disallow negated conditions (no-negated-condition)
Negated conditions are more difficult to understand. Code can be made more readable by inverting the condition instead.
Rule Details
This rule disallows negated conditions in either of the following:
if
statements which have anelse
branch- ternary expressions
Examples of incorrect code for this rule:
/*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
Examples of correct code for this rule:
/*eslint no-negated-condition: "error"*/
if (!a) {
doSomething();
}
if (!a) {
doSomething();
} else if (b) {
doSomething();
}
if (a != b) {
doSomething();
}
a ? b : c
Version
This rule was introduced in ESLint 1.6.0.