no-negated-condition.md

规则名	规则类型
no-negated-condition	suggestion

Negated conditions are more difficult to understand. Code can be made more readable by inverting the condition instead.

规则详解

This rule disallows negated conditions in either of the following:

• if statements which have an else branch
• ternary expressions

此规则的 错误 代码实例：

/*eslint no-negated-condition: "error"*/

if (!a) {
    doSomething();
} else {
    doSomethingElse();
}

if (a != b) {
    doSomething();
} else {
    doSomethingElse();
}

if (a !== b) {
    doSomething();
} else {
    doSomethingElse();
}

!a ? c : b

此规则的 正确 代码实例：

::: correct

/*eslint no-negated-condition: "error"*/

if (!a) {
    doSomething();
}

if (!a) {
    doSomething();
} else if (b) {
    doSomething();
}

if (a != b) {
    doSomething();
}

a ? b : c