JavaScript DOM Navigation

Common DOM Navigation Properties

• parentNode: Accesses the parent of an element.
• children: Returns all child elements (ignores text nodes).
• firstElementChild: First child element.
• lastElementChild: Last child element.
• previousElementSibling: Previous sibling element.
• nextElementSibling: Next sibling element.

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Example 1: Accessing Parent and Child Elements

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Example 2: Navigating Between Siblings

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Example 3: Loop Through Children of a Parent

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Key Takeaways

• DOM navigation allows access to parent, child, and sibling elements.
• Use .children, .firstElementChild, and .lastElementChild to work with element nodes only.
• Use .nextElementSibling and .previousElementSibling for cleaner sibling traversal.
• Use .parentNode to move up one level in the DOM tree.