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HTML Element Access Using JavaScript! 🚀🔍 #programming #javascriptdom #javascript

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Accessing elements in JavaScript is commonly done using various methods depending on the type of element and the context in which you're working. Here's a basic overview:
getElementById: This method retrieves an element by its ID attribute.
JavaScript code:
getElementsByClassName: This method retrieves elements by their class name. It returns a collection of elements.
JavaScript code:
getElementsByTagName: This method retrieves elements by their tag name. It also returns a collection.
JavaScript code:
querySelector: This method allows you to select a single element using CSS selectors.
JavaScript code:
querySelectorAll: Similar to querySelector, but it returns a collection of elements matching the selector.
JavaScript code:
Accessing nested elements: Once you have a reference to an element, you can access its children using properties like children, childNodes, firstChild, lastChild, etc.
Example:
JavaScript code
Remember that some methods return collections of elements, while others return a single element or null if no matching element is found. Also, always ensure that the DOM has loaded before trying to access elements using JavaScript, either by placing your script at the bottom of the HTML document or by using event listeners like DOMContentLoaded.
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Rajdip Sarkar
getElementById: This method retrieves an element by its ID attribute.
JavaScript code:
getElementsByClassName: This method retrieves elements by their class name. It returns a collection of elements.
JavaScript code:
getElementsByTagName: This method retrieves elements by their tag name. It also returns a collection.
JavaScript code:
querySelector: This method allows you to select a single element using CSS selectors.
JavaScript code:
querySelectorAll: Similar to querySelector, but it returns a collection of elements matching the selector.
JavaScript code:
Accessing nested elements: Once you have a reference to an element, you can access its children using properties like children, childNodes, firstChild, lastChild, etc.
Example:
JavaScript code
Remember that some methods return collections of elements, while others return a single element or null if no matching element is found. Also, always ensure that the DOM has loaded before trying to access elements using JavaScript, either by placing your script at the bottom of the HTML document or by using event listeners like DOMContentLoaded.
Thank you for watching this video
Rajdip Sarkar