underscore.js _.difference[Array]

Similar to without, but returns the values from array that are not present in the otherarrays.

返回数组中的差集

_.difference([1, 2, 3, 4, 5], [5, 2, 10]);
=> [1, 3, 4]

源码:

  _.difference = function(array) {
    var rest = _.flatten(slice.call(arguments, 1), true);
    return _.filter(array, function(value){ return !_.include(rest, value); });
  };