6 August 2024

The forEach method is preferred in JavaScript for its readability and simplicity. It provides a more concise and clear way to iterate over arrays compared to traditional loops, avoiding the need for manual index management and reducing the risk of errors related to index handling. Additionally, forEach supports inline function definitions, promoting a functional programming style that emphasizes what should be done rather than how to do it. This method also prevents the accidental creation of global variables, as loop variables are scoped within the callback function. However, it's worth noting that forEach cannot be used to break out of the loop early, which might be a limitation in certain scenarios. Overall, forEach is an excellent choice for straightforward array iterations where the intent is clear and breaking the loop is not required.

Source code viewer
  1. const array = [1, 2, 3, 4, 5];
  2.  
  3. array.forEach(element => {
  4.   console.log(element);
  5. });
  6.  
  7. // Or
  8.  
  9. array.forEach((element, index) => {
  10.   console.log(index);
  11.   console.log(element);
  12. });
Programming Language: ECMAScript