Comments (2)
Personally, I am a fan of let
, as it helps visually clarify the scope in which a variable is defined. Moreover, while Grain does not currently have traditional mutation, sticking with the keyword increases the language's syntactic flexibility on that front in the future.
As @ospencer implies, however, a lot of it really boils down to preference. I don't want to totally count out let
-less Grain, but I'm not totally sure we want to take that route at this moment.
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It's not technically necessary.
It's more of a developer familiarity thing, since the people who would want to use Grain are probably pretty familiar with JavaScript or an ML language where let
is pretty comfortable.
You could definitely argue that Python doesn't require it and gets along just fine (and it would be even more clear in Grain since reassignments aren't allowed without using a box).
It's something to consider, for sure.
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Related Issues (20)
- Lang: re-providing modules fails
- Lang: re-provided type from one module incompatible with origin module
- LSP: Unused Statements HOT 2
- Oprint NYI error on exceptions
- make testing not rely on stdlib
- Compiler: Parrellel Compiltion HOT 1
- Syntax: Add `_` for unused pattern matches HOT 2
- Premature optimization of modules with side effects HOT 1
- Considering constraining includes
- Separate wasm compilation in CLI runner and add specific error message HOT 10
- Syntax: Support addition on arr
- Use in browser with js and access dom HOT 1
- By default, nested functions can change state of parent function and items in its scope HOT 1
- Warn or prevent against outright prima facie function mutation HOT 2
- Method to pass named arguments from call to function HOT 1
- Simple way to get user (standard user keyboard input) HOT 1
- Tail-call-optimization broken in current builds 0.6+ HOT 3
- How to read a file HOT 2
- lsp: Show graindoc on hover
- allow parameters to be marked as mutable
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