Golang Tips

Phuong LeによるGolang Tips

Xを徘徊していて有益そうなPostを見かけたのでまとめておく。ちゃんと読んだら別記事で翻訳しながら勉強したいと思っている。

#8, #10, #11, #24 は見つけられなかった。もしご存じの方あればコメントいただけると嬉しいです。

#	URL
1	[翻訳転載] Golang Tip #1: 1行のコードで関数の実行時間を計測する
2	[翻訳転載] Golang Tip #2: マルチステージdefer
3	[翻訳転載] Golang Tip #3: パフォーマンスを考慮したスライスの初期化
4	[翻訳転載] Golang Tip #4: 配列をスライスにパースする
5	[翻訳転載] Golang Tip #5: メソッドチェーン
6	[翻訳転載] Golang Tip #6: アンダースコア Import
7	[翻訳転載] Golang Tip #7: 三項演算子
8
9	[翻訳転載] Golang Tip #9: コンパイル時のインターフェイス検証
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11
12	[翻訳転載] Golang Tip #12: 鍵作成時はmath/randの使用を避ける
13	[翻訳転載] Golang Tip #13: 空スライスとnilスライス
14	[翻訳転載] Golang Tip #14: エラーメッセージを大文字で始めたり区切り記号で終えたりしない
15	When to use Dot (.) Import and Blank (_) Import
16	Don't Return -1 or nil to Indicate Error
17	Understanding "Return fast, return early" to avoid nested code
18	Define interfaces in the consumer package, not the producer
19	Avoid named results unless necessary for documentation
20	Pass values, not pointers
21	[翻訳転載] Golang Tip #21: ポインタレシーバの推奨
22	[翻訳転載] Golang Tip #22: 構造体やオプションパターンを使って関数のシグネチャをシンプルにする
23	Avoid repetition in naming
24
25	Prefer 'chan struct{}' over 'chan bool' for signaling between goroutines
26	Explicitly ignore values with blank identifier (_) instead of silently ignoring them
27	Filter without any allocation
28	Converting multiple if-else statements into switch cases
29	Avoid context.Background(), make your goroutines promisable
30	Keep contexts going with context.WithoutCancel()
31	Loop labels for cleaner breaks and continues
32	Scheduling functions after context cancellation with context.AfterFunc
33	Just... Don’t Panic()
34	Lead with context, end with options, and always close with an error
35	Prefer strconv over fmt for converting to/from string
36	Naming Unexported Global Variables with an Underscore (_) Prefix
37	Using Unexported Empty Struct as Context Key
38	Make your errors clear with fmt.Errorf, don't just leave them bare
39	Avoid defer in loops, or your memory might blow up
40	Handle errors while using defer to prevent silent failures
41	Sort your fields in your struct from largest to smallest
42	Single Touch Error Handling, Less Noise
43	Gracefully Shut Down Your Application
44	Intentionally Stop with Must Functions
45	Always Manage Your Goroutine Lifetime
46	Avoid using break in switch cases, except when paired with labels
47	Table-driven tests, subtests, and parallel tests
48	Avoid Global Variables, Especially Mutable Ones
49	Give the Caller the Right to Make Decisions
50	Make Structs Non-comparable
51	Avoid using init()
52	Adjusting GOMAXPROCS for Containerized Env (Kubernetes, Docker, etc.)
53	Enums start from 1 for categorization and 0 for default cases