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Commit 32fdc45

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remarcmijremarcmij
authored
Merge pull request HackYourFuture#268 from HackYourFuture/prep-class20
Prep class20
2 parents 44e27ed + 8e3d479 commit 32fdc45
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‎Week1/README.md‎

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@@ -46,7 +46,7 @@ In week one we will discuss the following topics:
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"files.autoSave": "onFocusChange",
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"prettier.printWidth": 100,
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"prettier.singleQuote": true,
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"prettier.trailingComma": "es5"
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"prettier.trailingComma": "all"
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}
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```
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‎Week1/homework/app.js‎

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+1-1Lines changed: 1 addition & 1 deletion
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@@ -3,7 +3,7 @@
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{
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const bookTitles = [
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// Replace with your own book titles
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'harry_potter_chamber_secrets'
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'harry_potter_chamber_secrets',
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];
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// Replace with your own code
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‎Week2/homework/maartjes-work.js‎

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@@ -3,43 +3,43 @@
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const monday = [
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{
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name: 'Write a summary HTML/CSS',
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duration: 180
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duration: 180,
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},
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{
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name: 'Some web development',
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duration: 120
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duration: 120,
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},
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{
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name: 'Fix homework for class10',
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duration: 20
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duration: 20,
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},
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{
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name: 'Talk to a lot of people',
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duration: 200
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}
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duration: 200,
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},
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];
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const tuesday = [
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{
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name: 'Keep writing summary',
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duration: 240
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duration: 240,
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},
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{
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name: 'Some more web development',
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duration: 180
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duration: 180,
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},
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{
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name: 'Staring out the window',
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duration: 10
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duration: 10,
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},
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{
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name: 'Talk to a lot of people',
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duration: 200
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duration: 200,
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},
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{
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name: 'Look at application assignments new students',
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duration: 40
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}
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duration: 40,
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},
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];
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const maartjesTasks = monday.concat(tuesday);
@@ -61,5 +61,5 @@ console.log(`Maartje has earned €${'replace this string with the earnings roun
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module.exports = {
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maartjesTasks,
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maartjesHourlyRate,
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computeEarnings
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computeEarnings,
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};
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‎Week2/homework/map-filter.js‎

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+1-1Lines changed: 1 addition & 1 deletion
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@@ -11,5 +11,5 @@ console.log(doubleOddNumbers(myNumbers));
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// Do not change or remove anything below this line
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module.exports = {
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myNumbers,
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doubleOddNumbers
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doubleOddNumbers,
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};
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‎Week3/MAKEME.md‎

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@@ -112,8 +112,13 @@ const arr2d = [[1, 2], [3, 4], [5, 6]];
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(for math people you can think of this as a matrix)
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How would you print all the items of an array with 3 dimensions?
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How about with _K_ dimensions?
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How would you flatten out all the items of an array with 2 dimensions into a one-dimensional array? Flattening out the `arr2d` array above would result in:
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```js
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const flattenedArr = [1, 2, 3, 4, 5, 6];
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```
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How about 3 dimensions? How about with _K_ dimensions?
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What if you didn't know how deep the array was nested? (You don't have to write code for this but think about it.)
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**2.7** Here are two functions that look like they do the something similar but they print different results. Please explain what's going on here.
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‎Week3/homework/step2-3.js‎

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@@ -2,7 +2,7 @@
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// Use a 'for' loop
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function repeatStringNumTimesWithFor(str, num) {
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// eslint-disable-next-line
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// eslint-disable-next-line prefer-const
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let result = '';
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// Replace this comment and the next line with your code
@@ -15,7 +15,7 @@ console.log('for', repeatStringNumTimesWithFor('abc', 3));
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// Use a 'while' loop
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function repeatStringNumTimesWithWhile(str, num) {
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// eslint-disable-next-line
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// eslint-disable-next-line prefer-const
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let result = '';
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// Replace this comment and the next line with your code
@@ -28,7 +28,7 @@ console.log('while', repeatStringNumTimesWithWhile('abc', 3));
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// Use a 'do...while' loop
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function repeatStringNumTimesWithDoWhile(str, num) {
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// eslint-disable-next-line
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// eslint-disable-next-line prefer-const
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let result = '';
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// Replace this comment and the next line with your code
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module.exports = {
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repeatStringNumTimesWithFor,
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repeatStringNumTimesWithWhile,
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repeatStringNumTimesWithDoWhile
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repeatStringNumTimesWithDoWhile,
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};
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‎Week3/homework/step2-6.js‎

