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Understanding Bit Arrays in Gleam: A Comprehensive Guide to Binary Data Syntax

By

crowdhailer

5mo ago· 10 min readen

Summary

This article is a comprehensive guide to bit arrays in the Gleam programming language, explaining how this special syntax (inherited from Erlang) allows for constructing and pattern matching on binary data. The author notes that while bit arrays are powerful, the documentation is sparse and there's ambiguity about how they work since Gleam's syntax differs from Erlang's. The guide aims to make this feature easier to understand and use effectively.

Key quotes

· 5 pulled
Gleam has a special piece of syntax that most other languages don't: Bit arrays.
Taken from Erlang, bit array syntax allows the constructing and pattern matching on binary data.
Bit arrays are extremely powerful, but unfortunately the documentation is a little sparse.
The syntax isn't exactly the same as on Erlang, so there's some ambiguity as to how it exactly works.
To make it easier, I wanted to write a comprehensive guide, to make it as easy as possible to understand how they work.
Snippet from the RSS feed
Gleam has a special piece of syntax that most other languages don't: Bit arrays. Taken from Erlang, bit array syntax allows the constructing and pattern matching on binary data. Bit arrays are extremely powerful, but unfortunately the documentation is a l

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