Function textTransferCase

textTransferCase(str, type): string

改变字符串大小写

Parameters

str: string
字符串
type:
    | 1
    | 2
    | 3
    | "upper"
    | "lower"
    | "first"
目标类型

Returns string

Example

textTransferCase('red', 'upper'|1); /// 'RED'
textTransferCase('red', 'lower'|2); /// 'red'
textTransferCase('red', 'first'|3); /// 'Red'