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Why does the $.map function return a flatten array? #1334

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dongliang1993 opened this issue Mar 6, 2018 · 1 comment

dongliang1993 commented Mar 6, 2018

Zepto:
$.map([1, 2, [3, 4]], val => val)
// return [1, 2, 3, 4]
ES6:
[1,2,[3,4]].map(val => val)
// return [1, 2, [3,4]]

watnab commented Sep 5, 2018

Zepto may intend to be compatible with jQuery not ES6.

http://api.jquery.com/jquery.map/

The function can return:
an array of values, which will be flattened into the full array

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