ES5 (ECMAScript 5)

ECMAScript 5, often abbreviated as ES5, is a version of the JavaScript programming language standardized in 2009. It introduced important features that made coding easier and more powerful, such as strict mode for better error handling, new methods for working with arrays and objects, and better support for JSON (a data format). ES5 allows developers to write cleaner, more efficient code, enhancing the performance and reliability of web applications. It laid the groundwork for later versions of JavaScript and remains widely used today in website development.