JavaScript Selectors

JavaScript selectors are methods and properties used to access and manipulate HTML elements in the Document Object Model (DOM). They allow developers to target specific elements on a web page using identifiers like IDs, classes, tag names, or CSS selectors, enabling dynamic content updates, event handling, and interactive features. Common examples include getElementById, querySelector, and getElementsByClassName.

Also known as: DOM Selectors, Element Selectors, JS Selectors, Query Selectors, getElement Methods

Why learn JavaScript Selectors?

Developers should learn JavaScript selectors when building interactive web applications, as they are essential for DOM manipulation, form validation, and creating responsive user interfaces. They are particularly useful in front-end development for tasks like updating content without page reloads, handling user inputs, and implementing animations or effects based on user actions.

Learning Resources

• docs: MDN Web Docs: Document Object Model (DOM)
• tutorial: W3Schools: JavaScript HTML DOM
• tutorial: freeCodeCamp: Learn JavaScript - DOM Manipulation
• tutorial: JavaScript.info: Document
• video: YouTube: JavaScript DOM Crash Course