使用javascript函数将西里尔文音译为拉丁文

Question

我做了这个功能：

 function transliterate(word){

    var answer = "";

    A = new Array();
    A["Ё"]="YO";A["Й"]="I";A["Ц"]="TS";A["У"]="U";A["К"]="K";A["Е"]="E";A["Н"]="N";A["Г"]="G";A["Ш"]="SH";A["Щ"]="SCH";A["З"]="Z";A["Х"]="H";A["Ъ"]="'";
    A["ё"]="yo";A["й"]="i";A["ц"]="ts";A["у"]="u";A["к"]="k";A["е"]="e";A["н"]="n";A["г"]="g";A["ш"]="sh";A["щ"]="sch";A["з"]="z";A["х"]="h";A["ъ"]="'";
    A["Ф"]="F";A["Ы"]="I";A["В"]="V";A["А"]="A";A["П"]="P";A["Р"]="R";A["О"]="O";A["Л"]="L";A["Д"]="D";A["Ж"]="ZH";A["Э"]="E";
    A["ф"]="f";A["ы"]="i";A["в"]="v";A["а"]="a";A["п"]="p";A["р"]="r";A["о"]="o";A["л"]="l";A["д"]="d";A["ж"]="zh";A["э"]="e";
    A["Я"]="YA";A["Ч"]="CH";A["С"]="S";A["М"]="M";A["И"]="I";A["Т"]="T";A["Ь"]="'";A["Б"]="B";A["Ю"]="YU";
    A["я"]="ya";A["ч"]="ch";A["с"]="s";A["м"]="m";A["и"]="i";A["т"]="t";A["ь"]="'";A["б"]="b";A["ю"]="yu";

for (i in word){

    if (A[word[i]] === 'undefined'){
        answer += word[i];
        }
    else {
        answer += A[word[i]];
        }

return answer;
}
}

现在它应该将西里尔文本音译为拉丁文，让拉丁文简单地通过。但它只能设法音译第一个，如果是拉丁语，它会给出未定义的答案。谁能给我一个想法，我做错了什么？

原文由 kyng 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

几件事…

1. 使用 undefined 而不是 ‘undefined’
2. 不要把回报放在循环中
3. 使用 hasOwnProperty 过滤掉原型上的函数和属性
4. 使用 [] 而不是 new Array()
5. 使用 {} 而不是 []
6. 使用小写变量而不是大写变量。大写字母保留给构造函数

这是代码

function transliterate(word){
    var answer = ""
      , a = {};

   a["Ё"]="YO";a["Й"]="I";a["Ц"]="TS";a["У"]="U";a["К"]="K";a["Е"]="E";a["Н"]="N";a["Г"]="G";a["Ш"]="SH";a["Щ"]="SCH";a["З"]="Z";a["Х"]="H";a["Ъ"]="'";
   a["ё"]="yo";a["й"]="i";a["ц"]="ts";a["у"]="u";a["к"]="k";a["е"]="e";a["н"]="n";a["г"]="g";a["ш"]="sh";a["щ"]="sch";a["з"]="z";a["х"]="h";a["ъ"]="'";
   a["Ф"]="F";a["Ы"]="I";a["В"]="V";a["А"]="А";a["П"]="P";a["Р"]="R";a["О"]="O";a["Л"]="L";a["Д"]="D";a["Ж"]="ZH";a["Э"]="E";
   a["ф"]="f";a["ы"]="i";a["в"]="v";a["а"]="a";a["п"]="p";a["р"]="r";a["о"]="o";a["л"]="l";a["д"]="d";a["ж"]="zh";a["э"]="e";
   a["Я"]="Ya";a["Ч"]="CH";a["С"]="S";a["М"]="M";a["И"]="I";a["Т"]="T";a["Ь"]="'";a["Б"]="B";a["Ю"]="YU";
   a["я"]="ya";a["ч"]="ch";a["с"]="s";a["м"]="m";a["и"]="i";a["т"]="t";a["ь"]="'";a["б"]="b";a["ю"]="yu";

   for (i in word){
     if (word.hasOwnProperty(i)) {
       if (a[word[i]] === undefined){
         answer += word[i];
       } else {
         answer += a[word[i]];
       }
     }
   }
   return answer;
}

