What does the arrow function syntax () => {} imply about the returned value?
Understand the Problem
The question is asking about the behavior of arrow function syntax in JavaScript, specifically regarding its return value. It requires an understanding of how arrow functions operate in terms of returning values, either implicitly or explicitly.
Answer
It implies no return value and results in `undefined`.
Arrow function syntax () => {} without a return or expression does not imply any returned value; it returns undefined.
Answer for screen readers
Arrow function syntax () => {} without a return or expression does not imply any returned value; it returns undefined.
More Information
When using arrow functions in JavaScript, if there's no expression in the body or an explicit return statement, the function returns undefined, similar to traditional functions.
Tips
A common mistake is assuming any value will be returned without an explicit return statement or expression in an arrow function.
Sources
- Arrow functions, the basics - The Modern JavaScript Tutorial - javascript.info
- Arrow function expressions - JavaScript - MDN Web Docs - developer.mozilla.org
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