The ngModel directive in Angular is a powerful tool that allows us to bind input controls such as text boxes, checkboxes, and radio buttons to a property on our Angular component. This enables two-way data binding, meaning that changes to the input control will update the underlying property, and changes to the property will update the input control.
To use the ngModel directive, we simply need to add the ngModel attribute to our input control, and then bind it to a property on our component using the syntax [(ngModel)]=”propertyName”. For example, if we have an input control for a user’s name, we can bind it to a property called “username” like this:
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This will create a two-way binding between the input control and the “username” property on our component. Any changes made to the input control will automatically update the “username” property, and vice versa.
The ngModel directive also provides additional features such as validation and error handling. We can use the ngModel directive in combination with Angular’s built-in validation directives to ensure that the user’s input meets certain criteria, such as being a required field or meeting a specific format.
Overall, the ngModel directive in Angular is a powerful and useful tool for managing two-way data binding between input controls and component properties. It simplifies the process of keeping the UI and data in sync, and provides features for handling user input validation and errors. Whether you’re building a simple form or a complex data-driven application, the ngModel directive is a key feature to utilize in your Angular projects.
