angular validators number only in reactive form
new FormControl({value: field.value}, [Validators.required, Validators.pattern(/^-?(0|[1-9]\d*)?$/)])angular validators number only in reactive form
new FormControl({value: field.value}, [Validators.required, Validators.pattern(/^-?(0|[1-9]\d*)?$/)])ng2 validations angular using reactiveforms
<form [formGroup]="form">
<input type="password" formControlName="password"/>
<p *ngIf="form.controls.password.errors?.required">required error</p>
<input type="password" formControlName="certainPassword"/>
<p *ngIf="form.controls.certainPassword.errors?.equalTo">equalTo error</p>
</form>formgroup check if valid
form: FormGroup;
onSubmit(){
//checks if form is valid
if( this.form.valid){
//more code here
}
}angular9+how+to+add+validators
this.form.controls["firstName"].setValidators([Validators.minLength(1), Validators.maxLength(30)]);Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
