Feat: add new Markdown parser (#39800)
and change all the challenges to new `md` format.
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Oliver Eyton-Williams
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@ -5,42 +5,160 @@ challengeType: 5
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forumTopicId: 16019
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---
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## Description
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<section id='description'>
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Compare and update the inventory stored in a 2D array against a second 2D array of a fresh delivery. Update the current existing inventory item quantities (in <code>arr1</code>). If an item cannot be found, add the new item and quantity into the inventory array. The returned inventory array should be in alphabetical order by item.
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</section>
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# --description--
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## Instructions
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<section id='instructions'>
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Compare and update the inventory stored in a 2D array against a second 2D array of a fresh delivery. Update the current existing inventory item quantities (in `arr1`). If an item cannot be found, add the new item and quantity into the inventory array. The returned inventory array should be in alphabetical order by item.
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</section>
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# --hints--
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: The function <code>updateInventory</code> should return an array.
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testString: assert.isArray(updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]));
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- text: <code>updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])</code> should return an array with a length of 6.
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testString: assert.equal(updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]).length, 6);
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- text: <code>updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])</code> should return <code>[[88, "Bowling Ball"], [2, "Dirty Sock"], [3, "Hair Pin"], [3, "Half-Eaten Apple"], [5, "Microphone"], [7, "Toothpaste"]]</code>.
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testString: assert.deepEqual(updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]), [[88, "Bowling Ball"], [2, "Dirty Sock"], [3, "Hair Pin"], [3, "Half-Eaten Apple"], [5, "Microphone"], [7, "Toothpaste"]]);
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- text: <code>updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [])</code> should return <code>[[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]]</code>.
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testString: assert.deepEqual(updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], []), [[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]]);
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- text: <code>updateInventory([], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])</code> should return <code>[[67, "Bowling Ball"], [2, "Hair Pin"], [3, "Half-Eaten Apple"], [7, "Toothpaste"]]</code>.
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testString: assert.deepEqual(updateInventory([], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]), [[67, "Bowling Ball"], [2, "Hair Pin"], [3, "Half-Eaten Apple"], [7, "Toothpaste"]]);
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- text: <code>updateInventory([[0, "Bowling Ball"], [0, "Dirty Sock"], [0, "Hair Pin"], [0, "Microphone"]], [[1, "Hair Pin"], [1, "Half-Eaten Apple"], [1, "Bowling Ball"], [1, "Toothpaste"]])</code> should return <code>[[1, "Bowling Ball"], [0, "Dirty Sock"], [1, "Hair Pin"], [1, "Half-Eaten Apple"], [0, "Microphone"], [1, "Toothpaste"]]</code>.
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testString: assert.deepEqual(updateInventory([[0, "Bowling Ball"], [0, "Dirty Sock"], [0, "Hair Pin"], [0, "Microphone"]], [[1, "Hair Pin"], [1, "Half-Eaten Apple"], [1, "Bowling Ball"], [1, "Toothpaste"]]), [[1, "Bowling Ball"], [0, "Dirty Sock"], [1, "Hair Pin"], [1, "Half-Eaten Apple"], [0, "Microphone"], [1, "Toothpaste"]]);
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The function `updateInventory` should return an array.
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```js
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assert.isArray(
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updateInventory(
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[
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[21, 'Bowling Ball'],
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[2, 'Dirty Sock'],
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[1, 'Hair Pin'],
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[5, 'Microphone']
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],
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[
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[2, 'Hair Pin'],
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[3, 'Half-Eaten Apple'],
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[67, 'Bowling Ball'],
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[7, 'Toothpaste']
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]
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)
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);
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```
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</section>
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`updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])` should return an array with a length of 6.
