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As the examples are about performance, perform the mininal work required

Thomas Mangin 2018-12-31 17:41:42 +00:00
parent 3941028dc4
commit bc97e754b5
1 changed files with 4 additions and 1 deletions
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5
SliceTricks.md

@ -182,7 +182,10 @@ for i := 1; i < len(in); i++ {
continue
}
j++
in[i], in[j] = in[j], in[i]
// preserve the original data
// in[i], in[j] = in[j], in[i]
// only set what is required
in[j] = in[i]
}
result := in[:j+1]
fmt.Println(result) // [1 2 3 4]