JS 数组转化为字符串？

Question

现有数组：["array1","array2","array3"]，如何转化为:"array1;array2;array3"字符串格式？

Answer 1

["array1","array2","array3"].join(';')

Answer 2

arr.join(';')

Answer 3

["array1","array2","array3"].join(";")

Answer 4

var arr = ["array1","array2","array3"];
var strr = "";
for(let i=0;i<arr.length;i++){

if(i!=arr.length-1){
    strr+=arr[i]+";";
}else{
    strr+=arr[i];
}

}
console.log(strr);

Answer 5

用implode啊,implode(";",$arr);