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yefremov/iterator.js

Last active February 20, 2017 16:40
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  1. yefremov revised this gist Feb 20, 2017. No changes.
  2. yefremov created this gist Feb 20, 2017.
    16 changes: 16 additions & 0 deletions iterator.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,16 @@

    function iterate(iterable) {
    var index = -1;
    return function next() {
    return ++index < iterable.length ? iterable[index] : null;
    }
    };

    function makeIterator(iterable) {
    var index = -1;
    return function next() {
    return ++index < iterable.length
    ? { value: iterable[index], key: index, next: next, done: false }
    : { done: true };
    };
    }