Behaviour of javascript split if separator not contained in string

Question

What is the proper behaviour of

"test".split("/")

Should the result be ["test"] or undefined? I am asking because I get different results for two different javascript engines. Most browsers seem to return ["test"], so I wonder if the deviating behaviour should be considered a bug.

What browser gives different behaviour?

TommyBs
– TommyBs

2013-05-17 09:31:30 +00:00
Commented May 17, 2013 at 9:31 — TommyBs
– TommyBs, Commented May 17, 2013 at 9:31

Alnitak · Accepted Answer · 2013-05-17 09:33:06Z

3

The ES5 specification for String.prototype.split does not allow for any return result other than an array, so undefined is not correct.

answered May 17, 2013 at 9:33

Alnitak

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