Returning Boolean Values from Functions

You may recall from Comparison with the Equality Operator that all comparison operators return a boolean true or false value.

A common anti-pattern is to use an if/else statement to do a comparison and then return true/false:

function isEqual(a,b) {
if (a === b) {
return true;
} else {
return false;

Since === returns true or false, we can return the result of the comparison:

function isEqual(a,b) {
return a === b;


Fix the function isLess to remove the if/else statements.

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