XeLabs/100-go-mistakes
2
0
Fork 0
mirror of https://github.com/teivah/100-go-mistakes.git synced 2026-06-20 16:45:56 +08:00
Code Issues Projects Releases Packages Wiki Activity

Japanese, content

Browse source
This commit is contained in:
Teiva Harsanyi 2023-10-10 19:22:17 +02:00
parent 555f9bbdb3
commit af8a2d0425
21 changed files with 1305 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

BIN
.cache/plugin/social/d15b238fcb5d7c473c9ad0a6aa4e7045.png Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 28 KiB

6
justfile Normal file
View file

@ -0,0 +1,6 @@
build:
mkdocs build
serve:
mkdocs serve
test:
mkdocs build && mkdocs serve

5
mkdocs.yml
View file

@ -49,9 +49,12 @@ extra:
- name: 🇬🇧 English
link: /
lang: en
- name: 🇨🇳 Chinese (Simplified)
- name: 🇨🇳 Chinese Simplified
link: /zh/
lang: zh
- name: 🇯🇵 Japanese (進行中)
link: /ja/
lang: ja
social:
- icon: fontawesome/brands/twitter
link: https://twitter.com/teivah

8
site/20-slice/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

8
site/28-maps-memory-leaks/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

8
site/404.html
View file

@ -172,7 +172,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

8
site/56-concurrency-faster/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

8
site/89-benchmarks/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

10
site/9-generics/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>
@ -980,7 +986,7 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<p>To handle the map, we defined two kinds of type parameters. First, the values can be of any type: <code>V any</code>. However, in Go, the map keys can’t be of any type. For example, we cannot use slices:</p>
<div class="language-go highlight"><pre><span></span><code><span id="__span-4-1"><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="kd">var</span><span class="w"> </span><span class="nx">m</span><span class="w"> </span><span class="kd">map</span><span class="p">[[]</span><span class="kt">byte</span><span class="p">]</span><span class="kt">int</span>
</span></code></pre></div>
<p>This code leads to a compilation error: <code>invalid map key type []byte</code>. Therefore, instead of accepting any key type, we are obliged to restrict type arguments so that the key type meets specific requirements. Here, being comparable (we can use <code>==</code> or <code>!=</code>). Hence, we defined <code>K</code> as <code>comparable</code> instead of <code>a``ny</code>.</p>
<p>This code leads to a compilation error: <code>invalid map key type []byte</code>. Therefore, instead of accepting any key type, we are obliged to restrict type arguments so that the key type meets specific requirements. Here, being comparable (we can use <code>==</code> or <code>!=</code>). Hence, we defined <code>K</code> as <code>comparable</code> instead of <code>any</code>.</p>
<p>Restricting type arguments to match specific requirements is called a constraint. A constraint is an interface type that can contain:</p>
<ul>
<li>A set of behaviors (methods)</li>

8
site/98-profiling-execution-tracing/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

BIN
site/assets/images/social/ja.png Normal file
View file

Binary file not shown.
Side by side

After

Width:  |  Height:  |  Size: 28 KiB

8
site/book/index.html
View file

@ -218,7 +218,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

8
site/chapter-1/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

8
site/external/index.html vendored
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

