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TypeScript 函數-重載

fun ring ava ber script string pes number alert

function attr(name:string):string;
function attr(age:number):string;
function attr(nameorage:any):any{
    if(nameorage &&typeof nameorage ==="string"){//代表當前是名字
        alert("ming")
    }else{
        alert("age");
    }
}
attr("hell");
attr(10);

  

TypeScript 函數-重載