JavaScript has several key features that make it a popular choice for web development.
One of the key features of JavaScript is its ability to manipulate the DOM (Document Object Model) of a web page, allowing developers to dynamically change the content and style of elements.
Another important feature is its support for event handling, which allows developers to create interactive web pages that respond to user actions.
JavaScript is also known for its support for functional programming techniques, such as first-class functions and higher-order functions.
It has a rich set of built-in objects and functions, which make it easy to work with strings, arrays, dates, and other data types.
JavaScript supports object-oriented programming with prototypal inheritance, which allows objects to inherit properties and methods from other objects.
It also has support for asynchronous programming, which allows developers to write non-blocking code that can handle multiple tasks simultaneously.
JavaScript is a dynamically typed language, which means that variables do not have a fixed type and can change at runtime.
It is also an interpreted language, which means that it is executed line by line by a JavaScript engine.
Overall, these features make JavaScript a versatile and powerful language for web development.