谢谢大家 我使用这个版本并说明原因(因为我在开始时错过了这些解释，所以我试图帮助下一个读者，如果他和我一样无聊…)

备注:我想要一个高效的解决方案，所以:

只有一次regexp编译(如果需要) 每个字符串只扫描一个字符串 查找已翻译字符的有效方法 等等……

我的版本是: (里面没有新的技术技巧，只有一些精选的+解释)

makeSortString = (function() {
    var translate_re = /[¹²³áàâãäåaaaÀÁÂÃÄÅAAAÆccç©CCÇÐÐèéê?ëeeeeeÈÊË?EEEEE€gGiìíîïìiiiÌÍÎÏ?ÌIIIlLnnñNNÑòóôõöoooøÒÓÔÕÖOOOØŒr®Ršs?ߊS?ùúûüuuuuÙÚÛÜUUUUýÿÝŸžzzŽZZ]/g;
    var translate = {
"¹":"1","²":"2","³":"3","á":"a","à":"a","â":"a","ã":"a","ä":"a","å":"a","a":"a","a":"a","a":"a","À":"a","Á":"a","Â":"a","Ã":"a","Ä":"a","Å":"a","A":"a","A":"a",
"A":"a","Æ":"a","c":"c","c":"c","ç":"c","©":"c","C":"c","C":"c","Ç":"c","Ð":"d","Ð":"d","è":"e","é":"e","ê":"e","?":"e","ë":"e","e":"e","e":"e","e":"e","e":"e",
"e":"e","È":"e","Ê":"e","Ë":"e","?":"e","E":"e","E":"e","E":"e","E":"e","E":"e","€":"e","g":"g","G":"g","i":"i","ì":"i","í":"i","î":"i","ï":"i","ì":"i","i":"i",
"i":"i","i":"i","Ì":"i","Í":"i","Î":"i","Ï":"i","?":"i","Ì":"i","I":"i","I":"i","I":"i","l":"l","L":"l","n":"n","n":"n","ñ":"n","N":"n","N":"n","Ñ":"n","ò":"o",
"ó":"o","ô":"o","õ":"o","ö":"o","o":"o","o":"o","o":"o","ø":"o","Ò":"o","Ó":"o","Ô":"o","Õ":"o","Ö":"o","O":"o","O":"o","O":"o","Ø":"o","Œ":"o","r":"r","®":"r",
"R":"r","š":"s","s":"s","?":"s","ß":"s","Š":"s","S":"s","?":"s","ù":"u","ú":"u","û":"u","ü":"u","u":"u","u":"u","u":"u","u":"u","Ù":"u","Ú":"u","Û":"u","Ü":"u",
"U":"u","U":"u","U":"u","U":"u","ý":"y","ÿ":"y","Ý":"y","Ÿ":"y","ž":"z","z":"z","z":"z","Ž":"z","Z":"z","Z":"z"
    };
    return function(s) {
        return(s.replace(translate_re, function(match){return translate[match];}) );
    }
})();

我是这样用的:

var without_accents = makeSortString("wïthêüÄTrèsBïgüeAk100t");
// I let you guess the result,
// no I was kidding you : I give you the result : witheuatresbigueak100t

评论:

Tthe instruction inside it is done once (after, makeSortString != undefined) function(){...} is stored once in makeSortString, so the "big" translate_re and translate objects are stored once When you call makeSortString('something') it call directly the inside function which calls only s.replace(...) : it is efficient s.replace uses regexp (the special syntax of var translate_re= .... is in fact equivalent to var translate_re = new RegExp("[¹....Z]","g"); but the compilation of the regexp is done once for all, and the scan of the s String is done one for a call of the function (not for every character as it would be in a loop) For each character found s.replace calls function(match) where parameter match contains the character found, and it call the corresponding translated character (translate[match]) Translate[match] is probably efficient too as the javascript translate object is probably implemented by javascript with a hashtab or something equivalent and allow the program to find the translated character almost directly and not for instance through a loop on a array of all characters to find the right one (which would be awfully unefficient).