更实用的是这样的……

 var a = {"Ё":"YO","Й":"I","Ц":"TS","У":"U","К":"K","Е":"E","Н":"N","Г":"G","Ш":"SH","Щ":"SCH","З":"Z","Х":"H","Ъ":"'","ё":"yo","й":"i","ц":"ts","у":"u","к":"k","е":"e","н":"n","г":"g","ш":"sh","щ":"sch","з":"z","х":"h","ъ":"'","Ф":"F","Ы":"I","В":"V","А":"А","П":"P","Р":"R","О":"O","Л":"L","Д":"D","Ж":"ZH","Э":"E","ф":"f","ы":"i","в":"v","а":"a","п":"p","р":"r","о":"o","л":"l","д":"d","ж":"zh","э":"e","Я":"Ya","Ч":"CH","С":"S","М":"M","И":"I","Т":"T","Ь":"'","Б":"B","Ю":"YU","я":"ya","ч":"ch","с":"s","м":"m","и":"i","т":"t","ь":"'","б":"b","ю":"yu"};

function transliterate(word){
  return word.split('').map(function (char) {
    return a[char] || char;
  }).join("");
}

原文由 Split Your Infinity 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 2

在我的项目中，我使用这种音译方法：

 var transliterate = function(text) {

    text = text
        .replace(/\u0401/g, 'YO')
        .replace(/\u0419/g, 'I')
        .replace(/\u0426/g, 'TS')
        .replace(/\u0423/g, 'U')
        .replace(/\u041A/g, 'K')
        .replace(/\u0415/g, 'E')
        .replace(/\u041D/g, 'N')
        .replace(/\u0413/g, 'G')
        .replace(/\u0428/g, 'SH')
        .replace(/\u0429/g, 'SCH')
        .replace(/\u0417/g, 'Z')
        .replace(/\u0425/g, 'H')
        .replace(/\u042A/g, '')
        .replace(/\u0451/g, 'yo')
        .replace(/\u0439/g, 'i')
        .replace(/\u0446/g, 'ts')
        .replace(/\u0443/g, 'u')
        .replace(/\u043A/g, 'k')
        .replace(/\u0435/g, 'e')
        .replace(/\u043D/g, 'n')
        .replace(/\u0433/g, 'g')
        .replace(/\u0448/g, 'sh')
        .replace(/\u0449/g, 'sch')
        .replace(/\u0437/g, 'z')
        .replace(/\u0445/g, 'h')
        .replace(/\u044A/g, "'")
        .replace(/\u0424/g, 'F')
        .replace(/\u042B/g, 'I')
        .replace(/\u0412/g, 'V')
        .replace(/\u0410/g, 'a')
        .replace(/\u041F/g, 'P')
        .replace(/\u0420/g, 'R')
        .replace(/\u041E/g, 'O')
        .replace(/\u041B/g, 'L')
        .replace(/\u0414/g, 'D')
        .replace(/\u0416/g, 'ZH')
        .replace(/\u042D/g, 'E')
        .replace(/\u0444/g, 'f')
        .replace(/\u044B/g, 'i')
        .replace(/\u0432/g, 'v')
        .replace(/\u0430/g, 'a')
        .replace(/\u043F/g, 'p')
        .replace(/\u0440/g, 'r')
        .replace(/\u043E/g, 'o')
        .replace(/\u043B/g, 'l')
        .replace(/\u0434/g, 'd')
        .replace(/\u0436/g, 'zh')
        .replace(/\u044D/g, 'e')
        .replace(/\u042F/g, 'Ya')
        .replace(/\u0427/g, 'CH')
        .replace(/\u0421/g, 'S')
        .replace(/\u041C/g, 'M')
        .replace(/\u0418/g, 'I')
        .replace(/\u0422/g, 'T')
        .replace(/\u042C/g, "'")
        .replace(/\u0411/g, 'B')
        .replace(/\u042E/g, 'YU')
        .replace(/\u044F/g, 'ya')
        .replace(/\u0447/g, 'ch')
        .replace(/\u0441/g, 's')
        .replace(/\u043C/g, 'm')
        .replace(/\u0438/g, 'i')
        .replace(/\u0442/g, 't')
        .replace(/\u044C/g, "'")
        .replace(/\u0431/g, 'b')
        .replace(/\u044E/g, 'yu');

    return text;
};

运行此示例以音译：

 transliterate('абвгдеёжзийклмнопрстуфхцчшщъыьэюяАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ');

我用它们的 unicode 类似物替换了所有俄语字母（每个字母以 \u 开头）以解决 Javascript 文件中的编码问题。

为了检查执行速度，我选择了这个问题的最佳答案，并将其与我的示例进行了比较。我的方法似乎有好几次更快（在 Firebug 中为 0.16 毫秒 :-)。

原文由 Ali Mamedov 发布，翻译遵循 CC BY-SA 3.0 许可协议