Disallow new require (no-new-require)

不允许 new require (no-new-require)

The require function is used to include modules that exist in separate files, such as:

require 方法被用来引入不同文件中模块,例如:

var appHeader = require('app-header');

Some modules return a constructor which can potentially lead to code such as:


var appHeader = new require('app-header');

Unfortunately, this introduces a high potential for confusion since the code author likely meant to write:


var appHeader = new (require('app-header'));

For this reason, it is usually best to disallow this particular expression.


Rule Details

This rule aims to eliminate use of the new require expression.

此规则旨在消除使用 new require 的表达方式。

Examples of incorrect code for this rule:

错误 代码示例:

/*eslint no-new-require: "error"*/

var appHeader = new require('app-header');

Examples of correct code for this rule:

正确 代码示例:

/*eslint no-new-require: "error"*/

var AppHeader = require('app-header');
var appHeader = new AppHeader();

When Not To Use It

If you are using a custom implementation of require and your code will never be used in projects where a standard require (CommonJS, Node.js, AMD) is expected, you can safely turn this rule off.

如果你使用一个自定义的 require 方法,而且代码永远不会在项目中使用标准 require (CommonJS、Node.js、AMD),你可以关闭此规则。


This rule was introduced in ESLint 0.6.0.

该规则在 ESLint 0.6.0 被引入。