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for-direction

Enforce "for" loop update clause moving the counter in the right direction

Recommended

The "extends": "eslint:recommended" property in a configuration file enables this rule

规则细节

一个有停止条件的 for 循环永远不会达到,比如一个向错误方向移动的计数器,将无限地运行。虽然在某些情况下会出现无限循环,但惯例是将这种循环构造为 while 循环。更典型的是,无限 for 循环是一个错误。

使用此规则的错误示例:

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/*eslint for-direction: "error"*/
for (var i = 0; i < 10; i--) {
}

for (var i = 10; i >= 0; i++) {
}

for (var i = 0; i > 10; i++) {
}

使用此规则的正确示例:

Open in Playground
/*eslint for-direction: "error"*/
for (var i = 0; i < 10; i++) {
}

Version

This rule was introduced in ESLint v4.0.0-beta.0.

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