Javascript regex to remove character and number from string

Question

I have this String that I need to remove the underscore number from all words that contain them.

"View":{"Name":"Untitled-4","Image_1":{"BackgroundImage":"Image.png","Position":[0,0],"Width":320,"Height":480},"Button_1":{"BackgroundImage":"ButtonTop.png","Position":[61,83],"Width":217,"Height":58},"Button_2":{"BackgroundImage":"ButtonBottom.png","Position":[81,114],"Width":205,"Height":73},"TextField_1":{"BackgroundImage":"TextFieldLogin.png","Position":[102,336],"Width":189,"Height":31},"Label_1":{"Position":[137,100],"Width":54,"Height":20,"Text":"HiRob","FontSize":18,"Color":[0,0,0,1]},"Label_2":{"Position":[43,342],"Width":72,"Height":20,"Text":"LogOut:","FontSize":18,"Color":[0,0,0,1]},"Label_3":{"Position":[115,234],"Width":126,"Height":20,"Text":"AnotherButton","FontSize":18,"Color":[0,0,0,1]}}

I output i am looking for is:

"View":{"Name":"Untitled-4","Image":{"BackgroundImage":"Image.png","Position":[0,0],"Width":320,"Height":480},"Button":{"BackgroundImage":"ButtonTop.png","Position":[61,83],"Width":217,"Height":58},"Button":{"BackgroundImage":"ButtonBottom.png","Position":[81,114],"Width":205,"Height":73},"TextField":{"BackgroundImage":"TextFieldLogin.png","Position":[102,336],"Width":189,"Height":31},"Label":{"Position":[137,100],"Width":54,"Height":20,"Text":"HiRob","FontSize":18,"Color":[0,0,0,1]},"Label":{"Position":[43,342],"Width":72,"Height":20,"Text":"LogOut:","FontSize":18,"Color":[0,0,0,1]},"Label":{"Position":[115,234],"Width":126,"Height":20,"Text":"AnotherButton","FontSize":18,"Color":[0,0,0,1]}}

This looks far too much like JSON. Are you sure you don't want to apply the removing only on keys? — Bergi
– Bergi, Commented Jan 13, 2013 at 21:48
Not only does it look like JSON, but the applied transformation will turn it into illegal JSON (a JSON object cannot have duplicate keys, see RFC 4627) — fge
– fge, Commented Jan 13, 2013 at 22:46
This is solved below, but the reason we have the numbering on there is to keep it unique when it is used as JSON, and then we strip the numbering out when its stored as a string in a db. We cannot have it structured any other way due to some other dependencies. — Rob
– Rob, Commented Jan 14, 2013 at 2:30

Denys Séguret · Accepted Answer · 2013-01-13 21:46:32Z

2

You can do

var replaced = str.replace(/_\d+/g, '')

answered Jan 13, 2013 at 21:46

Denys Séguret

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