我的看法是，去掉所有口音和特殊字符。我混合了Lewis Diamond优雅的重音删除方法和社区wiki的快速字符替换余下的字符。结果是一个Ascii字符串。

function convertToAscii(string) {
    const unicodeToAsciiMap = {'Ⱥ':'A','Æ':'AE','Ꜻ':'AV','Ɓ':'B','Ƀ':'B','Ƃ':'B','Ƈ':'C','Ȼ':'C','Ɗ':'D','Dz':'D','Dž':'D','Đ':'D','Ƌ':'D','DŽ':'DZ','Ɇ':'E','Ꝫ':'ET','Ƒ':'F','Ɠ':'G','Ǥ':'G','Ⱨ':'H','Ħ':'H','Ɨ':'I','Ꝺ':'D','Ꝼ':'F','Ᵹ':'G','Ꞃ':'R','Ꞅ':'S','Ꞇ':'T','Ꝭ':'IS','Ɉ':'J','Ⱪ':'K','Ꝃ':'K','Ƙ':'K','Ꝁ':'K','Ꝅ':'K','Ƚ':'L','Ⱡ':'L','Ꝉ':'L','Ŀ':'L','Ɫ':'L','Lj':'L','Ł':'L','Ɱ':'M','Ɲ':'N','Ƞ':'N','Nj':'N','Ꝋ':'O','Ꝍ':'O','Ɵ':'O','Ø':'O','Ƣ':'OI','Ɛ':'E','Ɔ':'O','Ȣ':'OU','Ꝓ':'P','Ƥ':'P','Ꝕ':'P','Ᵽ':'P','Ꝑ':'P','Ꝙ':'Q','Ꝗ':'Q','Ɍ':'R','Ɽ':'R','Ꜿ':'C','Ǝ':'E','Ⱦ':'T','Ƭ':'T','Ʈ':'T','Ŧ':'T','Ɐ':'A','Ꞁ':'L','Ɯ':'M','Ʌ':'V','Ꝟ':'V','Ʋ':'V','Ⱳ':'W','Ƴ':'Y','Ỿ':'Y','Ɏ':'Y','Ⱬ':'Z','Ȥ':'Z','Ƶ':'Z','Œ':'OE','ᴀ':'A','ᴁ':'AE','ʙ':'B','ᴃ':'B','ᴄ':'C','ᴅ':'D','ᴇ':'E','ꜰ':'F','ɢ':'G','ʛ':'G','ʜ':'H','ɪ':'I','ʁ':'R','ᴊ':'J','ᴋ':'K','ʟ':'L','ᴌ':'L','ᴍ':'M','ɴ':'N','ᴏ':'O','ɶ':'OE','ᴐ':'O','ᴕ':'OU','ᴘ':'P','ʀ':'R','ᴎ':'N','ᴙ':'R','ꜱ':'S','ᴛ':'T','ⱻ':'E','ᴚ':'R','ᴜ':'U','ᴠ':'V','ᴡ':'W','ʏ':'Y','ᴢ':'Z','ᶏ':'a','ẚ':'a','ⱥ':'a','æ':'ae','ꜻ':'av','ɓ':'b','ᵬ':'b','ᶀ':'b','ƀ':'b','ƃ':'b','ɵ':'o','ɕ':'c','ƈ':'c','ȼ':'c','ȡ':'d','ɗ':'d','ᶑ':'d','ᵭ':'d','ᶁ':'d','đ':'d','ɖ':'d','ƌ':'d','ı':'i','ȷ':'j','ɟ':'j','ʄ':'j','dž':'dz','ⱸ':'e','ᶒ':'e','ɇ':'e','ꝫ':'et','ƒ':'f','ᵮ':'f','ᶂ':'f','ɠ':'g','ᶃ':'g','ǥ':'g','ⱨ':'h','ɦ':'h','ħ':'h','ƕ':'hv','ᶖ':'i','ɨ':'i','ꝺ':'d','ꝼ':'f','ᵹ':'g','ꞃ':'r','ꞅ':'s','ꞇ':'t','ꝭ':'is','ʝ':'j','ɉ':'j','ⱪ':'k','ꝃ':'k','ƙ':'k','ᶄ':'k','ꝁ':'k','ꝅ':'k','ƚ':'l','ɬ':'l','ȴ':'l','ⱡ':'l','ꝉ':'l','ŀ':'l','ɫ':'l','ᶅ':'l','ɭ':'l','ł':'l','ſ':'s','ẜ':'s','ẝ':'s','ɱ':'m','ᵯ':'m','ᶆ':'m','ȵ':'n','ɲ':'n','ƞ':'n','ᵰ':'n','ᶇ':'n','ɳ':'n','ꝋ':'o','ꝍ':'o','ⱺ':'o','ø':'o','ƣ':'oi','ɛ':'e','ᶓ':'e','ɔ':'o','ᶗ':'o','ȣ':'ou','ꝓ':'p','ƥ':'p','ᵱ':'p','ᶈ':'p','ꝕ':'p','ᵽ':'p','ꝑ':'p','ꝙ':'q','ʠ':'q','ɋ':'q','ꝗ':'q','ɾ':'r','ᵳ':'r','ɼ':'r','ᵲ':'r','ᶉ':'r','ɍ':'r','ɽ':'r','ↄ':'c','ꜿ':'c','ɘ':'e','ɿ':'r','ʂ':'s','ᵴ':'s','ᶊ':'s','ȿ':'s','ɡ':'g','ᴑ':'o','ᴓ':'o','ᴝ':'u','ȶ':'t','ⱦ':'t','ƭ':'t','ᵵ':'t','ƫ':'t','ʈ':'t','ŧ':'t','ᵺ':'th','ɐ':'a','ᴂ':'ae','ǝ':'e','ᵷ':'g','ɥ':'h','ʮ':'h','ʯ':'h','ᴉ':'i','ʞ':'k','ꞁ':'l','ɯ':'m','ɰ':'m','ᴔ':'oe','ɹ':'r','ɻ':'r','ɺ':'r','ⱹ':'r','ʇ':'t','ʌ':'v','ʍ':'w','ʎ':'y','ᶙ':'u','ᵫ':'ue','ꝸ':'um','ⱴ':'v','ꝟ':'v','ʋ':'v','ᶌ':'v','ⱱ':'v','ⱳ':'w','ᶍ':'x','ƴ':'y','ỿ':'y','ɏ':'y','ʑ':'z','ⱬ':'z','ȥ':'z','ᵶ':'z','ᶎ':'z','ʐ':'z','ƶ':'z','ɀ':'z','œ':'oe','ₓ':'x'};
    const stringWithoutAccents = string.normalize("NFD").replace(/[\u0300-\u036f]/g, '');
    return stringWithoutAccents.replace(/[^\u0000-\u007E]/g, character => unicodeToAsciiMap[character] || '');
}

新RegExp的格式为

RegExp(something, 'modifiers');

