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javascript traversing

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Rajbits answered on July 25, 2022 Popularity 9/10 Helpfulness 3/10

answer javascript traversing

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javascript traversing

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Traversing means "move through", are used to "find" (or select) HTML elements based on their relation to other elements. Start with one selection and move through that selection until you reach the elements you desire.

By using 

Closest
const closestElement = targetElement.closest(selector);

Siblings
const previous = element.previousSibling;
const next = element.nextSibling;

Children
const container = document.querySelector('#container');
const children = container.childNodes;

Parent
const current = document.querySelector('#main');
const parent = current.parentNode;

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript

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Contributed on Jul 25 2022

Rajbits

0 Answers Avg Quality 2/10

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traversing the dom javascript

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// Traversing downwards
element.querySelector()
element.querySelectorAll()
element.children()
// Traversing upwards
element.parentElement()
element.closest()
// Traversing sideways
element.nextElementSibling()
element.previousElementSibling()

Popularity 7/10 Helpfulness 3/10 Language javascript

Source: zellwk.com

Tags: dom javascript javascrip

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Contributed on Sep 12 2023

Bek Consulting

0 Answers Avg Quality 2/10

tree traversal javascript

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class Tree {
  constructor(root) {
    this.root = root;
  }

  // Inorder method doesn't need a root argument now
  // It uses instance's own root
  Inorder() {
    // Fire up the recursion
    Tree._Inorder(this.root);
  }

  // Private part for the Inorder method's recursion
  // It can be static since it will receive the root 
  // for each iteration
  static _Inorder(root) {
    if (root == null) {
      return;
    }

    Tree._Inorder(root.left);

    console.log(root.data);

    Tree._Inorder(root.right);
  }
}


class Node {
  constructor(data) {
    this.data = data;
    this.left = null;
    this.right = null;
  }
}

const obj = new Node(5);
obj.left = new Node(10);
obj.right = new Node(15);
obj.left.left = new Node(16);
obj.right.right = new Node(17);

const tree = new Tree(obj);
console.log("Tree created with root:", tree.root.data);

// Now we can call the inorder list for the tree 
// without explicitely specifying the root node
tree.Inorder();

Popularity 5/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: javascript tree-traversal

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Contributed on May 14 2024

Gavin Dennett

0 Answers Avg Quality 2/10

javascript dom traversing

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1.getElementById()
 <div id="user">Get Element by ID</div>
 const userId = document.getElementById(user)
 console.log(userId)

/* Output
<div id="user">Get Element by ID</div>*/

<!-------->
2.getElementsByClassName() 

<div class="user">Get Element by Class Name (1)</div>
const userClass = document.getElementsByClassName('user')
The getElementsByClassName() returns an array-like object of the elements.
We can convert the array-like object to an actual JavaScript array with the Array.from()
method or the spread operator.
/* With the Spread Operator */
const userClass = [...document.getElementsByClassName('user')]

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: dom

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Contributed on Sep 01 2022

Mohammad alshraideh

0 Answers Avg Quality 2/10

javascript traversing

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