Crystal: Feature Request: Mutable NamedTuple

[ansarizafar]

Mutable NamedTuple are easy to understand, define (user = {count: Int32, name: String}) and use, especially for Developers coming from Nodjes/Javascript.

In my opinion, many Nodejs developers would like to switch after V1 release as less memory/CPU usage and performance gains will be huge.

[faustinoaq]

Hi, I'm developer coming from Python world.

I think currently we have inmutable and mutable sequences:

Inmutable sequences: just like Python Tuples, is a bit difficult to understand by Ruby a JS developers because those languages don't have inmutable sequences by default.

• Tuple
• NameTuples

Mutable sequences: just like any other dynamic sequence in almost all imperative programming languages.

• Array
• Hash

I think we just need a better documentation :wink:

[faustinoaq]

@ansarizafar also see: https://crystal-lang.org/2016/05/17/crystal-0.17.0-released.html

[crisward]

I am also from a JS background. I think the confusion comes from the braces { }, us JS devs love our braces :wink:

Hashes just don't look like js objects, and the use of fat arrows, look either like an ES2015 function definition or a PHP array.

As @faustinoaq says, this is more a docs issue.

[mverzilli]

Thanks @faustinoaq and @crisward for addressing this. Closing.