所以你会想

accentsTidy = function(s){
                        var r=s.toLowerCase();
                        r = r.replace(new RegExp("\\s", 'g'),"");
                        r = r.replace(new RegExp("[àáâãäå]", 'g'),"a");
                        r = r.replace(new RegExp("æ", 'g'),"ae");
                        r = r.replace(new RegExp("ç", 'g'),"c");
                        r = r.replace(new RegExp("[èéêë]", 'g'),"e");
                        r = r.replace(new RegExp("[ìíîï]", 'g'),"i");
                        r = r.replace(new RegExp("ñ", 'g'),"n");                            
                        r = r.replace(new RegExp("[òóôõö]", 'g'),"o");
                        r = r.replace(new RegExp("œ", 'g'),"oe");
                        r = r.replace(new RegExp("[ùúûü]", 'g'),"u");
                        r = r.replace(new RegExp("[ýÿ]", 'g'),"y");
                        r = r.replace(new RegExp("\\W", 'g'),"");
                        return r;
                };

我稍微修改了khel版本，原因之一是:每次regexp解析/替换将花费O(n)次操作，其中n是目标文本中的字符数。但是，regexp并不是我们所需要的。所以:

/* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ var defaultDiacriticsRemovalMap = [ {'base':'A', 'letters':'\u0041\u24B6\uFF21\u00C0\u00C1\u00C2\u1EA6\u1EA4\u1EAA\u1EA8\u00C3\u0100\u0102\u1EB0\u1EAE\u1EB4\u1EB2\u0226\u01E0\u00C4\u01DE\u1EA2\u00C5\u01FA\u01CD\u0200\u0202\u1EA0\u1EAC\u1EB6\u1E00\u0104\u023A\u2C6F'}, {'base':'AA','letters':'\uA732'}, {'base':'AE','letters':'\u00C6\u01FC\u01E2'}, {'base':'AO','letters':'\uA734'}, {'base':'AU','letters':'\uA736'}, {'base':'AV','letters':'\uA738\uA73A'}, {'base':'AY','letters':'\uA73C'}, {'base':'B', 'letters':'\u0042\u24B7\uFF22\u1E02\u1E04\u1E06\u0243\u0182\u0181'}, {'base':'C', 'letters':'\u0043\u24B8\uFF23\u0106\u0108\u010A\u010C\u00C7\u1E08\u0187\u023B\uA73E'}, {'base':'D', 'letters':'\u0044\u24B9\uFF24\u1E0A\u010E\u1E0C\u1E10\u1E12\u1E0E\u0110\u018B\u018A\u0189\uA779\u00D0'}, {'base':'DZ','letters':'\u01F1\u01C4'}, {'base':'Dz','letters':'\u01F2\u01C5'}, {'base':'E', 'letters':'\u0045\u24BA\uFF25\u00C8\u00C9\u00CA\u1EC0\u1EBE\u1EC4\u1EC2\u1EBC\u0112\u1E14\u1E16\u0114\u0116\u00CB\u1EBA\u011A\u0204\u0206\u1EB8\u1EC6\u0228\u1E1C\u0118\u1E18\u1E1A\u0190\u018E'}, {'base':'F', 'letters':'\u0046\u24BB\uFF26\u1E1E\u0191\uA77B'}, {'base':'G', 'letters':'\u0047\u24BC\uFF27\u01F4\u011C\u1E20\u011E\u0120\u01E6\u0122\u01E4\u0193\uA7A0\uA77D\uA77E'}, {'base':'H', 'letters':'\u0048\u24BD\uFF28\u0124\u1E22\u1E26\u021E\u1E24\u1E28\u1E2A\u0126\u2C67\u2C75\uA78D'}, {'base':'I', 'letters':'\u0049\u24BE\uFF29\u00CC\u00CD\u00CE\u0128\u012A\u012C\u0130\u00CF\u1E2E\u1EC8\u01CF\u0208\u020A\u1ECA\u012E\u1E2C\u0197'}, {'base':'J', 'letters':'\u004A\u24BF\uFF2A\u0134\u0248'}, {'base':'K', 'letters':'\u004B\u24C0\uFF2B\u1E30\u01E8\u1E32\u0136\u1E34\u0198\u2C69\uA740\uA742\uA744\uA7A2'}, {'base':'L', 'letters':'\u004C\u24C1\uFF2C\u013F\u0139\u013D\u1E36\u1E38\u013B\u1E3C\u1E3A\u0141\u023D\u2C62\u2C60\uA748\uA746\uA780'}, {'base':'LJ','letters':'\u01C7'}, {'base':'Lj','letters':'\u01C8'}, {'base':'M', 'letters':'\u004D\u24C2\uFF2D\u1E3E\u1E40\u1E42\u2C6E\u019C'}, {'base':'N', 'letters':'\u004E\u24C3\uFF2E\u01F8\u0143\u00D1\u1E44\u0147\u1E46\u0145\u1E4A\u1E48\u0220\u019D\uA790\uA7A4'}, {'base':'NJ','letters':'\u01CA'}, {'base':'Nj','letters':'\u01CB'}, {'base':'O', 