diff --git a/snippets/JSONToDate.md b/snippets/JSONToDate.md
index c5fa32175..311da31e7 100644
--- a/snippets/JSONToDate.md
+++ b/snippets/JSONToDate.md
@@ -7,7 +7,7 @@ Use `Date()`, to convert dates in JSON format to readable format (`dd/mm/yyyy`).
```js
const JSONToDate = arr => {
const dt = new Date(parseInt(arr.toString().substr(6)));
- return `${ dt.getDate() }/${ dt.getMonth() + 1 }/${ dt.getFullYear() }`
+ return `${dt.getDate()}/${dt.getMonth() + 1}/${dt.getFullYear()}`;
};
// JSONToDate(/Date(1489525200000)/) -> "14/3/2017"
```
diff --git a/snippets/JSONToFile.md b/snippets/JSONToFile.md
index 3677fc5e3..984e516b6 100644
--- a/snippets/JSONToFile.md
+++ b/snippets/JSONToFile.md
@@ -6,6 +6,6 @@ Use `fs.writeFile()`, template literals and `JSON.stringify()` to write a `json`
```js
const fs = require('fs');
-const JSONToFile = (obj, filename) => fs.writeFile(`${filename}.json`, JSON.stringify(obj, null, 2))
+const JSONToFile = (obj, filename) => fs.writeFile(`${filename}.json`, JSON.stringify(obj, null, 2));
// JSONToFile({test: "is passed"}, 'testJsonFile') -> writes the object to 'testJsonFile.json'
```
diff --git a/snippets/arrayGcd.md b/snippets/arrayGcd.md
index 39a154059..fde889d05 100644
--- a/snippets/arrayGcd.md
+++ b/snippets/arrayGcd.md
@@ -5,10 +5,10 @@ Calculates the greatest common denominator (gcd) of an array of numbers.
Use `Array.reduce()` and the `gcd` formula (uses recursion) to calculate the greatest common denominator of an array of numbers.
```js
-const arrayGcd = arr =>{
+const arrayGcd = arr => {
const gcd = (x, y) => !y ? x : gcd(y, x % y);
- return arr.reduce((a,b) => gcd(a,b));
-}
+ return arr.reduce((a, b) => gcd(a, b));
+};
// arrayGcd([1,2,3,4,5]) -> 1
// arrayGcd([4,8,12]) -> 4
```
diff --git a/snippets/arrayLcm.md b/snippets/arrayLcm.md
index 8d4e593fb..42cb61906 100644
--- a/snippets/arrayLcm.md
+++ b/snippets/arrayLcm.md
@@ -5,11 +5,11 @@ Calculates the lowest common multiple (lcm) of an array of numbers.
Use `Array.reduce()` and the `lcm` formula (uses recursion) to calculate the lowest common multiple of an array of numbers.
```js
-const arrayLcm = arr =>{
+const arrayLcm = arr => {
const gcd = (x, y) => !y ? x : gcd(y, x % y);
- const lcm = (x, y) => (x*y)/gcd(x, y);
- return arr.reduce((a,b) => lcm(a,b));
-}
+ const lcm = (x, y) => (x * y) / gcd(x, y);
+ return arr.reduce((a, b) => lcm(a, b));
+};
// arrayLcm([1,2,3,4,5]) -> 60
// arrayLcm([4,8,12]) -> 24
```
diff --git a/snippets/arrayToHtmlList.md b/snippets/arrayToHtmlList.md
index bf5ba5721..6577ff663 100644
--- a/snippets/arrayToHtmlList.md
+++ b/snippets/arrayToHtmlList.md
@@ -5,6 +5,6 @@ Converts the given array elements into `
` tags and appends them to the list
Use `Array.map()` and `document.querySelector()` to create a list of html tags.
```js
-const arrayToHtmlList = (arr, listID) => arr.map(item => document.querySelector("#"+listID).innerHTML+=`${item}`);
+const arrayToHtmlList = (arr, listID) => arr.map(item => document.querySelector('#' + listID).innerHTML += `${item}`);
// arrayToHtmlList(['item 1', 'item 2'],'myListID')
```
diff --git a/snippets/call.md b/snippets/call.md
index a7aec4808..1cb0d4758 100644
--- a/snippets/call.md
+++ b/snippets/call.md
@@ -5,7 +5,7 @@ Given a key and a set of arguments, call them when given a context. Primarily us
Use a closure to call a stored key with stored arguments.
