Javascript equivalent of Python's zip function

Question

Is there a javascript equivalent of Python\'s zip function? That is, given multiple arrays of equal lengths create an array of pairs.

For instance, if I have three

Answer 1

Modern ES6 example with a generator:

function *zip (...iterables){
    let iterators = iterables.map(i => i[Symbol.iterator]() )
    while (true) {
        let results = iterators.map(iter => iter.next() )
        if (results.some(res => res.done) ) return
        else yield results.map(res => res.value )
    }
}

First, we get a list of iterables as iterators. This usually happens transparently, but here we do it explicitly, as we yield step-by-step until one of them is exhausted. We check if any of results (using the .some() method) in the given array is exhausted, and if so, we break the while loop.