Simple function that create slugs

slugify.js

const slugify = text => {
  // Use hash map for special characters 
  let specialChars = {"à":'a',"ä":'a',"á":'a',"â":'a',"æ":'a',"å":'a',"ë":'e',"è":'e',"é":'e', "ê":'e',"î":'i',"ï":'i',"ì":'i',"í":'i',"ò":'o',"ó":'o',"ö":'o',"ô":'o',"ø":'o',"ù":'o',"ú":'u',"ü":'u',"û":'u',"ñ":'n',"ç":'c',"ß":'s',"ÿ":'y',"œ":'o',"ŕ":'r',"ś":'s',"ń":'n',"ṕ":'p',"ẃ":'w',"ǵ":'g',"ǹ":'n',"ḿ":'m',"ǘ":'u',"ẍ":'x',"ź":'z',"ḧ":'h',"·":'-',"/":'-',"_":'-',",":'-',":":'-',";":'-'};

    return text.toString().toLowerCase()
      .replace(/\s+/g, '-')           // Replace spaces with -
      .replace(/./g,(target, index, str) => specialChars[target] || target) // Replace special characters using the hash map
      .replace(/&/g, '-and-')         // Replace & with 'and'
      .replace(/[^\w\-]+/g, '')       // Remove all non-word chars
      .replace(/\-\-+/g, '-')         // Replace multiple - with single -
      .replace(/^-+/, '')             // Trim - from start of text
      .replace(/-+$/, '');             // Trim - from end of text
};