jquery - Javascript delete an object key array value - Stack Overflow

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I have this object:

object = {
   key:["1","2","3","4","5"],
   key2:["5","7","8","9"]
}

How do I delete an object key and how to delete an object key value ?

I have this object:

object = {
   key:["1","2","3","4","5"],
   key2:["5","7","8","9"]
}

How do I delete an object key and how to delete an object key value ?

• javascript
• jquery
• object

Share Improve this question Follow edited May 9, 2018 at 16:12 Narendra Jadhav 10.3k1515 gold badges3434 silver badges4444 bronze badges asked Sep 6, 2011 at 13:33 Filippo orettiFilippo oretti 49.8k9696 gold badges229229 silver badges351351 bronze badges

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3 Answers 3

Sorted by: Reset to default 19

For deleteing a property from an object you can use

delete object.key

For deleting an item from the array, you could use many methods, one of which is to make use of jQuery's grep method:

// removes "5" from the values
object.key2 = $.grep(object.key2,function(x) { return x != "5"});

Live examples: http://jsfiddle.net/rbREb/

How do I delete an object key and how to delete an object key value ?

Use the delete operator to remove a property from an Object.

delete object.key

Removing the property will remove its associated value (or at least mark it for garbage collection).

you can use delete object[key]. This will delete both the key and value

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