16
site/index.html
View file

@ -220,7 +220,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>
@ -3492,7 +3498,7 @@ One additional note: we must remember that the standard library has some existin
<h3 id="returning-a-nil-receiver-45">Returning a nil receiver (#45)</h3>
<details class="info" open="open">
<summary>TL;DR</summary>
<p>When returning an interface, be cautious about returning not a nil pointer but an explicit nil value. Otherwise, unintended consequences may result because the caller will receive a non-nil value.</p>
<p>When returning an interface, be cautious about not returning a nil pointer but an explicit nil value. Otherwise, unintended consequences may occur and the caller will receive a non-nil value.</p>
</details>
<!-- TODO -->
@ -3800,6 +3806,10 @@ the use case. However, we should see the two options as complementary. </p>
<li>However, if the response is written before or during the Kafka publication, the message shouldn’t be published.</li>
</ul>
<p>In the latter case, calling publish will return an error because we returned the HTTP response quickly.</p>
<details class="note" open="open">
<summary>Note</summary>
<p>From Go 1.21, there is a way to create a new context without cancel. <a href="https://pkg.go.dev/context#WithoutCancel"><code>context.WithoutCancel</code></a> returns a copy of parent that is not canceled when parent is canceled.</p>
</details>
<p>In summary, propagating a context should be done cautiously.</p>
<p><a href="https://github.com/teivah/100-go-mistakes/tree/master/src/09-concurrency-practice/61-inappropriate-context/main.go">Source code <span class="twemoji"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 .297c-6.63 0-12 5.373-12 12 0 5.303 3.438 9.8 8.205 11.385.6.113.82-.258.82-.577 0-.285-.01-1.04-.015-2.04-3.338.724-4.042-1.61-4.042-1.61C4.422 18.07 3.633 17.7 3.633 17.7c-1.087-.744.084-.729.084-.729 1.205.084 1.838 1.236 1.838 1.236 1.07 1.835 2.809 1.305 3.495.998.108-.776.417-1.305.76-1.605-2.665-.3-5.466-1.332-5.466-5.93 0-1.31.465-2.38 1.235-3.22-.135-.303-.54-1.523.105-3.176 0 0 1.005-.322 3.3 1.23.96-.267 1.98-.399 3-.405 1.02.006 2.04.138 3 .405 2.28-1.552 3.285-1.23 3.285-1.23.645 1.653.24 2.873.12 3.176.765.84 1.23 1.91 1.23 3.22 0 4.61-2.805 5.625-5.475 5.92.42.36.81 1.096.81 2.22 0 1.606-.015 2.896-.015 3.286 0 .315.21.69.825.57C20.565 22.092 24 17.592 24 12.297c0-6.627-5.373-12-12-12"/></svg></span></a></p>
<h3 id="starting-a-goroutine-without-knowing-when-to-stop-it-62">Starting a goroutine without knowing when to stop it (#62)</h3>
@ -3867,7 +3877,7 @@ the use case. However, we should see the two options as complementary. </p>
<p>Understanding that <code>select</code> with multiple channels chooses the case randomly if multiple options are possible prevents making wrong assumptions that can lead to subtle concurrency bugs.</p>
</details>
<p>One common mistake made by Go developers while working with channels is to make wrong assumptions about how select behaves with multiple channels.</p>
<p>For example, let's consider the following case (<code>disconnectCh</code> is a buffered channel):</p>
<p>For example, let's consider the following case (<code>disconnectCh</code> is a unbuffered channel):</p>
<div class="language-go highlight"><pre><span></span><code><span id="__span-40-1"><a id="__codelineno-40-1" name="__codelineno-40-1" href="#__codelineno-40-1"></a><span class="k">go</span><span class="w"> </span><span class="kd">func</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-40-2"><a id="__codelineno-40-2" name="__codelineno-40-2" href="#__codelineno-40-2"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="p">&lt;</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
</span><span id="__span-40-3"><a id="__codelineno-40-3" name="__codelineno-40-3" href="#__codelineno-40-3"></a><span class="w"> </span><span class="nx">messageCh</span><span class="w"> </span><span class="o">&lt;-</span><span class="w"> </span><span class="nx">i</span>

1179
site/ja/index.html Normal file
View file

File diff suppressed because it is too large Load diff

8
site/jobs/index.html
View file

@ -218,7 +218,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>

2
site/search/search_index.json
View file

File diff suppressed because one or more lines are too long

29
site/sitemap.xml
View file

@ -2,62 +2,67 @@
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>https://100go.co/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/20-slice/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/28-maps-memory-leaks/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/56-concurrency-faster/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/89-benchmarks/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/9-generics/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/98-profiling-execution-tracing/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/book/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/chapter-1/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/external/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/ja/</loc>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/jobs/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>https://100go.co/zh/</loc>
<lastmod>2023-09-29</lastmod>
<lastmod>2023-10-10</lastmod>
<changefreq>daily</changefreq>
</url>
</urlset>

BIN
site/sitemap.xml.gz
View file

Binary file not shown.

8
site/zh/index.html
View file

@ -216,7 +216,13 @@ This repo is open to <a href="https://hacktoberfest.com/">Hacktoberfest</a>!
<li class="md-select__item">
<a href="/zh/" hreflang="zh" class="md-select__link">
🇨🇳 Chinese (Simplified)
🇨🇳 Chinese Simplified
</a>
</li>
<li class="md-select__item">
<a href="/ja/" hreflang="ja" class="md-select__link">
🇯🇵 Japanese (進行中)
</a>
</li>