'letters':'\u004F\u24C4\uFF2F\u00D2\u00D3\u00D4\u1ED2\u1ED0\u1ED6\u1ED4\u00D5\u1E4C\u022C\u1E4E\u014C\u1E50\u1E52\u014E\u022E\u0230\u00D6\u022A\u1ECE\u0150\u01D1\u020C\u020E\u01A0\u1EDC\u1EDA\u1EE0\u1EDE\u1EE2\u1ECC\u1ED8\u01EA\u01EC\u00D8\u01FE\u0186\u019F\uA74A\uA74C'}, {'base':'OI','letters':'\u01A2'}, {'base':'OO','letters':'\uA74E'}, {'base':'OU','letters':'\u0222'}, {'base':'OE','letters':'\u008C\u0152'}, {'base':'oe','letters':'\u009C\u0153'}, {'base':'P', 'letters':'\u0050\u24C5\uFF30\u1E54\u1E56\u01A4\u2C63\uA750\uA752\uA754'}, {'base':'Q', 'letters':'\u0051\u24C6\uFF31\uA756\uA758\u024A'}, {'base':'R', 'letters':'\u0052\u24C7\uFF32\u0154\u1E58\u0158\u0210\u0212\u1E5A\u1E5C\u0156\u1E5E\u024C\u2C64\uA75A\uA7A6\uA782'}, {'base':'S', 'letters':'\u0053\u24C8\uFF33\u1E9E\u015A\u1E64\u015C\u1E60\u0160\u1E66\u1E62\u1E68\u0218\u015E\u2C7E\uA7A8\uA784'}, {'base':'T', 'letters':'\u0054\u24C9\uFF34\u1E6A\u0164\u1E6C\u021A\u0162\u1E70\u1E6E\u0166\u01AC\u01AE\u023E\uA786'}, {'base':'TZ','letters':'\uA728'}, {'base':'U', 'letters':'\u0055\u24CA\uFF35\u00D9\u00DA\u00DB\u0168\u1E78\u016A\u1E7A\u016C\u00DC\u01DB\u01D7\u01D5\u01D9\u1EE6\u016E\u0170\u01D3\u0214\u0216\u01AF\u1EEA\u1EE8\u1EEE\u1EEC\u1EF0\u1EE4\u1E72\u0172\u1E76\u1E74\u0244'}, {'base':'V', 'letters':'\u0056\u24CB\uFF36\u1E7C\u1E7E\u01B2\uA75E\u0245'}, {'base':'VY','letters':'\uA760'}, {'base':'W', 'letters':'\u0057\u24CC\uFF37\u1E80\u1E82\u0174\u1E86\u1E84\u1E88\u2C72'}, {'base':'X', 'letters':'\u0058\u24CD\uFF38\u1E8A\u1E8C'}, {'base':'Y', 'letters':'\u0059\u24CE\uFF39\u1EF2\u00DD\u0176\u1EF8\u0232\u1E8E\u0178\u1EF6\u1EF4\u01B3\u024E\u1EFE'}, {'base':'Z', 'letters':'\u005A\u24CF\uFF3A\u0179\u1E90\u017B\u017D\u1E92\u1E94\u01B5\u0224\u2C7F\u2C6B\uA762'}, {'base':'a', 'letters':'\u0061\u24D0\uFF41\u1E9A\u00E0\u00E1\u00E2\u1EA7\u1EA5\u1EAB\u1EA9\u00E3\u0101\u0103\u1EB1\u1EAF\u1EB5\u1EB3\u0227\u01E1\u00E4\u01DF\u1EA3\u00E5\u01FB\u01CE\u0201\u0203\u1EA1\u1EAD\u1EB7\u1E01\u0105\u2C65\u0250'}, {'base':'aa','letters':'\uA733'}, {'base':'ae','letters':'\u00E6\u01FD\u01E3'}, {'base':'ao','letters':'\uA735'}, {'base':'au','letters':'\uA737'}, {'base':'av','letters':'\uA739\uA73B'}, {'base':'ay','letters':'\uA73D'}, {'base':'b', 'letters':'\u0062\u24D1\uFF42\u1E03\u1E05\u1E07\u0180\u0183\u0253'}, {'base':'c', 'letters':'\u0063\u24D2\uFF43\u0107\u0109\u010B\u010D\u00E7\u1E09\u0188\u023C\uA73F\u2184'}, {'base':'d', 'letters':'\u0064\u24D3\uFF44\u1E0B\u010F\u1E0D\u1E11\u1E13\u1E0F\u0111\u018C\u0256\u0257\uA77A'}, {'base':'dz','letters':'\u01F3\u01C6'}, {'base':'e', 'letters':'\u0065\u24D4\uFF45\u00E8\u00E9\u00EA\u1EC1\u1EBF\u1EC5\u1EC3\u1EBD\u0113\u1E15\u1E17\u0115\u0117\u00EB\u1EBB\u011B\u0205\u0207\u1EB9\u1EC7\u0229\u1E1D\u0119\u1E19\u1E1B\u0247\u025B\u01DD'}, {'base':'f', 'letters':'\u0066\u24D5\uFF46\u1E1F\u0192\uA77C'}, {'base':'g', 'letters':'\u0067\u24D6\uFF47\u01F5\u011D\u1E21\u011F\u0121\u01E7\u0123\u01E5\u0260\uA7A1\u1D79\uA77F'}, {'base':'h', 'letters':'\u0068\u24D7\uFF48\u0125\u1E23\u1E27\u021F\u1E25\u1E29\u1E2B\u1E96\u0127\u2C68\u2C76\u0265'}, {'base':'hv','letters':'\u0195'}, {'base':'i', 'letters':'\u0069\u24D8\uFF49\u00EC\u00ED\u00EE\u0129\u012B\u012D\u00EF\u1E2F\u1EC9\u01D0\u0209\u020B\u1ECB\u012F\u1E2D\u0268\u0131'}, {'base':'j', 'letters':'\u006A\u24D9\uFF4A\u0135\u01F0\u0249'}, {'base':'k', 'letters':'\u006B\u24DA\uFF4B\u1E31\u01E9\u1E33\u0137\u1E35\u0199\u2C6A\uA741\uA743\uA745\uA7A3'}, {'base':'l', 'letters':'\u006C\u24DB\uFF4C\u0140\u013A\u013E\u1E37\u1E39\u013C\u1E3D\u1E3B\u017F\u0142\u019A\u026B\u2C61\uA749\uA781\uA747'}, {'base':'lj','letters':'\u01C9'}, {'base':'m', 