📜  ecmascript - Javascript (1)

📅  最后修改于: 2023-12-03 14:40:56.450000             🧑  作者: Mango

ECMAScript (ES) - JavaScript

ECMAScript is a standardized scripting language, developed by the European Computer Manufacturers Association (ECMA). It is better known as JavaScript, which is an implementation of ECMAScript. JavaScript has become one of the most popular programming languages and is widely used for creating web applications.

History of ECMAScript

ECMAScript was first introduced in 1997 as a standard scripting language for web browsers by Netscape Communications Corporation. It was later standardized by the ECMA in 1999 as ECMAScript 3.

ECMAScript 4 was proposed in 2000 but was never released due to disagreements between the various parties involved in its development. In 2005, ECMAScript 3.1 was proposed, but it too was abandoned.

ECMAScript 5 was eventually released in 2009 and added several new features to the language, including strict mode and JSON support. ECMAScript 6, also known as ECMAScript 2015, was released in 2015 and introduced several new features such as classes, arrow functions, and let and const keywords.

Features of ECMAScript

ECMAScript is a versatile scripting language with numerous features that make it easy to write complex web applications.

Object-Oriented Programming

ECMAScript is an object-oriented language, which means that it supports various OOP concepts such as classes, objects, encapsulation, inheritance, and polymorphism.

Functions

Functions play a vital role in ECMAScript as they are used extensively for manipulating data and controlling program flow. Functions can be declared using the function keyword or created using arrow notation.

Variables

ECMAScript 6 introduced two new keywords for declaring variables, let and const, which provide better scoping rules than the traditional var keyword.

Modules

ECMAScript 6 also introduced a new syntax for creating modules, which allows developers to encapsulate code and make it more reusable.

Promises

Promises are a way to handle asynchronous code in a more organized and predictable way. They allow developers to write code that runs in the background and then returns a value when it's finished.

Conclusion

ECMAScript is a powerful scripting language that has revolutionized the way we create web applications. It provides a standard way of writing complex applications that can run on any platform or device. The constant evolution of ECMAScript and the addition of new features ensure that it will remain a popular choice for developers for years to come.

# ECMAScript (ES) - JavaScript

ECMAScript is a standardized scripting language, developed by the European Computer Manufacturers Association (ECMA). It is better known as JavaScript, which is an implementation of ECMAScript. JavaScript has become one of the most popular programming languages and is widely used for creating web applications.

## History of ECMAScript

ECMAScript was first introduced in 1997 as a standard scripting language for web browsers by Netscape Communications Corporation. It was later standardized by the ECMA in 1999 as ECMAScript 3.

ECMAScript 4 was proposed in 2000 but was never released due to disagreements between the various parties involved in its development. In 2005, ECMAScript 3.1 was proposed, but it too was abandoned.

ECMAScript 5 was eventually released in 2009 and added several new features to the language, including strict mode and JSON support. ECMAScript 6, also known as ECMAScript 2015, was released in 2015 and introduced several new features such as classes, arrow functions, and let and const keywords.

## Features of ECMAScript

ECMAScript is a versatile scripting language with numerous features that make it easy to write complex web applications.

### Object-Oriented Programming

ECMAScript is an object-oriented language, which means that it supports various OOP concepts such as classes, objects, encapsulation, inheritance, and polymorphism.

### Functions

Functions play a vital role in ECMAScript as they are used extensively for manipulating data and controlling program flow. Functions can be declared using the function keyword or created using arrow notation.

### Variables

ECMAScript 6 introduced two new keywords for declaring variables, let and const, which provide better scoping rules than the traditional var keyword.

### Modules

ECMAScript 6 also introduced a new syntax for creating modules, which allows developers to encapsulate code and make it more reusable.

### Promises

Promises are a way to handle asynchronous code in a more organized and predictable way. They allow developers to write code that runs in the background and then returns a value when it's finished.

## Conclusion

ECMAScript is a powerful scripting language that has revolutionized the way we create web applications. It provides a standard way of writing complex applications that can run on any platform or device. The constant evolution of ECMAScript and the addition of new features ensure that it will remain a popular choice for developers for years to come.