Remove literal boolean values from conditional expressions to improve readability. Anything that can be tested for equality with a boolean value must itself be a boolean value, and boolean values can be tested atomically.

Noncompliant Code Example

if (booleanVariable == true) { /* ... */ }
if (booleanVariable != true) { /* ... */ }
if (booleanVariable || false) { /* ... */ }
doSomething(!false);

booleanVariable = condition ? true : exp;
booleanVariable = condition ? false : exp;
booleanVariable = condition ?  exp : true;
booleanVariable = condition ?  exp : false;
booleanVariable = condition ?  true : false;

Compliant Solution

if (booleanVariable) { /* ... */ }
if (!booleanVariable) { /* ... */ }
if (booleanVariable) { /* ... */ }
doSomething(true);

booleanVariable = condition || exp;
booleanVariable = !condition && exp;
booleanVariable = !condition ||  exp;
booleanVariable = condition && exp;
booleanVariable = condition;