Avoid unnecessary if-else chains that only returns a boolean

문서 > 코드 분석 > Static Analysis Rules > Avoid unnecessary if-else chains that only returns a boolean

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Metadata

ID: javascript-best-practices/no-if-else-return

Language: JavaScript

Severity: Warning

Category: Best Practices

Description

This rule is designed to simplify your code by avoiding unnecessary if-else chains that only return a boolean. In JavaScript, it’s not necessary to use an if-else statement to return a boolean value from a function. Instead, you can return the result of the boolean expression. This makes your code shorter, cleaner, and easier to understand.

Non-Compliant Code Examples

function getFoo() {
  const foo = computeFoo();
  if (foo) {
    return true;
  } else {
    return false;
  }
}

Compliant Code Examples

function getFoo() {
  const foo = computeFoo();
  return foo;
}