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10 Killer Elixir Tips #8

Do the things every day, you will find better

Photo by Alexander Mils on Unsplash

Hey guys!
Welcome back to another set of killer elixir tips.

Check out the previous articles of this series
Killer Elixir Tips#1 #2 #3 #4 #5 #6 #7

I am using the following development stack at the moment of writing this article.

Hex:    0.18.1
Elixir: 1.7.3
OTP:    21.1.1

1— Replacing a Key in Map

I know, you might be thinking why some one would do that. I too had the same feeling until I met with a requirement in one of my previous projects where I was asked to replace address1 with address and some other keys as well. It is a huge one. I have to do change many keys as well.

I’m here with a simple map to keep it understandable. But, the technique is same.

The thing to remember is; be smart and stay long;

details = %{name: "john", address1: "heaven", mobile1: "999999999"}

The above map comprises of two weird keys address1 and mobile1 where we do workout on to take over them.

iex> details = %{name: "john", address1: "heaven", mobile1…