# How to manipulate in can.Map data returned from server/fixture?

**URL:** <https://forums.bitovi.com/t/how-to-manipulate-in-can-map-data-returned-from-server-fixture/274>\
**Category:** CanJS\
**Created:** [May 19, 2016, 10:54pm UTC](https://forums.bitovi.com/t/how-to-manipulate-in-can-map-data-returned-from-server-fixture/274 "2016-05-19T22:54:46Z")\
**Posts on this page:** 1\
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**Author:** ![pYr0x](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.bitovi.com/pyr0x/32/95_2.png) [@pYr0x](https://forums.bitovi.com/u/pYr0x)\
**Post date:** [May 22, 2016, 11:23am UTC](https://forums.bitovi.com/t/how-to-manipulate-in-can-map-data-returned-from-server-fixture/274/2 "2016-05-22T11:23:21Z")

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here is a thread i posted… [How can i predefine a new can.connect instance to a available set](http://forums.bitovi.com/t/how-can-i-predefine-a-new-can-connect-instance-to-a-available-set/235)  
it is about adding a new item to a List  
here is a working example… it is done with can.connect, which is more future proof 😉  
[http://jsbin.com/zomuyelipi/1/edit?html,js,output](http://jsbin.com/zomuyelipi/1/edit?html,js,output)

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