For instance:
arr.forEach(func) – func is executed by forEach for every array item.
setTimeout(func)… Here in forEach… The error occurs because forEach
Besides that, Map has a built-in forEach method, similar to Array:… Iteration over Set.We can loop over a set either with for..of or using forEach:… The callback function passed in forEach has 3 arguments: a value, then the same value valueAgain, and… That’s for compatibility with Map where the callback passed forEach has three arguments.
No need to think about the meaning of the brackets [] and forEach
reduce/reduceRight.When we need to iterate over an array – we can use forEach… To iterate over elements:
forEach(func) – calls func for every element, does not return anything.