'letters':'\u006D\u24DC\uFF4D\u1E3F\u1E41\u1E43\u0271\u026F'}, {'base':'n', 'letters':'\u006E\u24DD\uFF4E\u01F9\u0144\u00F1\u1E45\u0148\u1E47\u0146\u1E4B\u1E49\u019E\u0272\u0149\uA791\uA7A5'}, {'base':'nj','letters':'\u01CC'}, {'base':'o', 'letters':'\u006F\u24DE\uFF4F\u00F2\u00F3\u00F4\u1ED3\u1ED1\u1ED7\u1ED5\u00F5\u1E4D\u022D\u1E4F\u014D\u1E51\u1E53\u014F\u022F\u0231\u00F6\u022B\u1ECF\u0151\u01D2\u020D\u020F\u01A1\u1EDD\u1EDB\u1EE1\u1EDF\u1EE3\u1ECD\u1ED9\u01EB\u01ED\u00F8\u01FF\u0254\uA74B\uA74D\u0275'}, {'base':'oi','letters':'\u01A3'}, {'base':'ou','letters':'\u0223'}, {'base':'oo','letters':'\uA74F'}, {'base':'p','letters':'\u0070\u24DF\uFF50\u1E55\u1E57\u01A5\u1D7D\uA751\uA753\uA755'}, {'base':'q','letters':'\u0071\u24E0\uFF51\u024B\uA757\uA759'}, {'base':'r','letters':'\u0072\u24E1\uFF52\u0155\u1E59\u0159\u0211\u0213\u1E5B\u1E5D\u0157\u1E5F\u024D\u027D\uA75B\uA7A7\uA783'}, {'base':'s','letters':'\u0073\u24E2\uFF53\u00DF\u015B\u1E65\u015D\u1E61\u0161\u1E67\u1E63\u1E69\u0219\u015F\u023F\uA7A9\uA785\u1E9B'}, {'base':'t','letters':'\u0074\u24E3\uFF54\u1E6B\u1E97\u0165\u1E6D\u021B\u0163\u1E71\u1E6F\u0167\u01AD\u0288\u2C66\uA787'}, {'base':'tz','letters':'\uA729'}, {'base':'u','letters': '\u0075\u24E4\uFF55\u00F9\u00FA\u00FB\u0169\u1E79\u016B\u1E7B\u016D\u00FC\u01DC\u01D8\u01D6\u01DA\u1EE7\u016F\u0171\u01D4\u0215\u0217\u01B0\u1EEB\u1EE9\u1EEF\u1EED\u1EF1\u1EE5\u1E73\u0173\u1E77\u1E75\u0289'}, {'base':'v','letters':'\u0076\u24E5\uFF56\u1E7D\u1E7F\u028B\uA75F\u028C'}, {'base':'vy','letters':'\uA761'}, {'base':'w','letters':'\u0077\u24E6\uFF57\u1E81\u1E83\u0175\u1E87\u1E85\u1E98\u1E89\u2C73'}, {'base':'x','letters':'\u0078\u24E7\uFF58\u1E8B\u1E8D'}, {'base':'y','letters':'\u0079\u24E8\uFF59\u1EF3\u00FD\u0177\u1EF9\u0233\u1E8F\u00FF\u1EF7\u1E99\u1EF5\u01B4\u024F\u1EFF'}, {'base':'z','letters':'\u007A\u24E9\uFF5A\u017A\u1E91\u017C\u017E\u1E93\u1E95\u01B6\u0225\u0240\u2C6C\uA763'} ]; var diacriticsMap = {}; for (var i=0; i < defaultDiacriticsRemovalMap .length; i++){ var letters = defaultDiacriticsRemovalMap [i].letters; for (var j=0; j < letters.length ; j++){ diacriticsMap[letters[j]] = defaultDiacriticsRemovalMap [i].base; } } // "what?" version ... http://jsperf.com/diacritics/12 function removeDiacritics (str) { return str.replace(/[^\u0000-\u007E]/g, function(a){ return diacriticsMap[a] || a; }); } var paragraph = "L'avantage d'utiliser le lorem ipsum est bien évidemment de pouvoir créer des maquettes ou de remplir un site internet de contenus qui présentent un rendu s'approchant un maximum du rendu final. \n Par défaut lorem ipsum ne contient pas d'accent ni de caractères spéciaux contrairement à la langue française qui en contient beaucoup. C'est sur ce critère que nous proposons une solution avec cet outil qui générant du faux-texte lorem ipsum mais avec en plus, des caractères spéciaux tel que les accents ou certains symboles utiles pour la langue française. \n L'utilisation du lorem standard est facile d’utilisation mais lorsque le futur client utilisera votre logiciel il se peut que certains caractères spéciaux ou qu'un accent ne soient pas codés correctement. \n Cette page a pour but donc de pouvoir perdre le moins de temps possible et donc de tester directement si tous les encodages de base de donnée ou des sites sont les bons de plus il permet de récuperer un code css avec le texte formaté !"; alert(removeDiacritics(paragraph));

