JavaScript: ngModel vs (ngModel)

Both ngModel and (ngModel) are used in JavaScript frameworks (such as AngularJS or Angular) to handle two-way data binding between the model and the view. They have similar functionality but differ in their syntax and usage.

ngModel

ngModel is a directive provided by AngularJS. It is used to bind the value of an input field to a variable in the model. Here is an example:

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

In this example, ng-model binds the value of the input field to the name variable in the model. Any changes made to the input field will automatically update the name variable, and vice versa.

ngModel also provides additional features such as validation and error handling. It can be used with form elements like input, select, textarea, etc.

(ngModel)

(ngModel) is a syntax used in Angular to achieve the same two-way data binding as ngModel. It is commonly used with event binding, where the value of a variable is updated on specific events, such as a button click or input change. Here is an example:

<input [(ngModel)]="name" type="text">
<button (click)="updateName()">Update</button>

In this example, (ngModel) binds the value of the input field to the name variable. The variable will be updated whenever the input value changes. The button's click event is bound to the updateName() function, which can perform additional operations if needed.

(ngModel) is typically used in Angular applications, as it provides a more concise syntax compared to ngModel.

Conclusion

Both ngModel and (ngModel) serve the same purpose of achieving two-way data binding in JavaScript frameworks. ngModel is used in AngularJS, while (ngModel) is commonly used in Angular. Choose the syntax based on the framework you are working with.