2014年12月11日 D5

[nunnly]

写一个模块转换器，可以把传入的_ASCII_数据转换成_十六进制_的数据，也可以传入_十六进制_的数据转换成ASCII

function Converter(){
    this.toAscii = function (hex) {

    };

    this.toHex = function(ascii){

    };
}
var abc = new Converter()
abc.toHex("Look mom, no hands")
//=> "4c6f6f6b206d6f6d2c206e6f2068616e6473"

abc.toAscii("4c6f6f6b206d6f6d2c206e6f2068616e6473")
//=> "Look mom, no hands"

[xinglie]

function Converter(){
    this.toAscii = function (hex) {
      var a=hex.match(/[0-9a-f]{2}/g);
      for(var i=0;i<a.length;i++){
       a[i]=parseInt(a[i],16) 
      }
      return String.fromCharCode.apply(String,a);
    };

    this.toHex = function(ascii){
      var a=[];
      for(var i=0;i<ascii.length;i++){
          a.push(ascii.charCodeAt(i).toString(16))
      }
      return a.join('');
    };
}

[qingo]

function Converter() {
  this.toAscii= function (hex) {
    var i;
    return [].map.call(hex, function (v, k) {
      if (k % 2 === 0) {
        i = v;
      } else {
        v = '0x' + i + v;
        return String.fromCharCode(v);
      }
    }).join('');
  },
  this.toHex= function (ascii) {
    return [].map.call(ascii, function (v, k) {
      return v.charCodeAt(0).toString(16);
    }).join('');
  }
};

[zlbchapman2008]

function Converter(){ this.toAscii = function (asContents) { var len1 = asContents.length; var temp = ""; for (var i = 0; i < len1; i++) { var varasc = asContents.charCodeAt(i);
temp += parseInt(varasc,10).toString(16);
}
return temp; };

this.toHex = function(asContents){ var temp = ""; var a=asContents.match(/[0-9a-f]{2}/g); for(var i=0;i<a.length;i++){ temp +=String.fromCharCode(parseInt(a[i],16)) } return temp; }; }

[weisuiyu]

function Converter(){
    this.toAscii = function (hex) {
        var s="";
        for(var i = 0; i < hex.length; i+=2){
            s += String.fromCharCode(parseInt(hex.substr(i,2),16));
        }
        return s;
    };

    this.toHex = function(ascii){
        var s="";
        for(var i = 0; i < ascii.length; i++){
            s += ascii.charCodeAt(i).toString(16);
        }
        return s;
    };
}

var abc = new Converter();
var hex = abc.toHex("Look mom, no hands");
console.log(hex)
var str = abc.toAscii(hex)
console.log(str)

[XadillaX]

function Converter() {
    this.toAscii = function(hex) {
        return hex.split("").reduce(function(res, ch) {
            return (res[1].length < 1 ? (res[1] += ch) : (res[0] += String.fromCharCode(parseInt(res[1] + ch, 16)), res[1] = "")), res;
        }, ["", ""])[0];
    };
    this.toHex = function(ascii) {
        return ascii.split("").reduce(function(res, ch) {
            return res + (ch.charCodeAt(0).toString(16));
        }, "");
    };
}

以及了。

function Converter(){this.toAscii=function(a){return a.split("").reduce(function(a,b){return a[1].length<1?a[1]+=b:(a[0]+=String.fromCharCode(parseInt(a[1]+b,16)),a[1]=""),a},["",""])[0]},this.toHex=function(a){return a.split("").reduce(function(a,b){return a+b.charCodeAt(0).toString(16)},"")}}

[backsapce]

递归版本

function Converter(){
  this.toHex = function (string) {
    if(string.length <= 1){
      return string.charCodeAt(0).toString(16);
    }
    var mid = string.length / 2;
    return this.toHex(string.slice(0,mid)) +'' + this.toHex(string.slice(mid,string.length));
  };

  this.toAscii = function(string){
    if(string.length <= 2){
      return String.fromCharCode(parseInt(string,16));
    }
    var mid = string.length / 2;
    mid = (mid % 2 == 0 ? mid : mid+1);
    return this.toAscii(string.slice(0,mid)) +'' + this.toAscii(string.slice(mid,string.length));
  };
}

[weisuiyu]

支持中文

function Converter(){
    this.toAscii = function (hex) {
        var s="";
        for(var i = 0; i < hex.length; i+=4){
            s += String.fromCharCode(parseInt(hex.substr(i,4),16));
        }
        return s;
    };

    this.toHex = function(ascii){
        var s="",tmp;
        for(var i = 0; i < ascii.length; i++){
            tmp = ascii.charCodeAt(i).toString(16);
            s += tmp.length==2?"00"+tmp:tmp; 
        }
        return s;
    };
}

var abc = new Converter();
var hex = abc.toHex("我喜欢你，no code say bird!");
console.log(hex)
var str = abc.toAscii(hex)
console.log(str)