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The ng-checked Directive in AngularJS is used to read the checked or unchecked state of the checkbox or radio button to true or false. If the expression inside the ng-checked attribute returns true then the checkbox/radio button will be checked otherwise it will be unchecked.

Angular Checkbox Change Event Example Step 1: Import FormsModule. If you want to create form in angular app then you need to import FormsModule from @angular/forms library. ... Step 2: Form with ngModel. In this step, we will write code of html form with ngModel. ... Step 3: updated Ts File. In ts file.

Store all selected checkbox value in array using for loop. When the Store Value button is clicked, the myFunc() function gets called. Inside this function, create a new blank array ( let arr = [] ). Then, store the selected checkbox into a variable using querySelectorAll() method.

In JavaScript, we can access the checkbox element using id, class, or tag name and apply '. checked' to the element, which returns either true or false based on the checkbox is checked.

Different JavaScript codes to get marked checkboxes value <script> document.getElementById('btn').onclick = function() { var markedCheckbox = document.getElementsByName('pl'); for (var checkbox of markedCheckbox) { if (checkbox.checked) document.body.append(checkbox.value + ' '); } }

To set a checkbox to checked/unchecked in TypeScript: Select the checkbox element. Type the element as HTMLInputElement using a type assertion. Use the element's checked property to set the checkbox to checked or unchecked.

You can add checkboxes with custom values. For example, the custom checked value could be "Yes," and the unchecked value could be "No."

Input Checkbox value Property Return the value of the value attribute of a checkbox: getElementById("myCheck"). value; ... Change the value associated with the checkbox: getElementById("myCheck"). value = "newCheckboxValue"; ... Submitting a form - how to change the value associated with the checkbox: getElementById("myCheck").

Approach: The approach is to use the ng-checked directive to check the checkbox in the DOM. In the first example, a single checkbox is checked by the button and In the second example, multiple checkboxes are checked by the button. The ng-model directive is used to bind the checkboxes.