为了验证我的理论，我在http://jsperf.com/diacritics/12上写了一个测试。结果:

在Windows 8 64位的Chrome 28.0.1500.95 32位的测试: 使用正则表达式 4558 ops/sec±4.16%。慢37% 字符串生成器样式 7308次/秒±4.88%。最快

更新

在Windows 8 64位的Chrome 33.0.1750测试:

使用正则表达式 5260±1.25% ops/sec，慢76% 使用@skerit版本 22138±2.12% ops/sec最快

更新日期:2014年3月19日

增加丢失的“OE”变音符。

更新日期:2014年3月27日

使用一个更快的方法横向字符串使用js - "什么?"版本

更新日期:2014年5月14日

社区维基

我把维基上的答案翻译成typescript静态类，供那些来自angular的人使用。

export class DiacriticsRemover {

  private static diacriticsMap: Map<string, string> = new Map<string, string>();

  private static defaultDiacriticsRemovalMap = [
    {
      base: 'A',
      letters: '\u0041\u24B6\uFF21\u00C0\u00C1\u00C2\u1EA6\u1EA4\u1EAA\u1EA8\u00C3\u0100\u0102\u1EB0\u1EAE\u1EB4\u1EB2\u0226\u01E0\u00C4\u01DE\u1EA2\u00C5\u01FA\u01CD\u0200\u0202\u1EA0\u1EAC\u1EB6\u1E00\u0104\u023A\u2C6F'
    },
    {
      base: 'AA',
      letters: '\uA732'
    },
    {
      base: 'AE',
      letters: '\u00C6\u01FC\u01E2'
    },
    {
      base: 'AO',
      letters: '\uA734'
    },
    {
      base: 'AU',
      letters: '\uA736'
    },
    {
      base: 'AV',
      letters: '\uA738\uA73A'
    },
    {
      base: 'AY',
      letters: '\uA73C'
    },
    {
      base: 'B',
      letters: '\u0042\u24B7\uFF22\u1E02\u1E04\u1E06\u0243\u0182\u0181'
    },
    {
      base: 'C',
      letters: '\u0043\u24B8\uFF23\u0106\u0108\u010A\u010C\u00C7\u1E08\u0187\u023B\uA73E'
    },
    {
      base: 'D',
      letters: '\u0044\u24B9\uFF24\u1E0A\u010E\u1E0C\u1E10\u1E12\u1E0E\u0110\u018B\u018A\u0189\uA779\u00D0'
    },
    {
      base: 'DZ',
      letters: '\u01F1\u01C4'
    },
    {
      base: 'Dz',
      letters: '\u01F2\u01C5'
    },
    {
      base: 'E',
      letters: '\u0045\u24BA\uFF25\u00C8\u00C9\u00CA\u1EC0\u1EBE\u1EC4\u1EC2\u1EBC\u0112\u1E14\u1E16\u0114\u0116\u00CB\u1EBA\u011A\u0204\u0206\u1EB8\u1EC6\u0228\u1E1C\u0118\u1E18\u1E1A\u0190\u018E'
    },
    {
      base: 'F',
      letters: '\u0046\u24BB\uFF26\u1E1E\u0191\uA77B'
    },
    {
      base: 'G',
      letters: '\u0047\u24BC\uFF27\u01F4\u011C\u1E20\u011E\u0120\u01E6\u0122\u01E4\u0193\uA7A0\uA77D\uA77E'
    },
    {
      base: 'H',
      letters: '\u0048\u24BD\uFF28\u0124\u1E22\u1E26\u021E\u1E24\u1E28\u1E2A\u0126\u2C67\u2C75\uA78D'
    },
    {
      base: 'I',
      letters: '\u0049\u24BE\uFF29\u00CC\u00CD\u00CE\u0128\u012A\u012C\u0130\u00CF\u1E2E\u1EC8\u01CF\u0208\u020A\u1ECA\u012E\u1E2C\u0197'
    },
    {
      base: 'J',
      letters: '\u004A\u24BF\uFF2A\u0134\u0248'
    },
    {
      base: 'K',
      letters: '\u004B\u24C0\uFF2B\u1E30\u01E8\u1E32\u0136\u1E34\u0198\u2C69\uA740\uA742\uA744\uA7A2'
    },
    {
      base: 'L',
      letters: '\u004C\u24C1\uFF2C\u013F\u0139\u013D\u1E36\u1E38\u013B\u1E3C\u1E3A\u0141\u023D\u2C62\u2C60\uA748\uA746\uA780'
    },
    {
      base: 'LJ',
      letters: '\u01C7'
    },
    {
      base: 'Lj',
      letters: '\u01C8'
    },
    {
      base: 'M',
      letters: '\u004D\u24C2\uFF2D\u1E3E\u1E40\u1E42\u2C6E\u019C'
    },
    {
      base: 'N',
      letters: '\u004E\u24C3\uFF2E\u01F8\u0143\u00D1\u1E44\u0147\u1E46\u0145\u1E4A\u1E48\u0220\u019D\uA790\uA7A4'
    },
    {
      base: 'NJ',
      letters: '\u01CA'
    },
    {
      base: 'Nj',
      letters: '\u01CB'
    },
    {
      base: 'O',
      letters: '\u004F\u24C4\uFF2F\u00D2\u00D3\u00D4\u1ED2\u1ED0\u1ED6\u1ED4\u00D5\u1E4C\u022C\u1E4E\u014C\u1E50\u1E52\u014E\u022E\u0230\u00D6\u022A\u1ECE\u0150\u01D1\u020C\u020E\u01A0\u1EDC\u1EDA\u1EE0\u1EDE\u1EE2\u1ECC\u1ED8\u01EA\u01EC\u00D8\u01FE\u0186\u019F\uA74A\uA74C'
    },
    {
      base: 'OI',
      letters: '\u01A2'
    },
    {
      base: 'OO',
      letters: '\uA74E'
    },
    {
      base: 'OU',
      letters: '\u0222'
    },
    {
      base: 'OE',
      letters: '\u008C\u0152'
    },
    {
      base: 'oe',
      letters: '\u009C\u0153'
    },
    {
      base: 'P',
      letters: '\u0050\u24C5\uFF30\u1E54\u1E56\u01A4\u2C63\uA750\uA752\uA754'
    },
    {
      base: 'Q',
      letters: '\u0051\u24C6\uFF31\uA756\uA758\u024A'
    },
    {
      base: 'R',
      letters: '\u0052\u24C7\uFF32\u0154\u1E58\u0158\u0210\u0212\u1E5A\u1E5C\u0156\u1E5E\u024C\u2C64\uA75A\uA7A6\uA782'
    },
    {
      base: 'S',
      letters: '\u0053\u24C8\uFF33\u1E9E\u015A\u1E64\u015C\u1E60\u0160\u1E66\u1E62\u1E68\u0218\u015E\u2C7E\uA7A8\uA784'
    },
    {
      base: 'T',
      letters: '\u0054\u24C9\uFF34\u1E6A\u0164\u1E6C\u021A\u0162\u1E70\u1E6E\u0166\u01AC\u01AE\u023E\uA786'
    },
    {
      base: 'TZ',
      letters: '\uA728'
    },
    {
      base: 'U',
      letters: '\u0055\u24CA\uFF35\u00D9\u00DA\u00DB\u0168\u1E78\u016A\u1E7A\u016C\u00DC\u01DB\u01D7\u01D5\u01D9\u1EE6\u016E\u0170\u01D3\u0214\u0216\u01AF\u1EEA\u1EE8\u1EEE\u1EEC\u1EF0\u1EE4\u1E72\u0172\u1E76\u1E74\u0244'
    },
    {
      base: 'V',
      letters: '\u0056\u24CB\uFF36\u1E7C\u1E7E\u01B2\uA75E\u0245'
    },
    {
      base: 'VY',
      letters: '\uA760'
    },
    {
      base: 'W',
      letters: '\u0057\u24CC\uFF37\u1E80\u1E82\u0174\u1E86\u1E84\u1E88\u2C72'
