规则名 | 规则类型 |
---|---|
no-new |
suggestion |
The goal of using new
with a constructor is typically to create an object of a particular type and store that object in a variable, such as:
var person = new Person();
It's less common to use new
and not store the result, such as:
new Person();
In this case, the created object is thrown away because its reference isn't stored anywhere, and in many cases, this means that the constructor should be replaced with a function that doesn't require new
to be used.
This rule is aimed at maintaining consistency and convention by disallowing constructor calls using the new
keyword that do not assign the resulting object to a variable.
此规则的 错误 代码实例:
/*eslint no-new: "error"*/
new Thing();
此规则的 正确 代码实例:
::: correct
/*eslint no-new: "error"*/
var thing = new Thing();
Thing();