Control the scope value using an AngularJS directive

Question

Control the scope value using an AngularJS directive

I have a model with values that I need to modify before presenting them to the user. I have checked the documentation but might be overlooking something.

For example, I would like to format my variable in this way:

<span decode-directive>{{variable}}</span>

I am looking to create the decode-directive so that it displays variable + 1234, for instance.

This modification is needed in multiple instances, so I cannot hard-code it for just one particular object.
Any help on how to achieve this would be greatly appreciated.

javascript angularjs angularjs-directive

Answer 1

Answer №1

To implement the ngSanitize library, you simply need to include it as a dependency in your AngularJS application.

var app = angular.module('myApp', ['ngSanitize']);

app.controller('MainCtrl', function($scope) {
  $scope.name = 'S&ouml;ren';
});

HTML

<!DOCTYPE html>
<html ng-app="myApp">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS App</title>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.4.9" src="https://code.angularjs.org/1.4.9/angular.js" data-semver="1.4.9"></script>
    <script data-require="ngSanitize@*" data-semver="1.3.15" src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular-sanitize.js"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">
    <p>{{name}}!</p>

    <span ng-bind-html="name"></span>
  </body>

</html>

Answer 2

To implement the ngSanitize library, you simply need to include it as a dependency in your AngularJS application.

var app = angular.module('myApp', ['ngSanitize']);

app.controller('MainCtrl', function($scope) {
  $scope.name = 'S&ouml;ren';
});

HTML

<!DOCTYPE html>
<html ng-app="myApp">

  <head>
    <meta charset="utf-8" />
    <title>AngularJS App</title>
    <link rel="stylesheet" href="style.css" />
    <script data-require="angular.js@1.4.9" src="https://code.angularjs.org/1.4.9/angular.js" data-semver="1.4.9"></script>
    <script data-require="ngSanitize@*" data-semver="1.3.15" src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular-sanitize.js"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">
    <p>{{name}}!</p>

    <span ng-bind-html="name"></span>
  </body>

</html>

Answer 3

Answer №2

To handle this scenario, you can implement an angular filter. If the content of your variable is consistently encoded in HTML, here is a sample solution:

filter('trustedHtml', function($sce) {
    return function(input){
        return $sce.trustAsHtml(input);
    }
})

Subsequently, in your HTML code, you can apply the filter like so:

<span ng-bind-html="yourVar | trustedHtml"></span>

Here is a demonstration on jsFiddle:

angular.module("app", [])

.filter('trustedHtml', function($sce){
    return function(input){
        return $sce.trustAsHtml(input);
    }
})

.controller("mainController", function($scope){
    $scope.yourVar = "&lt;ExampleText"
})

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div ng-controller="mainController" >
<span ng-bind-html="yourVar | trustedHtml"></span>
</div>

Answer 4

To handle this scenario, you can implement an angular filter. If the content of your variable is consistently encoded in HTML, here is a sample solution:

filter('trustedHtml', function($sce) {
    return function(input){
        return $sce.trustAsHtml(input);
    }
})

Subsequently, in your HTML code, you can apply the filter like so:

<span ng-bind-html="yourVar | trustedHtml"></span>

Here is a demonstration on jsFiddle:

angular.module("app", [])

.filter('trustedHtml', function($sce){
    return function(input){
        return $sce.trustAsHtml(input);
    }
})

.controller("mainController", function($scope){
    $scope.yourVar = "&lt;ExampleText"
})

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<div ng-controller="mainController" >
<span ng-bind-html="yourVar | trustedHtml"></span>
</div>

Control the scope value using an AngularJS directive

Answer №1

Answer №2

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