How to set default values for parameters in function in Javascript?

Default Parameters:

1. function myFunction(x, y) {
2. if (y === undefined) { y = 2;
3. }
4. }

javascript default parameters

function multiply(a, b = 1) {
  return a * b;
}

javascript default function parameter value

function multiply(a, b) {
  b = (typeof b !== 'undefined') ?  b : 1
  return a * b
}

Conclusion

In this page (written and validated by A. Gawali) you learned about . What's Next? If you are interested in completing Javascript tutorial, we encourage you simply to start here: Javascript Tutorial.

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