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kesla/gist:3378547

Created August 17, 2012 12:52
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.map(parseInt) fails
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gistfile1.js
['1', '2'].map(parseInt)
// output [1, NaN]
['1', '2'].map(Number)
// output [1, 2]
Why?
@dslming
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dslming commented Aug 6, 2018

  1. when parseInt() receive second param, and this param is illegal, the result is fails.
  2. Function map() will send 3 params to parseInt, is value, index and array.

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