36 lines
680 B
Go
36 lines
680 B
Go
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package util
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import "strings"
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type (
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// 可取长度类型
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LenAble interface{ string | []any | chan any }
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)
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// 计算切片元素总长度
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/*
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传入字符串切片, 返回其所有元素长度之和
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e.g. LenArray({`ele3`,`ele2`,`ele1`}) => 12
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*/
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func LenArray[T LenAble](a []T) int {
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var o int
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for i, r := 0, len(a); i < r; i++ {
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o += len(a[i])
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}
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return o
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}
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// 字符串快速拼接
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/*
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传入多个字符串参数, 返回拼接后的结果
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e.g: StrConcat("str1", "str2", "str3") => "str1str2str3"
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*/
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func StrConcat(a ...string) string {
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var b strings.Builder
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b.Grow(LenArray(a))
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for i, r := 0, len(a); i < r; i++ {
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b.WriteString(a[i])
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}
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return b.String()
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}
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