HTML Form

An HTML form is used to collect user input. The user input is most often sent to a server for processing.

What is HTML Form

An HTML form is a section of a web page that allows users to input data, which is then sent to a server for processing.

Forms can be used for a variety of purposes, such as collecting information for surveys or registration processes, or for entering shipping or credit card data to order a product.

HTML forms are made up of a container called the HTML form element, which contains other HTML form elements, such as: <input>, <label>, <select>, <textarea>, <button>, <fieldset>, <legend>, <datalist>, <output>, and <option>.

The <form> Element

The HTML <form> element is used to create an HTML form for user input:

Syntax: <form> ... form elements .. </form>

The <form> element is a container for different types of input elements, like: text fields, checkboxes, radio buttons, submit buttons, etc.

The <input> element

The HTML <input> element is the most used form element.

An <input> element can be displayed in many ways, depending on the type attribute.

Here are some examples:

; ;

Type	Description
<input type="text">	Displays a single-line text input field
<input type="button">	Displays a clickable button
<input type="submit">	Displays a submit button (for submitting the form)
<input type="radio">	Displays a radio button (for selecting one of many choices)
<input type="checkbox">	Displays a checkbox (for selecting zero or more of many choices)

Here are the key points to consider when creating an HTML form:

1. Form Element (<form>):

• Action: Specifies the URL where form data is sent.
• Method: Defines how form data is sent. Common methods
  • GET: Data sent via URL parameters (visible in the URL).
  • POST: Data sent in the HTTP body (more secure).

2. Form Inputs (<input>):

• Text Input: Collects plain text
• Password Input: Masks input (e.g., for passwords)
• Radio Buttons: Choose one option from a group
• Checkboxes: Multiple selections are allowed
• Submit Button: Submits the form

3. Labels (<label>):

• Used to associate labels with form elements for better accessibility

4. Textarea (<textarea>):

• Collects larger amounts of text input (e.g., comments or messages)

5. Select Dropdown (<select>):

• Allows users to select one or more options from a dropdown.

6. File Upload (<input type="file">):

• Allows users to upload files

7. Form Validation:

• Required Fields: Add required to input fields
• Pattern Matching: Use pattern to define a regular expression for input validation

8. Placeholders:

• Provides hints for the expected input

9. Fieldset and Legend:

• Group related elements within a form

10. Form Submission:

• Use the submit button to trigger the form submissi