AngularJS IsDefined Function

AngularJS isDefined function is used to identify if a reference is defined or not. This function return true if reference is defined.

Syntax

angular.isDefined(value);

AngularJS IsDefined Function Example

<!DOCTYPE html>
<html ng-app="">  
<head>  <!-- www.techstrikers.com -->
<title>My first AngularJS code</title>  
<script SRC="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.js">  
</script>  
  
</head>  
<body bgcolor="#bnde45">
<fieldset>
<legend>AngularJS IsDefined Function</legend>
<script>  

var sourceObj1;
var str = "www.techstrikers.com";

document.write(angular.isDefined(sourceObj1));  
document.write("</br>");
document.write(angular.isDefined(str));  
  
</script>
</fieldset>
</body>  
</html>

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AngularJS IsDefined Function Example

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