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@@ -3,21 +3,21 @@
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const arr2d = [[1, 2], [3, 4], [5, 6]];
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const arr3d = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]];
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function printArray2d(arr) {
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function flattenArray2d(arr) {
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// Replace this comment and the next line with your code
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console.log(arr);
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}
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function printArray3d(arr) {
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function flattenArray3d(arr) {
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// Replace this comment and the next line with your code
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console.log(arr);
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}
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printArray2d(arr2d);
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printArray3d(arr3d);
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console.log(flattenArray2d(arr2d)); // -> [1, 2, 3, 4, 5, 6]
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console.log(flattenArray3d(arr3d)); // -> [1, 2, 3, 4, 5, 6, 7, 8]
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// Do not change or remove anything below this line
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module.exports = {
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printArray2d,
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printArray3d
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flattenArray2d,
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flattenArray3d,
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};
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‎Week3/test/console-test.js‎

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function consoleTest(filename, expectedOutput) {
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let outputData = '';
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// eslint-disable-next-line no-return-assign
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const storeLog = (...inputs) => (outputData += inputs.join(' '));
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test(filename, () => {
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console['log'] = jest.fn(storeLog);
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console.log = jest.fn(storeLog);
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// eslint-disable-next-line global-require
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require('../homework/' + filename);
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expect(outputData).toBe(expectedOutput);
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});
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‎Week3/test/step2-3.test.js‎

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const {
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repeatStringNumTimesWithFor,
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repeatStringNumTimesWithWhile,
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repeatStringNumTimesWithDoWhile
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repeatStringNumTimesWithDoWhile,
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} = require('../homework/step2-3');
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describe('step2-3 with for-loop', () => {
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‎Week3/test/step2-6.test.js‎

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/* eslint-disable no-return-assign, dot-notation */
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const { printArray2d, printArray3d } = require('../homework/step2-6');
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const { flattenArray2d, flattenArray3d } = require('../homework/step2-6');
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const arr2d = [[1, 2], [3, 4], [5, 6]];
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const expected2d = [1, 2, 3, 4, 5, 6].join('');
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const expected2d = [1, 2, 3, 4, 5, 6];
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const arr3d = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]];
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const expected3d = [1, 2, 3, 4, 5, 6, 7, 8].join('');
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const expected3d = [1, 2, 3, 4, 5, 6, 7, 8];
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describe('step2-6', () => {
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let outputData;
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const storeLog = (...inputs) => (outputData += inputs.join(' '));
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14-
test('printArray2d -> 1, 2, 3, 4, 5, 6', () => {
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outputData = '';
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console['log'] = jest.fn(storeLog);
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printArray2d(arr2d);
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expect(outputData).toBe(expected2d);
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test('flattenArray2d -> [1, 2, 3, 4, 5, 6]', () => {
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const result = flattenArray2d(arr2d);
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expect(result).toEqual(expected2d);
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});
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21-
test('printArray3d -> 1, 2, 3, 4, 5, 6, 7, 8', () => {
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outputData = '';
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console['log'] = jest.fn(storeLog);
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printArray3d(arr3d);
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expect(outputData).toBe(expected3d);
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test('flattenArray3d -> [1, 2, 3, 4, 5, 6, 7, 8]', () => {
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const result = flattenArray3d(arr3d);
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expect(result).toEqual(expected3d);
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});
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});

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