Rename params

Rails
1

I access params from a controller.

I need to rename one of keys. key value to stay the same

Old name is :xx, value = ‘test’
New name is :yy, value = ‘test’

Simplest way to do this in one line of code?

2

This is technically not one line but you could do.
my_var = {xx: “test”}
my_var[:yy] = my_var[:xx]; my_var.delete(:xx)

Matt

3

On Tue, Apr 8, 2014 at 2:28 PM, Matthew W. [email protected]
wrote:

This is technically not one line but you could do.
my_var = {xx: “test”}
my_var[:yy] = my_var[:xx]; my_var.delete(:xx)

It becomes one line by:

my_var[:yy] = my_var.delete(:xx)

as Hash#delete returns the value at the specified key, or else nil
if there was no :xx key.