    },
    {
      base: 'X',
      letters: '\u0058\u24CD\uFF38\u1E8A\u1E8C'
    },
    {
      base: 'Y',
      letters: '\u0059\u24CE\uFF39\u1EF2\u00DD\u0176\u1EF8\u0232\u1E8E\u0178\u1EF6\u1EF4\u01B3\u024E\u1EFE'
    },
    {
      base: 'Z',
      letters: '\u005A\u24CF\uFF3A\u0179\u1E90\u017B\u017D\u1E92\u1E94\u01B5\u0224\u2C7F\u2C6B\uA762'
    },
    {
      base: 'a',
      letters: '\u0061\u24D0\uFF41\u1E9A\u00E0\u00E1\u00E2\u1EA7\u1EA5\u1EAB\u1EA9\u00E3\u0101\u0103\u1EB1\u1EAF\u1EB5\u1EB3\u0227\u01E1\u00E4\u01DF\u1EA3\u00E5\u01FB\u01CE\u0201\u0203\u1EA1\u1EAD\u1EB7\u1E01\u0105\u2C65\u0250'
    },
    {
      base: 'aa',
      letters: '\uA733'
    },
    {
      base: 'ae',
      letters: '\u00E6\u01FD\u01E3'
    },
    {
      base: 'ao',
      letters: '\uA735'
    },
    {
      base: 'au',
      letters: '\uA737'
    },
    {
      base: 'av',
      letters: '\uA739\uA73B'
    },
    {
      base: 'ay',
      letters: '\uA73D'
    },
    {
      base: 'b',
      letters: '\u0062\u24D1\uFF42\u1E03\u1E05\u1E07\u0180\u0183\u0253'
    },
    {
      base: 'c',
      letters: '\u0063\u24D2\uFF43\u0107\u0109\u010B\u010D\u00E7\u1E09\u0188\u023C\uA73F\u2184'
    },
    {
      base: 'd',
      letters: '\u0064\u24D3\uFF44\u1E0B\u010F\u1E0D\u1E11\u1E13\u1E0F\u0111\u018C\u0256\u0257\uA77A'
    },
    {
      base: 'dz',
      letters: '\u01F3\u01C6'
    },
    {
      base: 'e',
      letters: '\u0065\u24D4\uFF45\u00E8\u00E9\u00EA\u1EC1\u1EBF\u1EC5\u1EC3\u1EBD\u0113\u1E15\u1E17\u0115\u0117\u00EB\u1EBB\u011B\u0205\u0207\u1EB9\u1EC7\u0229\u1E1D\u0119\u1E19\u1E1B\u0247\u025B\u01DD'
    },
    {
      base: 'f',
      letters: '\u0066\u24D5\uFF46\u1E1F\u0192\uA77C'
    },
    {
      base: 'g',
      letters: '\u0067\u24D6\uFF47\u01F5\u011D\u1E21\u011F\u0121\u01E7\u0123\u01E5\u0260\uA7A1\u1D79\uA77F'
    },
    {
      base: 'h',
      letters: '\u0068\u24D7\uFF48\u0125\u1E23\u1E27\u021F\u1E25\u1E29\u1E2B\u1E96\u0127\u2C68\u2C76\u0265'
    },
    {
      base: 'hv',
      letters: '\u0195'
    },
    {
      base: 'i',
      letters: '\u0069\u24D8\uFF49\u00EC\u00ED\u00EE\u0129\u012B\u012D\u00EF\u1E2F\u1EC9\u01D0\u0209\u020B\u1ECB\u012F\u1E2D\u0268\u0131'
    },
    {
      base: 'j',
      letters: '\u006A\u24D9\uFF4A\u0135\u01F0\u0249'
    },
    {
      base: 'k',
      letters: '\u006B\u24DA\uFF4B\u1E31\u01E9\u1E33\u0137\u1E35\u0199\u2C6A\uA741\uA743\uA745\uA7A3'
    },
    {
      base: 'l',
      letters: '\u006C\u24DB\uFF4C\u0140\u013A\u013E\u1E37\u1E39\u013C\u1E3D\u1E3B\u017F\u0142\u019A\u026B\u2C61\uA749\uA781\uA747'
    },
    {
      base: 'lj',
      letters: '\u01C9'
    },
    {
      base: 'm',
      letters: '\u006D\u24DC\uFF4D\u1E3F\u1E41\u1E43\u0271\u026F'
    },
    {
      base: 'n',
      letters: '\u006E\u24DD\uFF4E\u01F9\u0144\u00F1\u1E45\u0148\u1E47\u0146\u1E4B\u1E49\u019E\u0272\u0149\uA791\uA7A5'
    },
    {
      base: 'nj',
      letters: '\u01CC'
    },
    {
      base: 'o',
      letters: '\u006F\u24DE\uFF4F\u00F2\u00F3\u00F4\u1ED3\u1ED1\u1ED7\u1ED5\u00F5\u1E4D\u022D\u1E4F\u014D\u1E51\u1E53\u014F\u022F\u0231\u00F6\u022B\u1ECF\u0151\u01D2\u020D\u020F\u01A1\u1EDD\u1EDB\u1EE1\u1EDF\u1EE3\u1ECD\u1ED9\u01EB\u01ED\u00F8\u01FF\u0254\uA74B\uA74D\u0275'
    },
    {
      base: 'oi',
      letters: '\u01A3'
    },
    {
      base: 'ou',
      letters: '\u0223'
    },
    {
      base: 'oo',
      letters: '\uA74F'
    },
    {
      base: 'p',
      letters: '\u0070\u24DF\uFF50\u1E55\u1E57\u01A5\u1D7D\uA751\uA753\uA755'
    },
    {
      base: 'q',
      letters: '\u0071\u24E0\uFF51\u024B\uA757\uA759'
    },
    {
      base: 'r',
      letters: '\u0072\u24E1\uFF52\u0155\u1E59\u0159\u0211\u0213\u1E5B\u1E5D\u0157\u1E5F\u024D\u027D\uA75B\uA7A7\uA783'
    },
    {
      base: 's',
      letters: '\u0073\u24E2\uFF53\u00DF\u015B\u1E65\u015D\u1E61\u0161\u1E67\u1E63\u1E69\u0219\u015F\u023F\uA7A9\uA785\u1E9B'
    },
    {
      base: 't',
      letters: '\u0074\u24E3\uFF54\u1E6B\u1E97\u0165\u1E6D\u021B\u0163\u1E71\u1E6F\u0167\u01AD\u0288\u2C66\uA787'
    },
    {
      base: 'tz',
      letters: '\uA729'
    },
    {
      base: 'u',
      letters: '\u0075\u24E4\uFF55\u00F9\u00FA\u00FB\u0169\u1E79\u016B\u1E7B\u016D\u00FC\u01DC\u01D8\u01D6\u01DA\u1EE7\u016F\u0171\u01D4\u0215\u0217\u01B0\u1EEB\u1EE9\u1EEF\u1EED\u1EF1\u1EE5\u1E73\u0173\u1E77\u1E75\u0289'
    },
    {
      base: 'v',
      letters: '\u0076\u24E5\uFF56\u1E7D\u1E7F\u028B\uA75F\u028C'
    },
    {
      base: 'vy',
      letters: '\uA761'
    },
    {
      base: 'w',
      letters: '\u0077\u24E6\uFF57\u1E81\u1E83\u0175\u1E87\u1E85\u1E98\u1E89\u2C73'
    },
    {
      base: 'x',
      letters: '\u0078\u24E7\uFF58\u1E8B\u1E8D'
    },
    {
      base: 'y',
      letters: '\u0079\u24E8\uFF59\u1EF3\u00FD\u0177\u1EF9\u0233\u1E8F\u00FF\u1EF7\u1E99\u1EF5\u01B4\u024F\u1EFF'
    },
    {
      base: 'z',
      letters: '\u007A\u24E9\uFF5A\u017A\u1E91\u017C\u017E\u1E93\u1E95\u01B6\u0225\u0240\u2C6C\uA763'
    }
  ];

