February 2019
Beginner to intermediate
180 pages
4h 4m
English
Content preview from ReasonML Quick Start Guide
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Using the Belt standard library
The Reason standard library is actually the OCaml standard library. It was not created with JavaScript in mind. The Belt standard library was created by the same person who created BuckleScript—Hongbo Zhang—and ships with BuckleScript. Belt was made with JavaScript in mind and is especially known for its performance. The Belt standard library is accessed via the Belt module:
/* Belt standard library */let array = [|"first", "second", "third"|];Belt.Array.map(array, e => e ++ "-mapped");
The Belt standard library documentation can be found here:
https://bucklescript.github.io/bucklescript/api/Belt.html
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.