For questions related to ReasonML, an ML-variant with a syntax friendly to JavaScript developers.
For questions related to ReasonML, an ML-variant with a syntax friendly to JavaScript developers.
Questions tagged [reasonml]
6 questions
14
votes
2 answers
How do I declare a map type in Reason ML?
One advantage of Reason ML over JavaScript is that it provides a Map type that uses structural equality rather than reference equality.
However, I cannot find usage examples of this.
For example, how would I declare a type scores that is a map of…
sdgfsdh
- 33,689
- 26
- 132
- 245
6
votes
2 answers
graphql reason-apollo - recursive parsing of options
I'm using Reason-Apollo to parse a pretty nested GraphQL response from my server. I'm having trouble parsing the hairy tree of options returned from my GraphQL server (I'm using django-graphene).
Here is the GraphQL query and the Reason React…
Myer
- 3,670
- 2
- 39
- 51
5
votes
1 answer
Error while compiling reducerComponent "Is this a ReasonReact reducerComponent or component with retained props?"
I'm getting an error when creating a reducerComponent:
Code
type state = {repoData: RepoData.repo};
let dummyRepo: RepoData.repo = {
stargazers_count: 27,
full_name: "jsdf/reason-react-hacker-news",
html_url:…
Ashley Coolman
- 11,095
- 5
- 59
- 81
4
votes
3 answers
Does ReasonML support async/await?
I have been going through the JS -> Reason cheatsheet on the Reason ML website. They are very helpful, but none cover the async/await syntax available in modern ES.
What is the Reason ML equivalent of this?
import fs from 'mz/fs';
// A cat-like…
sdgfsdh
- 33,689
- 26
- 132
- 245
3
votes
1 answer
What are the integer types and modules in Reason ML?
I was trying to write some code using the Int32 library, but I hit a type error:
let x : int = 7;
Int32.abs(x)
This has type:
int
But somewhere wanted:
int32
I was a bit surprised by this, because in other languages int is just an alias for…
sdgfsdh
- 33,689
- 26
- 132
- 245
1
vote
1 answer
Why is my Map type not exported by Reason?
Following this question, I have created a file (and hence module) that defines a concrete Map type:
/* Scores.re */
module StringMap = Map.Make({
type t = string;
let compare = compare
});
type scores = StringMap.t(int);
Now, I want to use…
sdgfsdh
- 33,689
- 26
- 132
- 245