  private static isSetUp = false;

  public static removeDiacritics(text: string): string {
    if (!this.isSetUp) {
      this.setUp();
    }

    return text.replace(/[^\u0000-\u007E]/g, (a: string) => this.diacriticsMap.get(a) || a);
  }

  private static setUp(): void {
    // tslint:disable-next-line:prefer-for-of
    for (let i = 0; i < this.defaultDiacriticsRemovalMap.length; i++) {
      const letters = this.defaultDiacriticsRemovalMap[i].letters;

      // tslint:disable-next-line:prefer-for-of
      for (let j = 0; j < letters.length; j++) {
        this.diacriticsMap.set(letters[j], this.defaultDiacriticsRemovalMap[i].base);
      }
    }
    this.isSetUp = true;
  }
}

替换变音符的一种更简单的方法。

function replaceDiacritics(str){

  var diacritics = [
    {char: 'A', base: /[\300-\306]/g},
    {char: 'a', base: /[\340-\346]/g},
    {char: 'E', base: /[\310-\313]/g},
    {char: 'e', base: /[\350-\353]/g},
    {char: 'I', base: /[\314-\317]/g},
    {char: 'i', base: /[\354-\357]/g},
    {char: 'O', base: /[\322-\330]/g},
    {char: 'o', base: /[\362-\370]/g},
    {char: 'U', base: /[\331-\334]/g},
    {char: 'u', base: /[\371-\374]/g},
    {char: 'N', base: /[\321]/g},
    {char: 'n', base: /[\361]/g},
    {char: 'C', base: /[\307]/g},
    {char: 'c', base: /[\347]/g}
  ]

  diacritics.forEach(function(letter){
    str = str.replace(letter.base, letter.char);
  });

  return str;
};