Removing data from a variable

Question

I have a variable which carries information but i want to be able to remove the information some how.

I tried to set the .length = 0 but that didn't seem to work...

The current data of the variable (example data is):

var data = {"1":{"7":["310"],"22":["309"]}}

In english that is:

var data = {"X":{"Y":["ID"],"Y":["ID"]}}

So if i wanted to remove:

X: 1 Y : 22

The result of data would be:

var data = {"1":{"7":["310"]}};

This is what i tried:

data[X][Y].length = 0;

But that doesn't seem to work, any one understand how to do it?

Ignacio Vazquez-Abrams · Accepted Answer · 2012-05-02 03:14:05Z

3

js> var data = {"1":{"7":["310"],"22":["309"]}}
js> data
({1:{7:["310"], 22:["309"]}})
js> delete data[1][22]
true
js> data
({1:{7:["310"]}})

answered May 2, 2012 at 3:14

Ignacio Vazquez-Abrams

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3 Comments

Sir Over a year ago

Thanks thats the function i was looking for :) is there a similiar function to "add" or would i have to look the data to add to it (which is currently how i do it but if theres a adding function that would strip some code chunks down :)

Ignacio Vazquez-Abrams Over a year ago

No; "adding" is already implemented via assigning, so there's no quick way (unless you find the JavaScript equivalent of collections.defaultdict).

Sir Over a year ago

Ah so my loop to "push" to it is the only way to do it ?

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