no-negated-condition

📝 Disallow negated conditions.

💼 This rule is enabled in the following configs: ✅ recommended, ☑️ unopinionated.

🔧 This rule is automatically fixable by the --fix CLI option.

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

This is an improved version of the no-negated-condition ESLint rule that makes it automatically fixable. ESLint did not want to make it fixable.

Examples

// ❌
if (!a) {
	doSomethingC();
} else {
	doSomethingB();
}

// ✅
if (a) {
	doSomethingB();
} else {
	doSomethingC();
}

// ❌
if (a !== b) {
	doSomethingC();
} else {
	doSomethingB();
}

// ✅
if (a === b) {
	doSomethingB();
} else {
	doSomethingC();
}

// ❌
!a ? c : b

// ✅
a ? b : c

// ❌
if (a != b) {
	doSomethingC();
} else {
	doSomethingB();
}

// ✅
if (a == b) {
	doSomethingB();
} else {
	doSomethingC();
}

// ✅
if (!a) {
	doSomething();
}

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

// ✅
if (a != b) {
	doSomething();
}