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hiquest · May 1, 2019 · e7efd28 · e7efd28
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commit e7efd28
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Showing 11 changed files with 65 additions and 75 deletions.
diff --git a/exercises/easy/01_map.test.js b/exercises/easy/01_map.test.js
@@ -10,11 +10,10 @@
 */
 
 function map(arr, fn) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('maps an array', () =>
-	expect(map([1, 2, 3], x => x ** 2)).toEqual([1, 4, 9])
-)
+  expect(map([1, 2, 3], x => x ** 2)).toEqual([1, 4, 9]))
diff --git a/exercises/easy/02_filter.test.js b/exercises/easy/02_filter.test.js
@@ -8,11 +8,10 @@
 */
 
 function filter(arr, fn) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('maps an array', () =>
-	expect(filter([-1, 0, 1, 2, 3], x => x > 0)).toEqual([1, 2, 3])
-)
+  expect(filter([-1, 0, 1, 2, 3], x => x > 0)).toEqual([1, 2, 3]))
diff --git a/exercises/easy/03_uniq.test.js b/exercises/easy/03_uniq.test.js
@@ -6,11 +6,10 @@
 */
 
 function uniq(arr) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('removes duplicates from an array', () =>
-	expect(uniq([1, 1, 2, 3, 3, 1])).toEqual([1, 2, 3])
-)
+  expect(uniq([1, 1, 2, 3, 3, 1])).toEqual([1, 2, 3]))
diff --git a/exercises/extra-hard/10_curry.test.js b/exercises/extra-hard/10_curry.test.js
@@ -7,19 +7,18 @@
 */
 
 function curry(fn, arity) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('curries a function', () =>
-	expect(curry((x, y) => x + y)(5)(10)).toEqual(15)
-)
+  expect(curry((x, y) => x + y)(5)(10)).toEqual(15))
 
 test('curries a function of many arguments', () => {
-	const sum = curry((a, b, c) => a + b + c)
-	expect(sum(1, 2, 3)).toEqual(6)
-	expect(sum(1)(2, 3)).toEqual(6)
-	expect(sum(1, 2)(3)).toEqual(6)
-	expect(sum(1)(2)(3)).toEqual(6)
-})
+  const sum = curry((a, b, c) => a + b + c)
+  expect(sum(1, 2, 3)).toEqual(6)
+  expect(sum(1)(2, 3)).toEqual(6)
+  expect(sum(1, 2)(3)).toEqual(6)
+  expect(sum(1)(2)(3)).toEqual(6)
+})
diff --git a/exercises/extra-hard/11_debounce.test.js b/exercises/extra-hard/11_debounce.test.js
@@ -7,20 +7,20 @@
 */
 
 function debounce(func, wait, immediate) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('debounce', done => {
-	const costlyFn = jest.fn()
-	const fn = debounce(costlyFn, 100)
-	fn()
-	fn()
-	fn()
-	expect(costlyFn).toHaveBeenCalledTimes(0)
-	setTimeout(() => {
-		expect(costlyFn).toHaveBeenCalledTimes(1)
-		done()
-	}, 200)
-})
+  const costlyFn = jest.fn()
+  const fn = debounce(costlyFn, 100)
+  fn()
+  fn()
+  fn()
+  expect(costlyFn).toHaveBeenCalledTimes(0)
+  setTimeout(() => {
+    expect(costlyFn).toHaveBeenCalledTimes(1)
+    done()
+  }, 200)
+})
diff --git a/exercises/hard/07_sample.test.js b/exercises/hard/07_sample.test.js
@@ -6,16 +6,16 @@
 */
 
 function sample(arr, n) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('returns a sample from an array', () => {
-	const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9]
-	for (i = 0; i < 10; i++) {
-		const out = sample(numbers, 3)
-		expect(out.length).toEqual(3)
-		expect(out.every(x => x >= 1 && x <= 9)).toEqual(true)
-	}
-})
+  const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9]
+  for (i = 0; i < 10; i++) {
+    const out = sample(numbers, 3)
+    expect(out.length).toEqual(3)
+    expect(out.every(x => x >= 1 && x <= 9)).toEqual(true)
+  }
+})
diff --git a/exercises/hard/08_safeGet.test.js b/exercises/hard/08_safeGet.test.js
@@ -7,17 +7,14 @@
 */
 
 function safeGet(obj, path) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 const obj = { a: { b: { c: 42 } } }
 
