JavaScript DOM Forms

The DOM represents form elements like <input>, <select>, <textarea>, <button> as properties of the form object, enabling powerful control using JavaScript.

Accessing Forms and Elements

• Access a form: document.forms["formName"] or document.getElementById("formID")
• Access form elements: form.elements["elementName"] or form.inputName.value

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Example 1: Access Form Elements

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Example 2: Validate Form on Submit

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Example 3: Reset Form Using JavaScript

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Key Takeaways

• Access forms with document.forms or getElementById().
• Access form elements via form.elements["name"].
• Validate inputs, handle submissions, and reset forms dynamically.
• Use addEventListener("submit", ...) to handle form submissions.
• Use event.preventDefault() to prevent page reload when handling form actions with JavaScript.