/Javascript/AngularJS/Angular form validation whitespace

Angular form validation whitespace

public noWhitespaceValidator(control: FormControl) {
    const isWhitespace = (control.value || '').trim().length === 0;
    const isValid = !isWhitespace;
    return isValid ? null : { 'whitespace': true };
}

Source: stackoverflow.com

Angular form validation whitespace

<div *ngIf="yourForm.hasError('whitespace')">Please enter valid data</div>

Source: stackoverflow.com

Angular form validation whitespace

new FormControl(field.fieldValue || '', [Validators.required, this.noWhitespaceValidator])

Source: stackoverflow.com

Similar codes

0 vote327 views1 answer
Angular2-tree-diagram
Javascript AngularJS
1 vote335 views1 answer
Route parammap subscribe angular 9
Javascript AngularJS
0 vote332 views1 answer
Input set variable angular
Javascript AngularJS
43 votes438 views6 answers
Add bootstrap to angular
Javascript AngularJS
3 votes328 views1 answer
Scoll a div to bottom in angular
Javascript AngularJS
12 votes312 views5 answers
Angular font awesome
Javascript AngularJS
0 vote390 views2 answers
Angularjs onclick disable button click
Javascript AngularJS
0 vote334 views1 answer
Module not found error can't resolve 'rxjs/observable' angular 8
Javascript AngularJS
0 vote304 views1 answer
Http request body angular
Javascript AngularJS
9 votes337 views1 answer
Angular ERROR Error: ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked.
Javascript AngularJS