String at

Help & Support
1

Hi,

Decided to upgrade to 0.33.0, but getting undefined method ‘at’ for String
Example

x = "hello"
s = x.at(2)
2

Hi!

Check the Changelog

String#at was deprecated in version 0.29.0 and eventually removed in 0.33.0. You can use x[2] instead.

Out of curiosity: didn’t you see this deprecation warning? Or maybe you upgraded your code from a really old Crystal version right to 0.33.0?

3

Hi,
I am/was using Crystal 0.30 since last year. I did not have any problems using String at, no deprecation warnings at all, just this message.


 123 | t << s.at(i)
              ^-
Error: undefined method 'at' for String

My installation method is a bit different, I downloaded the 64 bits deb and manually installed it.
I did not use sudo apt-get install crystal.

But I changed the code, and I am running all my specs.

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