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diff --git a/school/node_modules/source-map/lib/quick-sort.js b/school/node_modules/source-map/lib/quick-sort.js
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-/* -*- Mode: js; js-indent-level: 2; -*- */
-/*
- * Copyright 2011 Mozilla Foundation and contributors
- * Licensed under the New BSD license. See LICENSE or:
- * http://opensource.org/licenses/BSD-3-Clause
- */
-
-// It turns out that some (most?) JavaScript engines don't self-host
-// `Array.prototype.sort`. This makes sense because C++ will likely remain
-// faster than JS when doing raw CPU-intensive sorting. However, when using a
-// custom comparator function, calling back and forth between the VM's C++ and
-// JIT'd JS is rather slow *and* loses JIT type information, resulting in
-// worse generated code for the comparator function than would be optimal. In
-// fact, when sorting with a comparator, these costs outweigh the benefits of
-// sorting in C++. By using our own JS-implemented Quick Sort (below), we get
-// a ~3500ms mean speed-up in `bench/bench.html`.
-
-/**
- * Swap the elements indexed by `x` and `y` in the array `ary`.
- *
- * @param {Array} ary
- *        The array.
- * @param {Number} x
- *        The index of the first item.
- * @param {Number} y
- *        The index of the second item.
- */
-function swap(ary, x, y) {
-  var temp = ary[x];
-  ary[x] = ary[y];
-  ary[y] = temp;
-}
-
-/**
- * Returns a random integer within the range `low .. high` inclusive.
- *
- * @param {Number} low
- *        The lower bound on the range.
- * @param {Number} high
- *        The upper bound on the range.
- */
-function randomIntInRange(low, high) {
-  return Math.round(low + (Math.random() * (high - low)));
-}
-
-/**
- * The Quick Sort algorithm.
- *
- * @param {Array} ary
- *        An array to sort.
- * @param {function} comparator
- *        Function to use to compare two items.
- * @param {Number} p
- *        Start index of the array
- * @param {Number} r
- *        End index of the array
- */
-function doQuickSort(ary, comparator, p, r) {
-  // If our lower bound is less than our upper bound, we (1) partition the
-  // array into two pieces and (2) recurse on each half. If it is not, this is
-  // the empty array and our base case.
-
-  if (p < r) {
-    // (1) Partitioning.
-    //
-    // The partitioning chooses a pivot between `p` and `r` and moves all
-    // elements that are less than or equal to the pivot to the before it, and
-    // all the elements that are greater than it after it. The effect is that
-    // once partition is done, the pivot is in the exact place it will be when
-    // the array is put in sorted order, and it will not need to be moved
-    // again. This runs in O(n) time.
-
-    // Always choose a random pivot so that an input array which is reverse
-    // sorted does not cause O(n^2) running time.
-    var pivotIndex = randomIntInRange(p, r);
-    var i = p - 1;
-
-    swap(ary, pivotIndex, r);
-    var pivot = ary[r];
-
-    // Immediately after `j` is incremented in this loop, the following hold
-    // true:
-    //
-    //   * Every element in `ary[p .. i]` is less than or equal to the pivot.
-    //
-    //   * Every element in `ary[i+1 .. j-1]` is greater than the pivot.
-    for (var j = p; j < r; j++) {
-      if (comparator(ary[j], pivot) <= 0) {
-        i += 1;
-        swap(ary, i, j);
-      }
-    }
-
-    swap(ary, i + 1, j);
-    var q = i + 1;
-
-    // (2) Recurse on each half.
-
-    doQuickSort(ary, comparator, p, q - 1);
-    doQuickSort(ary, comparator, q + 1, r);
-  }
-}
-
-/**
- * Sort the given array in-place with the given comparator function.
- *
- * @param {Array} ary
- *        An array to sort.
- * @param {function} comparator
- *        Function to use to compare two items.
- */
-exports.quickSort = function (ary, comparator) {
-  doQuickSort(ary, comparator, 0, ary.length - 1);
-};