<p>I just want to know if there is a way in go to expand a map. A bit like python's append() function thanks in advance</p> <hr/>**评论：**<br/><br/>natefinch: <pre><pre><code>m := map[string]bool{ "foo" : true } m["bar"] = false </code></pre> <p>...阅读全文
<p>Hello folks, I'm learning Go, coming from Python and some NodeJS, I just fell in love with how easy it is to distribute self sufficient binaries in Go and how fast it is, two features that are important at my job.</p> <p>I've written a little script to monitor license usage for a software I work with, but I fee...阅读全文
<p>Hi</p> <p>I am trying to build a package, but build.go (version 1.6.3) fails with this message:</p> <pre><code>can't build package messages because it contains C++ files (xxx.pb.cc,yyy.pb.cc, [...etc.]) but it's not using cgo nor SWIG </code></pre> <p>The source files for t...阅读全文
<p>I'm a new gopher. Following my first book on Go - writing the sample code doing all the exercises - I decided to jump in to a study of data-structures and algorithms. </p> <p>I started easy. Bubble sort first then progressed to insertion sort, followed by merge sort. I decided to tinker with the different algorithms - ...阅读全文
<p><a href="https://github.com/ascheglov/go/pull/1/files">Here's a patch which adds a "Rust-style" <code>__try</code> keyword</a>.</p> <p>It transforms <code>x, y := __try foo()</code> into </p> <pre><code>x, y, __err := foo() if __err != nil ...阅读全文
<p>Hey gophers,</p> <p>I'm currently in the process of writing a <a href="https://github.com/MaxHalford/xgp">genetic programming lib for machine learning</a> in Go. I'm nearly done with coding bindings for Python but I just have one last problem. </p> <p>The Python package is <a...阅读全文
<p>It's super simple: It queuries alphavantage for given stocks, and exposes it on a REST api.</p> <p>It uses a JWT from Firebase users linked to the project to validate queuries, and it can be automatically deployed to Google Cloud App Engine. It does a lot of things in that small amount of code, I think.</p> <...阅读全文
<p>I was going through <a href="https://benchmarksgame.alioth.debian.org/u64q/regexredux.html">this</a> for the hell of it, and I saw that Go is generally quite quick. But there were a few outliers, and the most notable one for me was the regex code which was blown away by a ton of languages.</p> <hr/>**评论：**&...阅读全文
<p>So I am looking to expand into the world of DevOps. Many years back I did server monitoring then stepped out of it. The climate changed a bit, I remember Perl and Python being big but my current company uses Ruby so that's something I have to deal with. </p> <p>I personally do some stuff with Docker and my company is a...阅读全文
<p>Hello, Ive briefly fiddled with golang and really like it so far. I love the simplicity of go routines. I work mostly with large python projects at work and have been thinking of starting to implement go instead. However, most of the projects I read about use go to do web development. I understand that go was designed for that application ...阅读全文
<p>Basically, user provides a list of files to copy from dest1 to dest2. rsync is fired off by pressing the submitting the button, and I want the realtime output of STDOUT/STDERR display in the same page. I would also be saving this execution as a blob in a MySQL DB. WebSockets?</p> <hr/>**评论：**<br/><br/>AG_Clinton: &l...阅读全文
<p>I came across these articles by Dave Cheney this morning entitled <a href="https://dave.cheney.net/2017/06/15/simplicity-debt">Simplicity Debt</a> and <a href="https://dave.cheney.net/2017/06/18/simplicity-debt-redux">Simplicity Debt Redux</a>. </p> <p>Dave makes an argument for generics...阅读全文
<p>I've recently moved from python to node and Im enjoying it however it doesn't support multithreading. I'm working on a project that entails webscraping and automating using electron. I want to make a web app that can withstand hundreds of users without effecting the performance too much as speed is extremely importa...阅读全文
<p>Anova Culinary is revolutionizing today's kitchen. Their product, the Anova Precision Cooker, was the #1 selling product on Amazon's Prime day for household goods and is expected to reach over 1,000,000 homes this year.</p> <p>Recently Anova was recently purchased by one of the largest appliance manufacturers i...阅读全文
<p>I have been looking into machine learning in Go and have come across some <a href="https://github.com/sjwhitworth/golearn" rel="nofollow">good looking machine learning libraries</a>, but am wondering how well built out the machine learning infrastructure is. Is it worth diving into Go for this, or should I stick...阅读全文
