Convert bytes to string Javascript

hex2string.js

function str2arr(str){
var array_=new Array();
for(var i = 0; i < str.length; ++i){
array_[i]=str.charCodeAt(i);};
return array_;
}

function hex2arr(str){
	var b_=new Uint8Array();
	eval("b_=["+str+"]");
	return b_;
}

function bin2string(array){
	var result = "";
	for(var i = 0; i < array.length; ++i){
		result+= (String.fromCharCode(array[i]));
	}
	return result;
}

function hex2string(str){
	return eval('String.fromCharCode('+str+')');
}

var hexstr="0x23,0x66,0x78,0x85,0xff,0x00"
bin2string(hex2arr(hexstr));
hex2string(hexstr);