There are several reasons for a function not to have a function body:
- It is an unintentional omission, and should be fixed to prevent an unexpected behavior in production.
- It is not yet, or never will be, supported. In this case an exception should be thrown in languages where that mechanism is available.
- The method is an intentionally-blank override. In this case a nested comment should explain the reason for the blank override.
Noncompliant Code Example
function foo() {
}
var foo = () => {};
Compliant Solution
function foo() {
// This is intentional
}
var foo = () => {
do_something();
};
Exceptions
- This rule does not apply to function expressions and arrow functions as they can denote default values.
static defaultProps = {
listStyle: () => {}
};
- The rule allows for empty functions with a name starting with the prefix
on like onClick.
function onClick() {
}