<p>Hi, I'm considering using Golang for my main language for web development, I'm trying to see if there is anything resembling Python's SQLAlchemy - basicly elliminating text query stitching (and to be clear I know SQL itself).</p> <p>And a web framework that would resemble Pyramid web framework functiona...阅读全文
<p>Hello everyone. I'm looking to learn to code as a hobby, so I'd like to get into a language that isn't too hard to understand for a beginner. I already studied the basics of Go, but I am very confused on Methods and Interfaces, it seems to me that the concept of Classes makes code easier to understand, so I'...阅读全文
<p>We currently have api built using Django Rest Framework which uses Gearman client + MySQL 5.7 in backend.Is it possible to migrate into Go and if we do migrate will it be faster than django. </p> <hr/>**评论：**<br/><br/>jackmott2: <pre><p>It might be faster than django if your code is currently slow becau...阅读全文
<p>I sort of get that aliases are going to help with package dependencies. Do similar problem exist in other languages like python?</p> <hr/>**评论：**<br/><br/>justinisrael: <pre><p>Python doesn't have static typing. So in python if you had a function that accepted a type and used it in a specific way...阅读全文
<p>I was really excited looking at what changed for go 1.8 until I saw plugins. Which, as far as I can see, are syntactic sugar to help you create shared libraries without getting your hand too dirty.</p> <p>For all its faults, golang has managed to get one thing right... its simple, to this date they've managed not to ad...阅读全文
<p>Hello, I am learning Go and I started by recreating the simple 'Egyptian Multiplication Algorithm', also known as the 'Russian Peasants Algorithm' </p> <p>my code:</p> <pre><code>package main import "fmt" func russian_peasants_algorithm(x, y int) (z int) { ...阅读全文
<p>Hi all! </p> <p>I am a 21 year old marketing student with love for tech who wants to create his own tech startup and from what I have seen and researched on the internet Golang is the way to go for the future despite Python being easier to learn with much more info.</p> <p>As Golang is relatively new, I haven&...阅读全文
<p>Hi all. I've written a good deal of code in Python, C, C#, Java, and Rust, and I'm having kind of a hard time with Go. It might be that I've been spending too much time in Rust, but for a compiled language, it seems like Go's type system is insufficiently expressive, what with the lack of either generics or ...阅读全文
Hi，大家好，我是明哥。 在自己学习 Golang 的这段时间里，我写了详细的学习笔记放在我的个人微信公众号 《Go编程时光》，对于 Go 语言，我也算是个初学者，因此写的东西应该会比较适合刚接触的同学，如果你也是刚学习 Go 语言，不防关注一下，一起学习，一起成长。 我的在线博客：http://golang.iswbm.com我的 Github：github.com/iswbm/GolangCodingTime Go里的流程控制方法还是挺丰富，整理了下有如下这么多种： if - else 条件语句 switch - case 选择语句 for - range 循环语句 goto 无条件跳转语句 defer 延迟执行 上一篇讲了switch - case 选择语句，今天先来讲讲 for 循环...阅读全文
Hi，大家好，我是明哥。 在自己学习 Golang 的这段时间里，我写了详细的学习笔记放在我的个人微信公众号 《Go编程时光》，对于 Go 语言，我也算是个初学者，因此写的东西应该会比较适合刚接触的同学，如果你也是刚学习 Go 语言，不防关注一下，一起学习，一起成长。 我的在线博客：golang.iswbm.com 我的 Github：github.com/iswbm/GolangCodingTime Go里的流程控制方法还是挺丰富，整理了下有如下这么多种： if - else 条件语句 switch - case 选择语句 for - range 循环语句 goto 无条件跳转语句 defer 延迟执行 上一篇讲了switch - case 选择语句，今天先来讲讲 for 循环语句。 0....阅读全文
本文始发于个人公众号：TechFlow，原创不易，求个关注 今天是Golang专题的第四篇，这一篇文章将会介绍golang当中的函数、循环以及选择判断的具体用法。 函数 在之前的文章当中其实我们已经接触过函数了，因为我们写的main函数本质上也是一个函数。只不过由于main函数没有返回值，也没有传参，所以省略了很多信息。 func main() { fmt.Println("Hello World") } 复制代码 下面，我们来看看一个完整的函数是怎样的，这是golang官网上的例子。 func add(x int, y int) int { return x + y } 复制代码 这是一个非常简单的a+b的函数，我想大家应该都能看懂。我们来重点关注一下函数的格式。首先是func关键字，我们...阅读全文
<p>Hey all, new to Go here but am starting to work on some new services which use it and got a question on testing and logging. Has anyone run into having to test log output with go or know of some resources that go into this with good practices etc. I've looked quite a bit online but haven't found anything concrete. Part of t...阅读全文
<p>What options are out there? I have played around with testify but it seems like the PRs on the GitHub repo are all quite stale? also I really want to be able to name my tests in snake case and not camel case.</p> <hr/>**评论：**<br/><br/>nemith: <pre><p>My suggestion is to not use an assertion library. Do...阅读全文
<p><a href="https://play.golang.org/p/76wJnzDXUK">https://play.golang.org/p/76wJnzDXUK</a></p> <table><thead> <tr> <th>Go</th> <th>n</th> <th>ns/op</th> <th>B/op</th> <th>allocs/op</th> </tr> </thead><tbody> <tr> &l...阅读全文
<p>tl;dr: Has anyone run into a problem with Go net/http and TLS where browser connections abort but other clients are fine?</p> <p>I haven't dug into the root cause for this, but I was curious if anyone else has seen this behavior. I have a standard net/http server with organization-signed key and cert PEM files (and i...阅读全文
