Ruby hash merge (Add element to Ruby hash)

May 10, 2007 at 2:04 pm · Filed under Ruby Hash

This sample shows how to add element to ruby hash

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5 Comments »

Xin said,

August 10, 2007 @ 12:39 am

Thanks for this example. Though it is simple, I found it useful.
Anthony said,

November 16, 2007 @ 8:47 am

Thank you, this is exactly what I was looking for.
Hamza Khan-Cheema said,

January 2, 2008 @ 1:11 am

Hi,

Thanks, for this,

You may also want to mention that if there is a duplicate key in the new hash, it will overwrite the original hash.

So if I did this on the original hash:

users_hash.merge(”tom” => “changed_password”)

It would change the original hash , thus changing tom’s password to be ‘changed_password’.

Hamza
Andrei said,

January 3, 2008 @ 8:32 am

users_hash[key] = value

Why not this method?
Luke said,

August 17, 2008 @ 1:24 pm

@Andrei, because that method merges one specific key only while the described method merges hashes of any size together.