variable

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问题 I found some differences between executing function and using expression to set variable, specifically, it seems that ng-if fails to detect the changes made by expression. I don't understand why. Pseudo-code: if($scope.editingProfile) display edit section click(backToList button) hide edit section The backToList button has a ng-click attribute, when I write ng-click="backToList()" to execute $scope.backToList() in which the $scope.editingProfile is set to false it works good. But when I write

How to reach variable outside the ng-repeat scope

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问题 Is possible to reach variable outside the ng-repeat scope? jsfiddle: http://jsfiddle.net/zcbhubrw/ Here is the code: HTML <div class="section" ng-app="phonecatApp" ng-controller="PhoneListCtrl"> <div class="slide" > <div class="container"> <h2 class="section-title">Selected Mobiles</h2> </div> <div class="container-fluid fix ver2"> <div class="col-md-3 work-thumb" ng-repeat="phone in phones"> <a href="#" ng-click="count = {{$index}}"> {{phone.name}} </a> </div> </div> </div> <p>Count: {{count

Using “this” instead of “scope” with AngularJS controllers and directives

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问题 I was recently reading John Papa's opinionated AngularJS style guide and noticed his convention on controllers: /* recommended */ function Customer () { var vm = this; vm.name = {}; vm.sendMessage = function () { }; } When this is used in a controller it works just fine as you can do something like this (his example):  <div ng-controller="Customer as customer"> {{ customer.name }} </div> However I am more curious in how it works with directives that rely on this controller

Angular - Filter to remove blank strings from array

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问题 I have an object of arrays... The array can contain blanks, how can i create an ANgular filter to remove the blanks to determine the length of the array? $scope.myData = { ["1", "1", "4", "4", "N", "4", "6", "8", "", "", "", "", "", "", "", "", "", "", ], ["2", "2", "4", "6", "0", "6", "5", "4", "2", "", "8", "", "", "", "", "", "", "", ], ["2", "3", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", ], ["3", "F", "D", "3", "5", "1", "D", "5", "", "", "", "", "", "", "", "", "",

Calculating date difference with angular filter

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问题 I needed to be able to calculate the difference between two days, inclusive, and display the difference. Ideally this would be via an angular filter so it can be used all over the application. 回答1: JS Filter generalFilters.filter('dateDiff', function () { var magicNumber = (1000 * 60 * 60 * 24); return function (toDate, fromDate) { if(toDate && fromDate){ var dayDiff = Math.floor((toDate - fromDate) / magicNumber); if (angular.isNumber(dayDiff)){ return dayDiff + 1; } } }; }); HTML to display

correct way to initialise scope values when the view is loaded with angularjs, ngInit?

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问题 I've been learning angularJs for the past few weeks and been looking at a number of large scale apps to see how things work in the real world. In most of them I have noticed when a view is loaded : ng-init="init()" i.e. the function init() is called in the relevant controller. Is used to set the initial values. BUT(big but) when reading through the angular docs on ngInit i came to a rather stern looking description: "The only appropriate use of ngInit for aliasing special properties of

Does ng-init watch over change on instantiated property like ng-model does?

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问题 Does ng-init watch over change on instantiated property like ng-model does? Apparently not, so I set a watch as shown below: app.js var app = angular.module('plunker', []); app.controller('MainCtrl', function($scope) { $scope.$watch('myProp1', function(newVal, oldVal){ $scope.myProp1 = newVal }) }); html <body ng-controller="MainCtrl"> <input ng-init='myProp="my property"'>{{myProp}}</br> <input ng-init='myProp1="my 1 property"'>{{myProp1}}</br> <input ng-init='myProp11="my 11 property"' ng

Does ng-init watch over change on instantiated property like ng-model does?

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How do I get an input value into Angular's $scope?

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问题 I'm new to Angular, and I am trying to do something really basic. Here is a part of a view (all angular files are added elsewhere) : <div ng-controller='ctrl'> <input type='text' ng-model='id'> </div> And here is my controller : module.controller('ctrl',['$scope', function ($scope) { // get the scope value here }]); What I'm trying to do is really simple. I'd like to use the input value. I tried something like $scope.data = [] and $scope.data.push($scope.id) to create an array with the scope