text: var flatten = require( 'arr-flatten' );
  var slice = [].slice;
  
  /*
  -  Return the arrDiference between the first array and additional arrays.
  */
  
  function arrDif( arr, arrays ) {
    var argsLen = arguments.length;
    var len = arr.length,
      i = -1;
    var res = [],
      arrays;
  
    if ( argsLen === 1 ) {
      return arr;
    }
  
    if ( argsLen > 2 ) {
      arrays = flatten( slice.call( arguments, 1 ) );
    }
  
    while ( ++i < len ) {
      if ( !~arrays.indexOf( arr[ i ] ) ) {
        res.push( arr[ i ] );
      }
    }
    return res;
  }
  
  module.exports = arrDif;
  