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Ashutosh Kumar Verma

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Ashutosh Kumar Verma

Ashutosh Kumar Verma

19-Jun-2024

Angular js ng-model

The ng-model directive in AngularJS is used to bind the value of HTML controls (such as input, select, textarea) to application data. It is a two-way data binding between a control and a property defined in the AngularJS controller or scope.

Here is how the ng-model works,

Binding Data- Binds the value of HTML controls to application data. When the data in the controller or scope changes, the HTML control is automatically updated, and vice versa.

Syntax- 

Here is a simple syntax to demonstrate the ng-model in the HTML template,

<input type="text" ng-model="propertyName">


Two-way data binding- ng-model for two-way data binding, ie. changing the input field updates the model in scope, and changing the scope model updates the input field removes this synchronization is automatic without requiring explicit event handling or DOM usage in a negative way.

Usage- In addition to <input>, ng-model can also be used with <select> and <textarea>, making it versatile for various user input controls.

Validation- ng-model also seamlessly integrates with AngularJS’s form validation features, allowing you to easily validate user input using AngularJS’s built-in validation directives

Overall, the ng-model simplifies the process of handling user input and manages the state of application data associated with that input in AngularJS applications.

 

Also, Read: What are AngularJS key features?

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