Adding multiple class using ng-class

For the ternary operator notation:

<div ng-class="expression1? 'class1 class2' : 'class3 class4'"> 

An incredibly powerful alternative to other answers here:

ng-class="[ { key: resulting-class-expression }[ key-matching-expression ], .. ]" 

Some examples:

1. Simply adds 'class1 class2 class3' to the div:

<div ng-class="[{true: 'class1'}[true], {true: 'class2 class3'}[true]]"></div> 

2. Adds 'odd' or 'even' classes to div, depending on the $index:

<div ng-class="[{0:'even', 1:'odd'}[ $index % 2]]"></div> 

3. Dynamically creates a class for each div based on $index

<div ng-class="[{true:'index'+$index}[true]]"></div> 

If $index=5 this will result in:

<div class="index5"></div> 

Here's a code sample you can run:

var app = angular.module('app', []); app.controller('MyCtrl', function($scope){ $scope.items = 'abcdefg'.split(''); }); 

.odd { background-color: #eee; } .even { background-color: #fff; } .index5 {background-color: #0095ff; color: white; font-weight: bold; } * { font-family: "Courier New", Courier, monospace; }

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js"></script> <div ng-app="app" ng-controller="MyCtrl"> <div ng-repeat="item in items" ng-class="[{true:'index'+$index}[true], {0:'even', 1:'odd'}[ $index % 2 ]]"> index {{$index}} = "{{item}}" ng-class="{{[{true:'index'+$index}[true], {0:'even', 1:'odd'}[ $index % 2 ]].join(' ')}}" </div> </div>

Yes you can have multiple expression to add multiple class in ng-class.

For example:

<div ng-class="{class1:Result.length==2,class2:Result.length==3}"> Dummy Data </div> 

Using a $scope method on the controller, you can calculate what classes to output in the view. This is especially handy if you have a complex logic for calculating class names and it will reduce the amount of logic in your view by moving it to the controller:

app.controller('myController', function($scope) { $scope.className = function() { var className = 'initClass'; if (condition1()) className += ' class1'; if (condition2()) className += ' class2'; return className; }; }); 

and in the view, simply:

<div ng-class="className()"></div> 

Your example works for conditioned classes (the class name will show if the expressionDataX is true):

<div ng-class="{class1: expressionData1, class2: expressionData2}"></div>

You can also add multiple classes, supplied by the user of the element:

<div ng-class="[class1, class2]"></div>

Usage:

<div class="foo bar" class1="foo" class2="bar"></div>

Here is an example comparing multiple angular-ui-router states using the OR || operator:

<li ng-class=" { warning: $state.includes('out.pay.code.wrong') || $state.includes('out.pay.failed') , active: $state.includes('out.pay') } "> 

It will give the li the classes warning and/or active, depening on whether the conditions are met.

Below active and activemenu are classes and itemCount and ShowCart is expression/boolean values.

ng-class="{'active' : itemCount, 'activemenu' : showCart}" 

With multiple conditions

<div ng-class="{'class1' : con1 || can2, 'class2' : con3 && con4}"> Hello World! </div> 

Found another way thanks to Scotch.io

<div ng-repeat="step in steps" class="step-container step" ng-class="[step.status, step.type]" ng-click="onClick(step.type)"> 

This was my reference.PATH

Other way we can create a function to control "using multiple class"

CSS

 <style> .Red { color: Red; } .Yellow { color: Yellow; } .Blue { color: Blue; } .Green { color: Green; } .Gray { color: Gray; } .b { font-weight: bold; } </style> 

Script

<script> angular.module('myapp', []) .controller('ExampleController', ['$scope', function ($scope) { $scope.MyColors = ['It is Red', 'It is Yellow', 'It is Blue', 'It is Green', 'It is Gray']; $scope.getClass = function (strValue) { if (strValue == ("It is Red")) return "Red"; else if (strValue == ("It is Yellow")) return "Yellow"; else if (strValue == ("It is Blue")) return "Blue"; else if (strValue == ("It is Green")) return "Green"; else if (strValue == ("It is Gray")) return "Gray"; } }]); </script> 

Using it

<body ng-app="myapp" ng-controller="ExampleController"> <h2>AngularJS ng-class if example</h2> <ul > <li ng-repeat="icolor in MyColors" > <p ng-class="[getClass(icolor), 'b']">{{icolor}}</p> </li> </ul> 

You can refer to full code page at ng-class if example

I use this:

[ngClass]="[{ 'basic':'mat-basic-button', 'raised':'mat-raised-button', 'stroked':'mat-stroked-button' }[ button.style ?? 'raised' ]]"