<p>I'm looking for ideas for libraries that I could implement in Go for the benefit of the community and for my own learning experience.</p> <hr/>**评论：**<br/><br/>andradei: <pre><p>Native GUI libs</p></pre>natefinch: <pre><p>AFAIK we're still missing a code highlighti...阅读全文
<p>Python is pain to do this in...is it possible to do a lot of http requests easily in GO? With something similar to multiprocessing in GO?</p> <hr/>**评论：**<br/><br/>lolis5: <pre><p>Short answer is "very yes". The core net/http library uses goroutines for request handling, which allows for ...阅读全文
<p>Hey guys, I started learning GO because some of my favorite technologies are written in it (docker, ipfs, messaging services(nsq), kubernetes...) but to start with them would be a too big challenge. I worked with a lot of libraries with node/python/go but never looked into the sourcecode of the projects (just used it for application develo...阅读全文
<hr/>**评论：**<br/><br/>tv64738: <pre><p>It's been called serializing, too. Marshaling is nicer as a name, because these days, serializing often means ordering events in a (distributed) system.</p></pre>: <pre><p>[deleted]</p></pre>eid-a: <pre><p>So ? I've r...阅读全文
<p>If one wants to write software intended to be translated and run literally everywhere in whatever languages the user wants what are the current best practices?</p> <hr/>**评论：**<br/><br/>drvd: <pre><p>The stuff in golang.org/x/text and especially golang.org/x/text/message</p> <p>Be prepare for...阅读全文
<p>Hey everyone, great community first of all. Creating this thread to ask a career question (sorry if it sounds like a stupid question). </p> <p>I'm currently a junior developer that knows a bit of python and javascript (I use node + jquery/react at work). Go is on my list of languages to learn but I don't know w...阅读全文
<p>I'm new to go, coming mainly from Python. I wanted to know if there are any REST API frameworks that generate the API documentation as you build the code. The best example of this is <a href="http://www.django-rest-framework.org/">django-rest-framework</a>, <a href="http://flask-restful-swagger.readthedoc...阅读全文
<p>Hello all, I am using Go to do homework in a database class rather than my usual Python as a way to learn Go. So I've learned how to scan data from a query directly into a struct using sqlx, but I have a question on the structs themselves. The example database has these tables: Pets, Customers, Visits, Owner History. (It's ...阅读全文
<p>Hey <a href="/r/golang">/r/golang</a>,</p> <p>I just started learning ruby/rails about a month ago and noticed that Go has been picking up a lot of traction these days.</p> <p>While I enjoy the syntax of ruby and also the rails community, I'm curious if I should look into Go instead. My...阅读全文
<p>I am curious how do you people work with Go in an enterprise environments when you often need to talk to unknown (often shitty) SOAP endpoints or consume messages from proprietary MQs etc. How do you deal with it ?</p> <hr/>**评论：**<br/><br/>egonelbre: <pre><p>It really doesn't differ much from ot...阅读全文
<p>By script I mean:</p> <p> </p> <ol> <li><p>Write a <code>script.go</code></p></li> <li><p>Send it to the server</p></li> <li><p>Run the script on the server <code>go run script.go</code></p></li> <li><p>Edit...阅读全文
<p>So, I am confused. I am coming from a Python background and trying to learn Go. So, in Python I can do:</p> <pre><code>age_dict = {} age_dict[40] = [] age_dict[40].append(MyData(someone) age_dict[40].append(MyData(someonelse)) age_dict[2] = [MyData(kid)] </code></pre> <p>This would produce:</p>...阅读全文
<p>Hey all. I have been reading the interwebs today a lot of interfaces (+embedded structs) vs inheritance (like how Python might do it). Please be easy on me, I am just starting out with Golang (but love it so far).</p> <p>This example is really contrived, but I think it demonstrates the mental roadblock I am facing. The followi...阅读全文
本文始发于个人公众号：TechFlow，原创不易，求个关注 今天是golang专题的第五篇，这一篇我们将会了解golang中的数组和切片的使用。 数组与切片 golang当中数组和C++中的定义类似，除了变量类型写在后面。 比如我们要声明一个长度为10的int型的数组，会写成这样： var a [10]int 复制代码 数组的长度定义了之后不能改变，这点和C++以及Java是一样的。但是在我们日常使用的过程当中，除非我们非常确定数组长度不会发生变化，否则我们一般不会使用数组，而是使用切片(slice)。 切片有些像是数组的引用，它的大小可以是动态的，因此更加灵活。所以在我们日常的使用当中，比数组应用更广。 切片的声明源于数组，和Python中的list切片类似，我们通过指定左右区间的范围来声...阅读全文
<p>If Haskell is hard to learn, and Go is much easier to learn, especially for programmers experienced with C, C++, Java, Python, etc., is that alone a good enough reason to prefer Go over Haskell? Or are there other, better, reasons to take into account, when making such decisions?</p> <hr/>**评论：**<br/><br/>Shonucic:...阅读全文
