Angular forms MaxLengthValidator Directive

In this article, we are going to see what is MaxLengthValidator in Angular 10 and how to use it.
The MaxLengthValidator is used to synchronize a standalone FormControl instance to a form control element

<input maxLength ="number">

Exported from:

• ReactiveFormsModule
• FormsModule

Selectors:

• [maxlength] [formControlName]
• [maxlength] [formControl]
• [maxlength] [ngModel]

Approach: 

• Create the Angular app to be used
• In app.component.html set maxLength to input so when you are putting data in that input element you cannot exceed the max constantly.
• Serve the angular app using ng serve to see the output.

Example:

app.component.html

<span>GeeksforGeeks</span>
<input type="text" maxlength="12">
<input maxlength="5">

Output:

Reference: https://angular.io/api/forms/MaxLengthValidator