```js
-const call = ( key, ...args ) => context => context[ key ]( ...args );
+const call = (key, ...args) => context => context[ key ](...args);
/*
Promise.resolve( [ 1, 2, 3 ] ).then( call('map', x => 2 * x ) ).then( console.log ) //[ 2, 4, 6 ]
const map = call.bind(null, 'map')
diff --git a/snippets/capitalize.md b/snippets/capitalize.md
index d085a3034..9991e279e 100644
--- a/snippets/capitalize.md
+++ b/snippets/capitalize.md
@@ -6,7 +6,7 @@ Use destructuring and `toUpperCase()` to capitalize first letter, `...rest` to g
Omit the `lowerRest` parameter to keep the rest of the string intact, or set it to `true` to convert to lowercase.
```js
-const capitalize = ([first,...rest], lowerRest = false) =>
+const capitalize = ([first, ...rest], lowerRest = false) =>
first.toUpperCase() + (lowerRest ? rest.join('').toLowerCase() : rest.join(''));
// capitalize('myName') -> 'MyName'
// capitalize('myName', true) -> 'Myname'
diff --git a/snippets/clampNumber.md b/snippets/clampNumber.md
index d1bf9d64f..a71e4136e 100644
--- a/snippets/clampNumber.md
+++ b/snippets/clampNumber.md
@@ -8,9 +8,9 @@ Otherwise, return the nearest number in the range.
```js
const clampNumber = (num, lower, upper) => {
- if(lower > upper) upper = [lower, lower = upper][0];
- return (num>=lower && num<=upper) ? num : ((num < lower) ? lower : upper)
-}
+ if (lower > upper) upper = [lower, lower = upper][0];
+ return (num >= lower && num <= upper) ? num : ((num < lower) ? lower : upper);
+};
// clampNumber(2, 3, 5) -> 3
// clampNumber(1, -1, -5) -> -1
// clampNumber(3, 2, 4) -> 3
diff --git a/snippets/cleanObj.md b/snippets/cleanObj.md
index 82cfe4441..3ce8d2cdd 100644
--- a/snippets/cleanObj.md
+++ b/snippets/cleanObj.md
@@ -13,9 +13,9 @@ const cleanObj = (obj, keysToKeep = [], childIndicator) => {
} else if (!keysToKeep.includes(key)) {
delete obj[key];
}
- });
+ });
return obj;
-}
+};
/*
const testObj = {a: 1, b: 2, children: {a: 1, b: 2}}
cleanObj(testObj, ["a"],"children") // { a: 1, children : { a: 1}}
diff --git a/snippets/coalesce.md b/snippets/coalesce.md
index 22271dc68..1002df4d2 100644
--- a/snippets/coalesce.md
+++ b/snippets/coalesce.md
@@ -5,6 +5,6 @@ Returns the first non-null/undefined argument.
Use `Array.find()` to return the first non `null`/`undefined` argument.
```js
-const coalesce = (...args) => args.find(_ => ![undefined, null].includes(_))
+const coalesce = (...args) => args.find(_ => ![undefined, null].includes(_));
// coalesce(null,undefined,"",NaN, "Waldo") -> ""
```
diff --git a/snippets/collectInto.md b/snippets/collectInto.md
index c9a823d3d..69c036764 100644
--- a/snippets/collectInto.md
+++ b/snippets/collectInto.md
@@ -5,7 +5,7 @@ Changes a function that accepts an array into a variadic function.
Given a function, return a closure that collects all inputs into an array-accepting function.
```js
-const collectInto = fn => ( ...args ) => fn( args );
+const collectInto = fn => (...args) => fn(args);
/*
const Pall = collectInto( Promise.all.bind(Promise) )
let p1 = Promise.resolve(1)
diff --git a/snippets/detectDeviceType.md b/snippets/detectDeviceType.md
index b2822a458..291e148c5 100644
--- a/snippets/detectDeviceType.md
+++ b/snippets/detectDeviceType.md
@@ -5,7 +5,7 @@ Detects wether the website is being opened in a mobile device or a desktop/lapto
Use a regular expression to test the `navigator.userAgent` property to figure out if the device is a mobile device or a desktop/laptop.
```js
-const detectDeviceType = () => /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ? "Mobile" : "Desktop";
+const detectDeviceType = () => /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ? 'Mobile' : 'Desktop';
// detectDeviceType() -> "Mobile"
// detectDeviceType() -> "Desktop"
```
diff --git a/snippets/differenceWith.md b/snippets/differenceWith.md
index ba4aac0ec..02f686f4b 100644
--- a/snippets/differenceWith.md
+++ b/snippets/differenceWith.md
@@ -5,6 +5,6 @@ Filters out all values from an array for which the comparator function does not
Use `Array.filter()` and `Array.find()` to find the appropriate values.
```js
-const differenceWith = (arr, val, comp) => arr.filter(a => !val.find(b => comp(a, b)))
+const differenceWith = (arr, val, comp) => arr.filter(a => !val.find(b => comp(a, b)));
// differenceWith([1, 1.2, 1.5, 3], [1.9, 3], (a,b) => Math.round(a) == Math.round(b)) -> [1, 1.2]
```
diff --git a/snippets/digitize.md b/snippets/digitize.md
index f856c8369..6a48fafcb 100644
--- a/snippets/digitize.md
+++ b/snippets/digitize.md
@@ -6,6 +6,6 @@ Convert the number to a string, using spread operators in ES6(`[...string]`) bui
Use `Array.map()` and `parseInt()` to transform each value to an integer.
```js
-const digitize = n => [...''+n].map(i => parseInt(i));
+const digitize = n => [...'' + n].map(i => parseInt(i));
// digitize(2334) -> [2, 3, 3, 4]
```
diff --git a/snippets/dropRight.md b/snippets/dropRight.md
index a39613a14..3e6716f0e 100644
--- a/snippets/dropRight.md
+++ b/snippets/dropRight.md
@@ -6,7 +6,7 @@ Use `Array.slice()` to slice the remove the specified number of elements from th
```js
const dropRight = (arr, n = 1) => arr.slice(0, -n);
-//dropRight([1,2,3]) -> [1,2]
-//dropRight([1,2,3], 2) -> [1]
-//dropRight([1,2,3], 42) -> []
+// dropRight([1,2,3]) -> [1,2]
+// dropRight([1,2,3], 2) -> [1]
+// dropRight([1,2,3], 42) -> []
```
diff --git a/snippets/extendHex.md b/snippets/extendHex.md
index 8c7773c5e..a134ebd7b 100644
--- a/snippets/extendHex.md
+++ b/snippets/extendHex.md
@@ -6,7 +6,7 @@ Use `Array.map()`, `split()` and `Array.join()` to join the mapped array for con
`String.slice()` is used to remove `#` from string start since it's added once.
```js
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('');
// extendHex('#03f') -> '#0033ff'
// extendHex('05a') -> '#0055aa'
```
diff --git a/snippets/factorial.md b/snippets/factorial.md
index aaedd7520..e0afbd2c3 100644
--- a/snippets/factorial.md
+++ b/snippets/factorial.md
@@ -9,7 +9,7 @@ Throws an exception if `n` is a negative number.
```js
const factorial = n =>
- n < 0 ? (() => { throw new TypeError('Negative numbers are not allowed!') })()
+ n < 0 ? (() => { throw new TypeError('Negative numbers are not allowed!'); })()
: n <= 1 ? 1 : n * factorial(n - 1);
// factorial(6) -> 720
```
diff --git a/snippets/fibonacciCountUntilNum.md b/snippets/fibonacciCountUntilNum.md
index 12fffbfb6..8cf904ef0 100644
--- a/snippets/fibonacciCountUntilNum.md
+++ b/snippets/fibonacciCountUntilNum.md
@@ -6,6 +6,6 @@ Use a mathematical formula to calculate the number of fibonacci numbers until `n
```js
const fibonacciCountUntilNum = num =>
- Math.ceil(Math.log(num * Math.sqrt(5) + 1/2) / Math.log((Math.sqrt(5)+1)/2));
+ Math.ceil(Math.log(num * Math.sqrt(5) + 1 / 2) / Math.log((Math.sqrt(5) + 1) / 2));
// fibonacciCountUntilNum(10) -> 7
```
diff --git a/snippets/fibonacciUntilNum.md b/snippets/fibonacciUntilNum.md
index 55df575d0..5e1b2c9d7 100644
--- a/snippets/fibonacciUntilNum.md
+++ b/snippets/fibonacciUntilNum.md
@@ -8,8 +8,8 @@ Uses a mathematical formula to calculate the length of the array required.
```js
const fibonacciUntilNum = num => {
- let n = Math.ceil(Math.log(num * Math.sqrt(5) + 1/2) / Math.log((Math.sqrt(5)+1)/2));
+ let n = Math.ceil(Math.log(num * Math.sqrt(5) + 1 / 2) / Math.log((Math.sqrt(5) + 1) / 2));
return Array.from({ length: n}).reduce((acc, val, i) => acc.concat(i > 1 ? acc[i - 1] + acc[i - 2] : i), []);
-}
+};
// fibonacciUntilNum(15) -> [0,1,1,2,3,5,8,13]
```
diff --git a/snippets/flatten.md b/snippets/flatten.md
index f070f2cae..0efd29071 100644
--- a/snippets/flatten.md
+++ b/snippets/flatten.md
@@ -5,6 +5,6 @@ Flattens an array.
Use a new array and concatenate it with the spread input array causing a shallow denesting of any contained arrays.
```js
-const flatten = arr => [ ].concat( ...arr );
+const flatten = arr => [ ].concat(...arr);
// flatten([1,[2],3,4]) -> [1,2,3,4]
```
diff --git a/snippets/flip.md b/snippets/flip.md
index 502cef288..004d838d2 100644
--- a/snippets/flip.md
+++ b/snippets/flip.md
@@ -5,7 +5,7 @@ Flip takes a function as an argument, then makes the first argument the last
Return a closure that takes variadic inputs, and splices the last argument to make it the first argument before applying the rest.
```js
-const flip = fn => (...args) => fn(args.pop(), ...args)
+const flip = fn => (...args) => fn(args.pop(), ...args);
/*
let a = {name: 'John Smith'}
let b = {}
diff --git a/snippets/hexToRGB.md b/snippets/hexToRGB.md
index 66c95fd3a..c86004039 100644
--- a/snippets/hexToRGB.md
+++ b/snippets/hexToRGB.md
@@ -10,14 +10,13 @@ const hexToRGB = hex => {
if (h.length === 3) h = [...h].map(x => x + x).join('');
else if (h.length === 8) alpha = true;
h = parseInt(h, 16);
- return 'rgb' + (alpha ? 'a' : '') + '('
- + (h >>> (alpha ? 24 : 16)) + ', '
- + ((h & (alpha ? 0x00ff0000 : 0x00ff00)) >>> (alpha ? 16 : 8)) + ', '
- + ((h & (alpha ? 0x0000ff00 : 0x0000ff)) >>> (alpha ? 8 : 0))
- + (alpha ? `, ${(h & 0x000000ff)}` : '') + ')';
+ return 'rgb' + (alpha ? 'a' : '') + '(' +
+ (h >>> (alpha ? 24 : 16)) + ', ' +
+ ((h & (alpha ? 0x00ff0000 : 0x00ff00)) >>> (alpha ? 16 : 8)) + ', ' +
+ ((h & (alpha ? 0x0000ff00 : 0x0000ff)) >>> (alpha ? 8 : 0)) +
+ (alpha ? `, ${(h & 0x000000ff)}` : '') + ')';
};
// hexToRGB('#27ae60ff') -> 'rgba(39, 174, 96, 255)'
// hexToRGB('27ae60') -> 'rgb(39, 174, 96)'
// hexToRGB('#fff') -> 'rgb(255, 255, 255)'
-
```
diff --git a/snippets/httpsRedirect.md b/snippets/httpsRedirect.md
index b1b851320..7cf087584 100644
--- a/snippets/httpsRedirect.md
+++ b/snippets/httpsRedirect.md
@@ -6,6 +6,6 @@ Use `location.protocol` to get the protocol currently being used. If it's not HT
```js
const httpsRedirect = () => {
- if(location.protocol !== "https:") location.replace("https://" + location.href.split("//")[1]);
-}
+ if (location.protocol !== 'https:') location.replace('https://' + location.href.split('//')[1]);
+};
```
diff --git a/snippets/inRange.md b/snippets/inRange.md
index 5089393dc..ab4a610e7 100644
--- a/snippets/inRange.md
+++ b/snippets/inRange.md
@@ -6,10 +6,10 @@ Use arithmetic comparison to check if the given number is in the specified range
If the second parameter, `end`, is not specified, the range is considered to be from `0` to `start`.
```js
-const inRange = (n, start, end=null) => {
- if(end && start > end) end = [start, start=end][0];
- return (end == null) ? (n>=0 && n=start && n {
+ if (end && start > end) end = [start, start = end][0];
+ return (end == null) ? (n >= 0 && n < start) : (n >= start && n < end);
+};
// inRange(3, 2, 5) -> true
// inRange(3, 4) -> true
// inRange(2, 3, 5) -> false
diff --git a/snippets/initializeArrayWithRange.md b/snippets/initializeArrayWithRange.md
index c3ef5a0a0..3fefca2ed 100644
--- a/snippets/initializeArrayWithRange.md
+++ b/snippets/initializeArrayWithRange.md
@@ -6,7 +6,7 @@ Use `Array((end + 1) - start)` to create an array of the desired length, `Array.
You can omit `start` to use a default value of `0`.
```js
-const initializeArrayWithRange = (end, start = 0) =>
+const initializeArrayWithRange = (end, start = 0) =>
Array.from({ length: (end + 1) - start }).map((v, i) => i + start);
// initializeArrayWithRange(5) -> [0,1,2,3,4,5]
// initializeArrayWithRange(7, 3) -> [3,4,5,6,7]
diff --git a/snippets/isArmstrongNumber.md b/snippets/isArmstrongNumber.md
index 139de9d72..a680d607e 100644
--- a/snippets/isArmstrongNumber.md
+++ b/snippets/isArmstrongNumber.md
@@ -5,8 +5,8 @@ Checks if the given number is an Armstrong number or not.
Convert the given number into an array of digits. Use `Math.pow()` to get the appropriate power for each digit and sum them up. If the sum is equal to the number itself, return `true` otherwise `false`.
```js
-const isArmstrongNumber = digits =>
- ( arr => arr.reduce( ( a, d ) => a + Math.pow( parseInt( d ), arr.length ), 0 ) == digits ? true : false )( ( digits+'' ).split( '' ) );
+const isArmstrongNumber = digits =>
+ (arr => arr.reduce((a, d) => a + Math.pow(parseInt(d), arr.length), 0) == digits)((digits + '').split(''));
// isArmstrongNumber(1634) -> true
// isArmstrongNumber(371) -> true
// isArmstrongNumber(56) -> false
diff --git a/snippets/lcm.md b/snippets/lcm.md
index 73b9c43c8..ef8ea7fdc 100644
--- a/snippets/lcm.md
+++ b/snippets/lcm.md
@@ -6,9 +6,9 @@ Use the greatest common divisor (GCD) formula and `Math.abs()` to determine the
The GCD formula uses recursion.
```js
-const lcm = (x,y) => {
+const lcm = (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));
};
// lcm(12,7) -> 84
```
diff --git a/snippets/mapObject.md b/snippets/mapObject.md
index eb5ea736f..f9d65ee32 100644
--- a/snippets/mapObject.md
+++ b/snippets/mapObject.md
@@ -5,8 +5,8 @@ Maps the values of an array to an object using a function, where the key-value p
Use an anonymous inner function scope to declare an undefined memory space, using closures to store a return value. Use a new `Array` to store the array with a map of the function over its data set and a comma operator to return a second step, without needing to move from one context to another (due to closures and order of operations).
```js
-const mapObject = (arr, fn) =>
- (a => (a = [arr, arr.map(fn)], a[0].reduce( (acc,val,ind) => (acc[val] = a[1][ind], acc), {}) )) ( );
+const mapObject = (arr, fn) =>
+ (a => (a = [arr, arr.map(fn)], a[0].reduce((acc, val, ind) => (acc[val] = a[1][ind], acc), {})))();
/*
const squareIt = arr => mapObject(arr, a => a*a)
squareIt([1,2,3]) // { 1: 1, 2: 4, 3: 9 }
diff --git a/snippets/nthElement.md b/snippets/nthElement.md
index ae472eb38..be1da2ce0 100644
--- a/snippets/nthElement.md
+++ b/snippets/nthElement.md
@@ -7,7 +7,7 @@ If the index is out of bounds, return `[]`.
Omit the second argument, `n`, to get the first element of the array.