-test('gets a value by path', () =>
-	expect(safeGet(obj, 'a.b.c')).toEqual(42)
-)
+test('gets a value by path', () => expect(safeGet(obj, 'a.b.c')).toEqual(42))
 
 test('returns null for non-existing values', () =>
-	expect(safeGet(obj, 'a.b.c.d')).toEqual(null)
-)
+  expect(safeGet(obj, 'a.b.c.d')).toEqual(null))
diff --git a/exercises/hard/09_memoize.test.js b/exercises/hard/09_memoize.test.js
@@ -7,17 +7,17 @@
 */
 
 function memoize(fn) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('caches the value of a function', () => {
-	const costlyFn = jest.fn()
-	const fn = memoize(costlyFn)
-	fn(1)
-	fn(1)
-	fn(2)
-	fn(1)
-	expect(costlyFn).toHaveBeenCalledTimes(2)
-})
+  const costlyFn = jest.fn()
+  const fn = memoize(costlyFn)
+  fn(1)
+  fn(1)
+  fn(2)
+  fn(1)
+  expect(costlyFn).toHaveBeenCalledTimes(2)
+})
diff --git a/exercises/medium/04_flatten.test.js b/exercises/medium/04_flatten.test.js
@@ -5,15 +5,12 @@
 */
 
 function flatten(arr) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
-test('flattens an array', () =>
-	expect(flatten([[1, 2], 3])).toEqual([1, 2, 3])
-)
+test('flattens an array', () => expect(flatten([[1, 2], 3])).toEqual([1, 2, 3]))
 
 test('deeply flattens an array', () =>
-	expect(flatten([[1], 2, [[3], 4]])).toEqual([1, 2, 3, 4])
-)
+  expect(flatten([[1], 2, [[3], 4]])).toEqual([1, 2, 3, 4]))
diff --git a/exercises/medium/05_reduce.test.js b/exercises/medium/05_reduce.test.js
@@ -7,11 +7,10 @@
 */
 
 function reduce(arr, fn, initial) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('reduces an array', () =>
-	expect(reduce([1, 2, 3, 4, 5], (a, b) => a + b, 0)).toEqual(15)
-)
+  expect(reduce([1, 2, 3, 4, 5], (a, b) => a + b, 0)).toEqual(15))
diff --git a/exercises/medium/06_break.test.js b/exercises/medium/06_break.test.js
@@ -6,21 +6,22 @@
 */
 
 function convert(arr) {
-	// TODO - IMPLEMENT ME
+  // TODO - IMPLEMENT ME
 }
 
 /* =========== DON'T CHANGE THE CODE AFTER THIS LINE =============== */
 
 test('reduces an array', () =>
-	expect(convert([
-		{ name: 'John', hobbies: ['singing', 'walking', 'playing guitar'] },
-		{ name: 'Terry', hobbies: ['swimming', 'playing guitar'] },
-		{ name: 'Anna', hobbies: ['walking', 'swimming', 'playing guitar'] },
-		{ name: 'Paul', hobbies: ['swimming', 'singing'] }
-	])).toEqual([
-		{ hobby: 'singing', users: ['John', 'Paul'] },
-		{ hobby: 'walking', users: ['John', 'Anna'] },
-		{ hobby: 'playing guitar', users: ['John', 'Terry', 'Anna'] },
-		{ hobby: 'swimming', users: ['Terry', 'Anna', 'Paul'] }
-	])
-)
+  expect(
+    convert([
+      { name: 'John', hobbies: ['singing', 'walking', 'playing guitar'] },
+      { name: 'Terry', hobbies: ['swimming', 'playing guitar'] },
+      { name: 'Anna', hobbies: ['walking', 'swimming', 'playing guitar'] },
+      { name: 'Paul', hobbies: ['swimming', 'singing'] },
+    ]),
+  ).toEqual([
+    { hobby: 'singing', users: ['John', 'Paul'] },
+    { hobby: 'walking', users: ['John', 'Anna'] },
+    { hobby: 'playing guitar', users: ['John', 'Terry', 'Anna'] },
+    { hobby: 'swimming', users: ['Terry', 'Anna', 'Paul'] },
+  ]))