How to use 'js foreach index' in JavaScript

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292static forEachIndexed(array, action) {
293 for (var tI = 0; tI < array.length; tI++) {
294 action(tI, array[tI]);
295 }

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77function iterate(index, array, result) {
78 if (index >= array.length) {
79 return result;
80 } else return callback(array[index], index).then(function (res) {
81 result.push(res);
82 return iterate(index + 1, array, result);
83 });

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