js 字符转换 · 字符串与16进制互转

let arr1=[1,2,3,4,5];
    let arr2=arr1;
    let arr3=arr1.map(function(item){
    	return item;
    })
    console.log(arr1===arr2);
    console.log(arr1===arr3);

funStrToHex(str){ //字符串转16进制
				var val = "";
				for(var i = 0; i < str.length; i++){
					if (val == "") 
						val = str.charCodeAt(i).toString(16);
					else 
						val += "," + str.charCodeAt(i).toString(16);
				}
				return val;
			},
			funHexToStr(str){ //16进制串转字符
				var val="";
				var arr = str.split(",");
				for(var i = 0; i < arr.length; i++){
				　　val += String.fromCharCode(parseInt(arr[i],16));
				}
				return val;
			},