How to delete unset the properties of a javascript object

Question

Possible Duplicates    How to unset a Javascript variable    How to remove a property from a javascript object       I m looking for a way to remove unset the properties of a JS object so they ll no longer come up if I loop through the object doing for  var i in myObject   How can this be done

User · Answer

To blank it   myObject  myVar   null    To remove it   delete myObject  myVar     as you can see in duplicate answers

User · Answer

simply use delete  but be aware that you should read fully what the effects are of using this    delete object index    true  object index    undefined   but if I was to use like so   var x   1    1 delete x    false x    1   but if you do wish to delete variables in the global namespace  you can use it s global object such as window  or using this in the outermost scope i e  var a    b   delete a    false delete window a    true delete this a    true   http   perfectionkills com understanding-delete   another fact is that using delete on an array will not remove the index but only set the value to undefined  meaning in certain control structures such as for loops  you will still iterate over that entity  when it comes to array s you should use splice which is a prototype of the array object   Example Array   var myCars new Array    myCars 0   Saab   myCars 1   Volvo   myCars 2   BMW     if I was to do   delete myCars 1     the resulting array would be     Saab   undefined   BMW     but using splice like so   myCars splice 1 1     would result in     Saab    BMW

[javascript] How to delete/unset the properties of a javascript object?

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