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## Challenge Seed
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<section id='challengeSeed'>
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```js
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assert.equal(
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updateInventory(
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[
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[21, 'Bowling Ball'],
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[2, 'Dirty Sock'],
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[1, 'Hair Pin'],
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[5, 'Microphone']
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],
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[
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[2, 'Hair Pin'],
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[3, 'Half-Eaten Apple'],
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[67, 'Bowling Ball'],
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[7, 'Toothpaste']
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]
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).length,
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6
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);
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```
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<div id='js-seed'>
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`updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])` should return `[[88, "Bowling Ball"], [2, "Dirty Sock"], [3, "Hair Pin"], [3, "Half-Eaten Apple"], [5, "Microphone"], [7, "Toothpaste"]]`.
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```js
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assert.deepEqual(
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updateInventory(
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[
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[21, 'Bowling Ball'],
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[2, 'Dirty Sock'],
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[1, 'Hair Pin'],
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[5, 'Microphone']
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],
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[
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[2, 'Hair Pin'],
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[3, 'Half-Eaten Apple'],
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[67, 'Bowling Ball'],
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[7, 'Toothpaste']
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]
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),
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[
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[88, 'Bowling Ball'],
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[2, 'Dirty Sock'],
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[3, 'Hair Pin'],
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[3, 'Half-Eaten Apple'],
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[5, 'Microphone'],
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[7, 'Toothpaste']
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]
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);
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```
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`updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [])` should return `[[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]]`.
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```js
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assert.deepEqual(
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updateInventory(
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[
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[21, 'Bowling Ball'],
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[2, 'Dirty Sock'],
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[1, 'Hair Pin'],
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[5, 'Microphone']
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],
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[]
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),
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[
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[21, 'Bowling Ball'],
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[2, 'Dirty Sock'],
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[1, 'Hair Pin'],
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[5, 'Microphone']
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]
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);
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```
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`updateInventory([], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])` should return `[[67, "Bowling Ball"], [2, "Hair Pin"], [3, "Half-Eaten Apple"], [7, "Toothpaste"]]`.
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```js
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assert.deepEqual(
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updateInventory(
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[],
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[
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[2, 'Hair Pin'],
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[3, 'Half-Eaten Apple'],
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[67, 'Bowling Ball'],
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[7, 'Toothpaste']
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]
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),
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[
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[67, 'Bowling Ball'],
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[2, 'Hair Pin'],
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[3, 'Half-Eaten Apple'],
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[7, 'Toothpaste']
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]
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);
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```
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`updateInventory([[0, "Bowling Ball"], [0, "Dirty Sock"], [0, "Hair Pin"], [0, "Microphone"]], [[1, "Hair Pin"], [1, "Half-Eaten Apple"], [1, "Bowling Ball"], [1, "Toothpaste"]])` should return `[[1, "Bowling Ball"], [0, "Dirty Sock"], [1, "Hair Pin"], [1, "Half-Eaten Apple"], [0, "Microphone"], [1, "Toothpaste"]]`.
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```js
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assert.deepEqual(
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updateInventory(
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[
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[0, 'Bowling Ball'],
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[0, 'Dirty Sock'],
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[0, 'Hair Pin'],
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[0, 'Microphone']
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],
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[
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[1, 'Hair Pin'],
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[1, 'Half-Eaten Apple'],
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[1, 'Bowling Ball'],
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[1, 'Toothpaste']
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]
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),
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[
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[1, 'Bowling Ball'],
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[0, 'Dirty Sock'],
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[1, 'Hair Pin'],
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[1, 'Half-Eaten Apple'],
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[0, 'Microphone'],
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[1, 'Toothpaste']
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]
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);
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```
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# --seed--
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## --seed-contents--
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```js
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function updateInventory(arr1, arr2) {
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@ -65,15 +183,7 @@ var newInv = [
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updateInventory(curInv, newInv);
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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# --solutions--
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```js
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function updateInventory(arr1, arr2) {
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@ -114,7 +224,4 @@ var newInv = [
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];
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updateInventory(curInv, newInv);
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```
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</section>
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