hashmap VS go

Compare hashmap vs go and see what are their differences.


A Golang lock-free thread-safe HashMap optimized for fastest read access. (by cornelk)


The Go programming language (by golang)
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hashmap go
8 1957
1,626 114,505
- 1.3%
5.3 9.9
about 2 months ago 7 days ago
Go Go
Apache License 2.0 BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of hashmap. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-02-01.


Posts with mentions or reviews of go. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-09-26.
  • macOS Containers v0.0.1
    22 projects | news.ycombinator.com | 26 Sep 2023
  • The Top 20 Programming Languages and Their Origins
    7 projects | dev.to | 24 Sep 2023
  • Fixing for Loops in Go 1.22
    13 projects | news.ycombinator.com | 19 Sep 2023
    Have you looked for any evidence? There is plenty.

    Sum types have been discussed since before the initial open source release of the language, at least according to some of the issue threads such as https://github.com/golang/go/issues/19412

    If they're laughably simple, then please contribute a proposal for how to add them to the language. You'll find no one is really fighting against the concept of sum types.

    13 projects | news.ycombinator.com | 19 Sep 2023
    I agree that there are no objective measure. I guess it's just different expectations.

    I would not say it's obvious what the machine is doing in the Go example though. For example it wasn't clear to me that append() mostly doesn't copy the full vector, but does a copy of the slice pointer. I had to look it up from a blog post, because the source for append() is gnarly


    13 projects | news.ycombinator.com | 19 Sep 2023
    jaredpar on the C# team offered the very first comment on the Github issue for this proposal: https://github.com/golang/go/discussions/56010

    I think it played a large part in helping get past the default-deny that any language change proposal should have. The other big one for me was the scan done over the open source code base and the balance of bugs fixed versus created.

    13 projects | news.ycombinator.com | 19 Sep 2023
    Most commonly no impact. It can require an additional heap allocation per iteration if taking the address or capturing in a closure, but even in those cases escape analysis may be able to determine that the value can remain on the stack because it will not remain referenced longer than the current loop iteration. If that happens then this change has no impact.

    I'm not sure how thorough Go's escape analysis is, but nearly all programs that capture the loop variable in a closure and are not buggy right now could be shown to have that closure not escape by a sufficient thorough escape analysis. On the other hand for existing buggy programs, then perf hit is the same as assigning a variable and capturing that (the normal fix for the bug).

    Google saw no statistically significant change in their benchmarks or internal applications.


    13 projects | news.ycombinator.com | 19 Sep 2023
    This will crash if `foo()` returns nil, because it's checking if `x == interface{}(nil)`, which is false. What you wanted to check was whether `x == *bar{nil}` or one of the other nil types that implements the interface; which must be done with `reflect.ValueOf(x).IsNil()`.


  • Java 21 makes me like Java again
    22 projects | news.ycombinator.com | 16 Sep 2023
    I’m referring to this guideline:

    > Variable names in Go should be short rather than long. This is especially true for local variables with limited scope. Prefer c to lineCount. Prefer i to sliceIndex.


    22 projects | news.ycombinator.com | 16 Sep 2023
    > Plugins are currently supported only on Linux, FreeBSD, and macOS, making them unsuitable for applications intended to be portable.


    but, in all seriousness: I wonder why that is? I struggle to think of a technical reason that go would be unable to load and invoke a .dll even if one had to name it .so https://github.com/golang/go/blob/go1.21.1/src/plugin/plugin...

    22 projects | news.ycombinator.com | 16 Sep 2023
    You just add the -static argument, if you want a fully static executable that can run on any linux distro: ‘g++ -o main main.cpp -static’

    You can even go above and beyond with cosmopolitan libc v2, which makes c/c++ build-once run-anywhere: https://github.com/jart/cosmopolitan/releases/tag/2.0

    There seems to be some work getting cosmopolitan libc support in Go, but it is not ready like it is for c/c++: https://github.com/golang/go/issues/51900

What are some alternatives?

When comparing hashmap and go you can also consider the following projects:

v - Simple, fast, safe, compiled language for developing maintainable software. Compiles itself in <1s with zero library dependencies. Supports automatic C => V translation. https://vlang.io

TinyGo - Go compiler for small places. Microcontrollers, WebAssembly (WASM/WASI), and command-line tools. Based on LLVM.

zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.

Nim - Nim is a statically typed compiled systems programming language. It combines successful concepts from mature languages like Python, Ada and Modula. Its design focuses on efficiency, expressiveness, and elegance (in that order of priority).

Angular - The modern web developer’s platform

golang-developer-roadmap - Roadmap to becoming a Go developer in 2020

RxGo - Reactive Extensions for the Go language.

React - The library for web and native user interfaces

crystal - The Crystal Programming Language

sqlc - Generate type-safe code from SQL

grule-rule-engine - Rule engine implementation in Golang

rust - Empowering everyone to build reliable and efficient software.