Disabling the Button when input field is empty in Angular Last Updated : 28 Apr, 2025 Comments Improve Suggest changes Like Article Like Report A Disabled button is un-clickable and unusable. This is useful when suppose user has not entered a password then the submit button should be disabled. In this article, we will see the Disable button when input is empty in Angular. Steps for Installing & Configuring the Angular Application Step 1: Create an Angular application using the following command. ng new appname Step 2: After creating your project folder i.e. appname, move to it using the following command. cd appnameProject Structure It will look like the following: Example 1: In this example, we will use a function that will check the length of the password. If it is equal to zero then make the button disabled otherwise, enable. HTML <!-- app.component.html --> <h2 style="color: green">GeeksforGeeks</h2> <h2> Disable button when input is empty in Angular </h2> <p> Will you vote for me for Geeks Premier League 2023 ? </p> <input required [(ngModel)]="password" (ngModelChange)="checkPasswordEmpty()"> <button [disabled]="invalid">Submit</button> JavaScript // app.component.ts import { DatePipe } from '@angular/common'; import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: "./app.component.html", }) export class AppComponent { password: string = "" invalid: boolean = true console = console checkPasswordEmpty() { console.log("hi") if (this.password.length == 0) { this.invalid = true } else { this.invalid = false } } } JavaScript // app.module.ts import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { HttpClientModule } from '@angular/common/http'; import { FormsModule } from '@angular/forms' import { AppComponent } from './app.component'; @NgModule({ declarations: [ AppComponent, ], imports: [ BrowserModule, HttpClientModule, FormsModule ], providers: [], bootstrap: [AppComponent] }) export class AppModule { } Output Example 2: In this example, we will use form validators using the ngForm Directive. HTML app.component.html <h2 style="color: green">GeeksforGeeks</h2> <h2> Disable button when input is empty in Angular </h2> <p> Will you vote for me for Geeks Premier League 2023 ? </p> <form #formCtrl="ngForm"> <input required [(ngModel)]="password" name="password"> <button [disabled]="!formCtrl.form.valid"> Submit </button> {{console.log(formCtrl.form.valid)}} </form> JavaScript // app.component.ts import { DatePipe } from '@angular/common'; import { Component } from '@angular/core'; @Component({ selector: 'app-root', templateUrl: "./app.component.html", }) export class AppComponent { console = console password: string = "" } JavaScript // app.module.ts import { NgModule } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { HttpClientModule } from '@angular/common/http'; import { FormsModule } from '@angular/forms' import { AppComponent } from './app.component'; @NgModule({ declarations: [ AppComponent, ], imports: [ BrowserModule, HttpClientModule, FormsModule ], providers: [], bootstrap: [AppComponent] }) export class AppModule { } Output: Comment More info N nikitamehrotra99 Follow Improve Article Tags : Web Technologies AngularJS AngularJS-Questions Explore AngularJS BasicsAngularJS Tutorial 5 min read Introduction to AngularJS 4 min read Angular CLI | Angular Project Setup 3 min read AngularJS Expressions 2 min read AngularJS Modules 3 min read AngularJS ng-model Directive 4 min read AngularJS Data Binding 4 min read AngularJS Controllers 3 min read AngularJS | Scope 2 min read AngularJS Services 4 min read AngularJS | AJAX - $http 3 min read AngularJS | Tables 2 min read AngularJS Select Boxes 2 min read AngularJS SQL 3 min read AngularJS HTML DOM 2 min read AngularJS Events 3 min read AngularJS | Forms 3 min read AngularJS Form Validation 3 min read AngularJS | API 2 min read AngularJS and W3.CSS 2 min read AngularJS Includes 3 min read AngularJS Animations 1 min read AngularJS | Application 3 min read AngularJS DirectivesAngularJS Directives 9 min read AngularJS ng-app Directive 1 min read AngularJS ng-bind Directive 2 min read AngularJS ng-bind-html Directive 2 min read AngularJS ng-bind-template Directive 2 min read AngularJS ng-blur Directive 1 min read AngularJS ng-change Directive 2 min read AngularJS ng-checked Directive 2 min read AngularJS ng-class Directive 2 min read AngularJS ng-class-even Directive 2 min read AngularJS ng-class-odd Directive 2 min read AngularJS ng-click Directive 2 min read AngularJS ng-cloak Directive 2 min read AngularJS ng-controller Directive 2 min read AngularJS Directives Complete Reference 2 min read AngularJS FiltersAngularJS | Filters 7 min read AngularJS currency Filter 2 min read AngularJS | date Filter 2 min read AngularJS filter Filter 3 min read AngularJS json Filter 2 min read AngularJS limitTo Filter 2 min read AngularJS lowercase Filter 1 min read AngularJS number Filter 1 min read AngularJS orderBy Filter 4 min read AngularJs uppercase Filter 1 min read AngularJS Converting FunctionsAngularJS angular.lowercase() Function 2 min read AngularJS angular.uppercase() Function 1 min read AngularJS angular.forEach() Function 1 min read AngularJS Comparing FunctionsAngularJS angular.isArray() Function 2 min read AngularJS angular.isDate() Function 2 min read AngularJS angular.isDefined() Function 2 min read AngularJS angular.isElement() Function 2 min read AngularJS angular.isFunction() Function 2 min read AngularJS angular.isNumber() Function 2 min read AngularJS angular.isObject() Function 2 min read AngularJS | angular.isString() Function 1 min read AngularJS angular.isUndefined() Function 2 min read AngularJS angular.equals() Function 2 min read AngularJS angular.toJson() Function 2 min read AngularJS QuestionsHow to bundle an Angular app for production? 4 min read How to add many functions in one ng-click directive? 2 min read How to directly update a field by using ng-click in AngularJS ? 3 min read How to Add Dynamic Options for Multiple Selects Inside ng-repeat Directive ? 3 min read How to detect when an @Input() value changes in Angular? 3 min read How to open popup using Angular and Bootstrap ? 2 min read How to reload or re-render the entire page using AngularJS? 2 min read How to add input fields dynamically on button click in AngularJS ? 2 min read How to Create Button Dynamically with Click Event in Angular ? 2 min read How to use jQuery in Angular ? 2 min read AngularJS Examples 2 min read Like