The basic data types in es6 include six types: "Number", "String", "Boolean", "Symbol", "null" and "undefined": 1., including integers and floating point numbers, used for Represents a numerical value; 2. String, used to represent text data; 3. Boolean, represents logical true or false; 4. Symbol, used as a unique identifier for object attributes; 5. null, represents a null value or non-existence Object; 6. undefined.
# Operating system for this tutorial: Windows 10 system, Dell G3 computer.
In ES6 (ECMAScript 2015), the basic data types have not changed from previous versions, and still include the following types:
Number (Number): including integers and floating point numbers, used to represent numerical values, such as: 42, 3.14.
String: used to represent text data, such as: "Hello, World!".
Boolean value (Boolean): represents logical truth or falsehood, that is, true or false.
Symbol: A new data type in ES6 that represents a unique value and is used as a unique identifier for object attributes.
In addition, a new basic data type was introduced in ES6:
- Null value (null): represents a null value or does not exist object.
In addition, there is a special basic data type:
- Undefined (undefined): represents an uninitialized variable value.
These basic data types are still the most basic and commonly used data types in JavaScript in ES6. They are used to store and process various data and are the basic building blocks of the JavaScript language.
The above is the detailed content of What are the basic data types in es6. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Dreamweaver Mac version
Visual web development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 Chinese version
Chinese version, very easy to use

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool