fix naming

This commit is contained in:
Stefan Feješ
2017-12-17 15:41:31 +01:00
parent 8cea052bb1
commit b848906fe5
73 changed files with 18 additions and 18 deletions

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@ -3,7 +3,7 @@
Use `crypto` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4. Use `crypto` API to generate a UUID, compliant with [RFC4122](https://www.ietf.org/rfc/rfc4122.txt) version 4.
```js ```js
const uuid = () => const uuidGenerator = () =>
([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c => ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16) (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
); );

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@ -3,6 +3,6 @@
Use `Array.filter()` to create a new array that contains every nth element of a given array. Use `Array.filter()` to create a new array that contains every nth element of a given array.
```js ```js
const everynth = (arr, nth) => arr.filter((e, i) => i % nth === 0); const everyNth = (arr, nth) => arr.filter((e, i) => i % nth === 0);
// everynth([1,2,3,4,5,6], 2) -> [ 1, 3, 5 ] // everynth([1,2,3,4,5,6], 2) -> [ 1, 3, 5 ]
``` ```

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@ -3,7 +3,7 @@
Use `Array.map()`, `split()` and `Array.join()` to join the mapped array for converting a three-digit RGB notated hexadecimal color-code to the six-digit form. Use `Array.map()`, `split()` and `Array.join()` to join the mapped array for converting a three-digit RGB notated hexadecimal color-code to the six-digit form.
`Array.slice()` is used to remove `#` from string start since it's added once. `Array.slice()` is used to remove `#` from string start since it's added once.
```js ```js
const convertHex = shortHex => const extendHex = shortHex =>
'#' + shortHex.slice(shortHex.startsWith('#') ? 1 : 0).split().map(x => x+x).join() '#' + shortHex.slice(shortHex.startsWith('#') ? 1 : 0).split().map(x => x+x).join()
// convertHex('#03f') -> '#0033ff' // convertHex('#03f') -> '#0033ff'
// convertHex('05a') -> '#0055aa' // convertHex('05a') -> '#0055aa'

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@ -4,7 +4,7 @@ Use `pageXOffset` and `pageYOffset` if they are defined, otherwise `scrollLeft`
You can omit `el` to use a default value of `window`. You can omit `el` to use a default value of `window`.
```js ```js
const getScrollPos = (el = window) => const getScrollPosition = (el = window) =>
({x: (el.pageXOffset !== undefined) ? el.pageXOffset : el.scrollLeft, ({x: (el.pageXOffset !== undefined) ? el.pageXOffset : el.scrollLeft,
y: (el.pageYOffset !== undefined) ? el.pageYOffset : el.scrollTop}); y: (el.pageYOffset !== undefined) ? el.pageYOffset : el.scrollTop});
// getScrollPos() -> {x: 0, y: 200} // getScrollPos() -> {x: 0, y: 200}

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@ -5,6 +5,6 @@ Base case is when `y` equals `0`. In this case, return `x`.
Otherwise, return the GCD of `y` and the remainder of the division `x/y`. Otherwise, return the GCD of `y` and the remainder of the division `x/y`.
```js ```js
const gcd = (x, y) => !y ? x : gcd(y, x % y); const greatestCommonDivisor = (x, y) => !y ? x : gcd(y, x % y);
// gcd (8, 36) -> 4 // gcd (8, 36) -> 4
``` ```

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@ -3,6 +3,6 @@
Use `arr.length - 1` to compute index of the last element of the given array and returning it. Use `arr.length - 1` to compute index of the last element of the given array and returning it.
```js ```js
const last = arr => arr[arr.length - 1]; const lastOfArray = arr => arr[arr.length - 1];
// last([1,2,3]) -> 3 // last([1,2,3]) -> 3
``` ```

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@ -4,7 +4,7 @@ Use the greatest common divisor (GCD) formula and `Math.abs()` to determine the
The GCD formula uses recursion. The GCD formula uses recursion.
```js ```js
const lcm = (x,y) => { const leastCommonMultiple = (x,y) => {
const gcd = (x, y) => !y ? x : gcd(y, x % y); const gcd = (x, y) => !y ? x : gcd(y, x % y);
return Math.abs(x*y)/(gcd(x,y)); return Math.abs(x*y)/(gcd(x,y));
}; };

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@ -1,11 +1,11 @@
### Nth element of array ### Nth element of array
Use `Array.slice()` to get an array containing the nth element at the first place. Use `Array.slice()` to get an array containing the nth element at the first place.
If the index is out of bounds, return `[]`. If the index is out of bounds, return `[]`.
Omit the second argument, `n`, to get the first element of the array. Omit the second argument, `n`, to get the first element of the array.
```js ```js
const nth = (arr, n=0) => (n>0? arr.slice(n,n+1) : arr.slice(n))[0]; const nthElement = (arr, n=0) => (n>0? arr.slice(n,n+1) : arr.slice(n))[0];
// nth(['a','b','c'],1) -> 'b' // nth(['a','b','c'],1) -> 'b'
// nth(['a','b','b']-2) -> 'a' // nth(['a','b','b']-2) -> 'a'
``` ```

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@ -4,7 +4,7 @@ Use `Array.reduce()` with the spread operator (`...`) to perform left-to-right f
The first (leftmost) function can accept one or more arguments; the remaining functions must be unary. The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
```js ```js
const pipe = (...fns) => fns.reduce((f, g) => (...args) => g(f(...args))); const pipeFunctions = (...fns) => fns.reduce((f, g) => (...args) => g(f(...args)));
/* /*
const add5 = x => x + 5 const add5 = x => x + 5
const multiply = (x, y) => x * y const multiply = (x, y) => x * y

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@ -3,6 +3,6 @@
Use `Math.random()` to generate a random value, map it to the desired range using multiplication. Use `Math.random()` to generate a random value, map it to the desired range using multiplication.
```js ```js
const randomInRange = (min, max) => Math.random() * (max - min) + min; const randomNumberInRange = (min, max) => Math.random() * (max - min) + min;
// randomInRange(2,10) -> 6.0211363285087005 // randomInRange(2,10) -> 6.0211363285087005
``` ```

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@ -3,7 +3,7 @@
Run an array of promises in series using `Array.reduce()` by creating a promise chain, where each promise returns the next promise when resolved. Run an array of promises in series using `Array.reduce()` by creating a promise chain, where each promise returns the next promise when resolved.
```js ```js
const series = ps => ps.reduce((p, next) => p.then(next), Promise.resolve()); const runPromisesInSeries = ps => ps.reduce((p, next) => p.then(next), Promise.resolve());
// const delay = (d) => new Promise(r => setTimeout(r, d)) // const delay = (d) => new Promise(r => setTimeout(r, d))
// series([() => delay(1000), () => delay(2000)]) -> executes each promise sequentially, taking a total of 3 seconds to complete // series([() => delay(1000), () => delay(2000)]) -> executes each promise sequentially, taking a total of 3 seconds to complete
``` ```

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@ -3,6 +3,6 @@
Use `Array.sort()` to reorder elements, using `Math.random()` in the comparator. Use `Array.sort()` to reorder elements, using `Math.random()` in the comparator.
```js ```js
const shuffle = arr => arr.sort(() => Math.random() - 0.5); const shuffleArray = arr => arr.sort(() => Math.random() - 0.5);
// shuffle([1,2,3]) -> [2,3,1] // shuffle([1,2,3]) -> [2,3,1]
``` ```

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@ -6,7 +6,7 @@ Use `window.speechSynthesis.speak()` to play the message.
Learn more about the [SpeechSynthesisUtterance interface of the Web Speech API](https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance). Learn more about the [SpeechSynthesisUtterance interface of the Web Speech API](https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance).
```js ```js
const speak = message => { const speechSynthesis = message => {
const msg = new SpeechSynthesisUtterance(message); const msg = new SpeechSynthesisUtterance(message);
msg.voice = window.speechSynthesis.getVoices()[0]; msg.voice = window.speechSynthesis.getVoices()[0];
window.speechSynthesis.speak(msg); window.speechSynthesis.speak(msg);

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@ -3,6 +3,6 @@
Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`. Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`.
```js ```js
const sum = arr => arr.reduce((acc, val) => acc + val, 0); const sumArrayNumbers = arr => arr.reduce((acc, val) => acc + val, 0);
// sum([1,2,3,4]) -> 10 // sum([1,2,3,4]) -> 10
``` ```

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@ -3,7 +3,7 @@
Return `arr.slice(1)` if the array's `length` is more than `1`, otherwise return the whole array. Return `arr.slice(1)` if the array's `length` is more than `1`, otherwise return the whole array.
```js ```js
const tail = arr => arr.length > 1 ? arr.slice(1) : arr; const tailOfList = arr => arr.length > 1 ? arr.slice(1) : arr;
// tail([1,2,3]) -> [2,3] // tail([1,2,3]) -> [2,3]
// tail([1]) -> [1] // tail([1]) -> [1]
``` ```

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@ -4,7 +4,7 @@ Determine if the string's `length` is greater than `num`.
Return the string truncated to the desired length, with `...` appended to the end or the original string. Return the string truncated to the desired length, with `...` appended to the end or the original string.
```js ```js
const truncate = (str, num) => const truncateString = (str, num) =>
str.length > num ? str.slice(0, num > 3 ? num - 3 : num) + '...' : str; str.length > num ? str.slice(0, num > 3 ? num - 3 : num) + '...' : str;
// truncate('boomerang', 7) -> 'boom...' // truncate('boomerang', 7) -> 'boom...'
``` ```

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@ -3,6 +3,6 @@
Use ES6 `Set` and the `...rest` operator to discard all duplicated values. Use ES6 `Set` and the `...rest` operator to discard all duplicated values.
```js ```js
const unique = arr => [...new Set(arr)]; const uniqueValuesOfArray = arr => [...new Set(arr)];
// unique([1,2,2,3,4,4,5]) -> [1,2,3,4,5] // unique([1,2,2,3,4,4,5]) -> [1,2,3,4,5]
``` ```