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JavaScript's functional programming helper library.

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// Returns a function that is the composition of a list of functions, each
// consuming the return value of the function that follows.
export default function compose() {
  var args = arguments;
  var start = args.length - 1;
  return function() {
    var i = start;
    var result = args[start].apply(this, arguments);
    while (i--) result = args[i].call(this, result);
    return result;
  };
}