Javascript - possible to remove element of an associative array

Question

Is it possible to remove an element of a Javascript associative array (i.e., set back to native undefined)?

When I tried simply alert(array['knownKey']); array['knownKey']=undefined; alert(array['knownKey']); ... the second alert produced the literal undefined... whereas, the first alert returned nothing.

possible duplicate of [Delete a key from an associative array](http://stackoverflow.com/questions/1754777/delete-a-key-from-an-associative-array) — kennytm, Aug 13 '10 at 08:23

score 2 · Accepted Answer · answered Aug 13 '10 at 08:21

2

To actually delete an element, use

delete array['knownkey'];

answered Aug 13 '10 at 08:21

kennytm

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very helpful coming from php dev perspective - lack of `unset()` – ina Aug 14 '10 at 02:27

Javascript - possible to remove element of an associative array

1 Answers1