javascript foreach array position code example
Example 1: javascript enumerate with index
const iterable = [...];
for (const [index, elem] in iterable.entries()) {
f(index, elem);
}
// or
iterable.forEach((elem, index) => {
f(index, elem);
});
Example 2: forEach index
const array1 = ['a', 'b', 'c'];
array1.forEach((element, index) => console.log(element, index));