Update mapSeries.js #80
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Using Array(length) with .concat does not work. Updated the code so it initializes with a 0 length array.
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Here an array is being created with a set length:
bluebird-api/promiseFns/mapSeries.js
Line 6 in 1f02a97
The concat function adds an item to array and increments length. Either ret[index] = value should be used or the length of the array should be initialized to 0.
bluebird-api/promiseFns/mapSeries.js
Line 10 in 1f02a97