CodesJava

Easy learning with example program codes

Backbone.JS IsNew()


The Backbone.JS IsNew() model is used to check if a model doesn’t have an id and is not saved to the server, to determine it as a new.

Syntax:

Model.IsNew () 

Example:

<!DOCTYPE html>  
<html>
<head>  
<title>Example</title>  
<script src="https://code.jquery.com/jquery-2.1.3.min.js" type="text/javascript"></script>  
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.2/underscore-min.js" 
type="text/javascript"></script>  
<script src="https://cdnjs.cloudflare.com/ajax/libs/backbone.js/1.1.2/backbone-min.js" 
type="text/javascript"></script>  
<script type="text/javascript">  
var X = Backbone.Model.extend({  
defaults: {  
msg: "Welcome."  
}  
});  
var Y = new X();  
document.write(Y.isNew());  
</script>  
</head>  
</html>

Output:

True

Explanation:
In the above example, the model is new.

Please follow and like us:


Copyright © 2019 CodesJava DMCA.com Protection Status SiteMap Reference: Java Wiki