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jQuery Traversing

? jQuery Traversing

? Quick Overview

Traversing means moving through the DOM tree to find elements related to the current element. It allows navigation upward, downward, and sideways in the DOM.

? Key Concepts

  • Parent and ancestor selection
  • Child and descendant traversal
  • Sibling navigation
  • Filtering element sets

? Syntax / Theory

? View Code Example
// Common jQuery traversing methods
parents()
parent()
children()
find()
siblings()
next()
prev()
filter()
not()

? Code Example

? View Code Example
// jQuery traversing interactions
$(document).ready(function () {
  $('#btnParents').click(function () {
    let parents = $('#item1-1').parents().map(function () {
      return this.id || this.tagName.toLowerCase();
    }).get().join(', ');
    $('#result').text('Parents of Item 1.1: ' + parents);
  });

  $('#btnChildren').click(function () {
    let children = $('#item2').children().map(function () {
      return this.id || this.tagName.toLowerCase();
    }).get().join(', ');
    $('#result').text('Children of Item 2: ' + children);
  });
});

?️ Live Output / Explanation

Clicking buttons dynamically displays related elements based on traversal method used.

? Interactive Example

  • Item 1
    • Item 1.1
    • Item 1.2
  • Item 2
    • Item 2.1
    • Item 2.2
  • Item 3
Interaction results will appear here...

? Use Cases

  • Dynamic UI manipulation
  • Form validation flows
  • Event-based DOM navigation

? Tips & Best Practices

  • Use parents() carefully for performance
  • Prefer children() when structure is known
  • Chain traversing methods efficiently

? Try It Yourself

  • Highlight siblings on hover
  • Count child elements dynamically
  • Combine find() with filter()