Arrays, slices (and strings): The mechanics of 'append' - The Go Programming Language
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2026-07-26 10:01:15
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划选高亮2026-07-26 16:25:15
原文高亮摘录
“Even though the slice header is passed by value”
Whisper 随想笔记
This is exactly why slices feel like references even though they're not.
划选高亮2026-07-26 13:22:15
原文高亮摘录
“s important to understand that even though a slice contains a pointer”
Whisper 随想笔记
So it's like a struct with a pointer inside? That actually clears things up.
划选高亮2026-07-26 13:13:15
原文高亮摘录
“s important to understand that even though a slice contains a pointer”
Whisper 随想笔记
Yeah, took me a while to get that slices are values, not just pointers.
划选高亮2026-07-26 10:19:15
原文高亮摘录
“A slice is not an array.”
Whisper 随想笔记
Yeah, but honestly the distinction only bites you when you mess with append too much.
划选高亮2026-07-26 10:10:15
原文高亮摘录
“A slice is not an array.”
Whisper 随想笔记
Always forget this—then I wonder why changing a slice changes the original array.
划选高亮2026-07-26 10:01:15
原文高亮摘录
“A slice is not an array.”
Whisper 随想笔记
Wait, so a slice is like a view into an array, not the array itself? Mind blown.
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