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扩展exstrings函数#9

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thinkeridea merged 3 commits intomasterfrom
exstrings
Oct 28, 2019
Merged

扩展exstrings函数#9
thinkeridea merged 3 commits intomasterfrom
exstrings

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@thinkeridea thinkeridea commented Oct 28, 2019

  • 优化 exstrings.Reverse 方法，使其代码更加易读，并进行多种反转字符串方法性能对比，其测试代码在exstrings/benchmark/reverse_test.go， 其中BenchmarkReverseUTF8DecodeRuneInString 是优化前版本， BenchmarkExstringsReverse 是优化有版本，性能提升约3%，其结果如下：
$ go test -benchmem -bench="Reverse"  
goos: darwin
goarch: amd64
pkg: github.com/thinkeridea/go-extend/exstrings/benchmark
BenchmarkReverseRunes-8                           703830              1700 ns/op             480 B/op          2 allocs/op
BenchmarkReverseRange-8                          1400299               861 ns/op             192 B/op          1 allocs/op
BenchmarkReverseUTF8DecodeRuneInString-8         1482175               717 ns/op             192 B/op          1 allocs/op
BenchmarkExstringsReverse-8                      1698225               694 ns/op             192 B/op          1 allocs/op
PASS
ok      github.com/thinkeridea/go-extend/exstrings/benchmark    7.995s
  • 创建一个 exstrings.Bytes 方法，用来替换 []byte(s)，相比 []byte(s) 转换类型提升 14%，这仅仅是一个趣味函数，性能测试代码exstrings/benchmark/convert_test.go 结果如下：
$ go test -benchmem -bench="StringToBytes"  
goos: darwin
goarch: amd64
pkg: github.com/thinkeridea/go-extend/exstrings/benchmark
BenchmarkStandardLibraryStringToBytes-8         19118637                64.0 ns/op           192 B/op          1 allocs/op
BenchmarkExstringsStringToBytes-8               22079703                55.1 ns/op           192 B/op          1 allocs/op
PASS
ok      github.com/thinkeridea/go-extend/exstrings/benchmark    4.426s
  • 添加 exutf8.RuneSub 别名 exbytes.Sub
  • 添加 exutf8.RuneSubString 别名 exstrings.SubString

@thinkeridea thinkeridea added enhancement New feature or request optimize Promote or improve code functionality and performance labels Oct 28, 2019
@thinkeridea thinkeridea merged commit 42512d1 into master Oct 28, 2019
@thinkeridea thinkeridea deleted the exstrings branch October 28, 2019 13:37
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enhancement New feature or request optimize Promote or improve code functionality and performance

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