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Clarify locations of performance info

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John Kerl 2022-11-26 18:32:16 -05:00
parent 6282bf1dcb
commit 36f3c3cb0f
62 changed files with 2076 additions and 33 deletions
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30
docs/src/reference-main-arrays.md
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@ -46,6 +46,9 @@ Array literals are written in square brackets braces with integer indices. Array
99,
true
]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
As with maps and argument-lists, trailing commas are supported:
@ -64,6 +67,9 @@ As with maps and argument-lists, trailing commas are supported:
</pre>
<pre class="pre-non-highlight-in-pair">
["a", "b", "c"]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
Also note that several [built-in functions](reference-dsl-builtin-functions.md) operate on arrays and/or return arrays.
@ -108,6 +114,9 @@ while positive indices read forward from the start. If an array has length `n` t
50
[10, 20]
[40, 50]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
## Slicing
@ -135,6 +144,9 @@ x[4], x[5]]`.
[30, 40, 50]
[10, 20, 30, 40, 50]
[20, 30, 40]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
## Out-of-bounds indexing
@ -157,6 +169,9 @@ behavior intentionally imitates Python.)
10
50
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
<pre class="pre-highlight-in-pair">
@ -173,6 +188,9 @@ behavior intentionally imitates Python.)
[10, 20]
[10, 20, 30, 40, 50]
[]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
## Auto-create results in maps
@ -197,6 +215,9 @@ as-yet-assigned local variable or out-of-stream variable results in
"square": 8.2430,
"circle": 8.3350
}
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
*This also means that auto-create results in maps, not arrays, even if keys are integers.*
@ -224,6 +245,9 @@ If you want to auto-extend an [array](reference-main-arrays.md), initialize it e
"4": 7.4670
}
}
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
## Auto-extend and null-gaps
@ -262,6 +286,9 @@ are called **null-gaps**.
<pre class="pre-non-highlight-in-pair">
["a", "b"]
["a", null, null, null, "e"]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
## Unset as shift
@ -281,6 +308,9 @@ Unsetting an array index results in shifting all higher-index elements down by o
<pre class="pre-non-highlight-in-pair">
["a", "b", "c", "d", "e"]
["a", "c", "d", "e"]
Memory profile started.
Memory profile finished.
go tool pprof -http=:8080 foo-stream
</pre>
More generally, you can get shift and pop operations by unsetting indices 1 and -1: