text: const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' );
  const uuid = new Array( 36 );
  let rnd = 0, r;
  
  
  export const generateUUID = () => {
  
      for ( var i = 0; i < 36; i ++ ) {
  
          if ( i === 8 || i === 13 || i === 18 || i === 23 ) {
  
          	uuid[ i ] = '-';
  
          } else if ( i === 14 ) {
  
          	uuid[ i ] = '4';
  
          } else {
  
          	if ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0;
          	r = rnd & 0xf;
          	rnd = rnd >> 4;
          	uuid[ i ] = chars[ ( i === 19 ) ? ( r & 0x3 ) | 0x8 : r ];
  
          }
  
      }
  
      return uuid.join( '' );
  
  }
  
  
  