Validate Gender Field For Free

Fortunately, we can easily do it with just a few lines of code. First, we will create an HTML form with two radio buttons and an "Submit" button. Whenever, the submit button is clicked, an anonymous function is called. The function checks if neither the "Male" radio button nor the "Female" radio button is selected.

Given some words of Gender, the task is to check if they are valid or not using regular expressions. The correct responses can be as given below: Male / male / MALE / M / m.

The ?ValidateForm()? function is defined in a script tag in the head of the HTML document. This function takes a single parameter, which is the form object that the button belongs to. The function checks if neither the ?Male? radio button nor the ?Female? radio button has been selected.

Setup Radio Button Validation It will return the value of the button within the group that is selected, or return a null value if no button in the group is selected. For example, here is the code that will perform the radio button validation: var btn = valButton(form. group1);

The ?ValidateForm()? function is defined in a script tag in the head of the HTML document. This function takes a single parameter, which is the form object that the button belongs to. The function checks if neither the ?Male? radio button nor the ?Female? radio button has been selected.

Add formControlName="gender" to both inputs and it should work. <form [formGroup]="registerForm" (ngSubmit)="onSubmit()"> ... <input type="radio" id="female" value="F" name="gender" formControlName="gender"> ...

The simplest HTML validation feature is the required attribute. To make an input mandatory, add this attribute to the element. When this attribute is set, the element matches the :required UI pseudo-class and the form won't submit, displaying an error message on submission when the input is empty.