```js
-const nthElement = (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];
// nthElement(['a','b','c'],1) -> 'b'
// nthElement(['a','b','b'],-3) -> 'a'
```
diff --git a/snippets/primes.md b/snippets/primes.md
index 81e8f2999..109192e7c 100644
--- a/snippets/primes.md
+++ b/snippets/primes.md
@@ -6,11 +6,11 @@ Generate an array from `2` to the given number. Use `Array.filter()` to filter o
```js
const primes = num => {
- let arr = Array.from({length:num-1}).map((x,i)=> i+2),
- sqroot = Math.floor(Math.sqrt(num)),
- numsTillSqroot = Array.from({length:sqroot-1}).map((x,i)=> i+2);
- numsTillSqroot.forEach(x => arr = arr.filter(y => ((y%x)!==0)||(y==x)));
- return arr;
-}
-// primes(10) -> [2,3,5,7]
+ let arr = Array.from({length: num - 1}).map((x, i) => i + 2),
+ sqroot = Math.floor(Math.sqrt(num)),
+ numsTillSqroot = Array.from({length: sqroot - 1}).map((x, i) => i + 2);
+ numsTillSqroot.forEach(x => arr = arr.filter(y => ((y % x) !== 0) || (y == x)));
+ return arr;
+};
+// primes(10) -> [2,3,5,7]
```
diff --git a/snippets/pull.md b/snippets/pull.md
index d7d0412c0..3848e27dd 100644
--- a/snippets/pull.md
+++ b/snippets/pull.md
@@ -11,7 +11,7 @@ _(For a snippet that does not mutate the original array see [`without`](#without
const pull = (arr, ...args) => {
let argState = Array.isArray(args[0]) ? args[0] : args;
let pulled = arr.filter((v, i) => !argState.includes(v));
- arr.length = 0;
+ arr.length = 0;
pulled.forEach(v => arr.push(v));
};
diff --git a/snippets/pullAtIndex.md b/snippets/pullAtIndex.md
index 260d7b634..e848cc7c7 100644
--- a/snippets/pullAtIndex.md
+++ b/snippets/pullAtIndex.md
@@ -10,11 +10,11 @@ Use `Array.push()` to keep track of pulled values
const pullAtIndex = (arr, pullArr) => {
let removed = [];
let pulled = arr.map((v, i) => pullArr.includes(i) ? removed.push(v) : v)
- .filter((v, i) => !pullArr.includes(i))
- arr.length = 0;
+ .filter((v, i) => !pullArr.includes(i));
+ arr.length = 0;
pulled.forEach(v => arr.push(v));
return removed;
-}
+};
// let myArray = ['a', 'b', 'c', 'd'];
// let pulled = pullAtIndex(myArray, [1, 3]);
diff --git a/snippets/pullAtValue.md b/snippets/pullAtValue.md
index 52e1eac21..c092933e4 100644
--- a/snippets/pullAtValue.md
+++ b/snippets/pullAtValue.md
@@ -8,13 +8,13 @@ Use `Array.push()` to keep track of pulled values
```js
const pullAtValue = (arr, pullArr) => {
- let removed = [],
+ let removed = [],
pushToRemove = arr.forEach((v, i) => pullArr.includes(v) ? removed.push(v) : v),
mutateTo = arr.filter((v, i) => !pullArr.includes(v));
arr.length = 0;
mutateTo.forEach(v => arr.push(v));
return removed;
-}
+};
/*
let myArray = ['a', 'b', 'c', 'd'];
let pulled = pullAtValue(myArray, ['b', 'd']);
diff --git a/snippets/randomHexColor.md b/snippets/randomHexColor.md
index 846239670..f7cdbc26e 100644
--- a/snippets/randomHexColor.md
+++ b/snippets/randomHexColor.md
@@ -6,10 +6,10 @@ Use `Math.random` to generate a random 24-bit(6x4bits) hexadecimal number. Use b
```js
const randomHexColor = () => {
- let n = (Math.random()*0xfffff|0).toString(16);
- return '#' + (n.length !== 6
- ? (Math.random()*0xf|0).toString(16) + n : n);
-}
+ let n = (Math.random() * 0xfffff | 0).toString(16);
+ return '#' + (n.length !== 6
+ ? (Math.random() * 0xf | 0).toString(16) + n : n);
+};
// randomHexColorCode() -> "#e34155"
// randomHexColorCode() -> "#fd73a6"
// randomHexColorCode() -> "#4144c6"
diff --git a/snippets/remove.md b/snippets/remove.md
index 34b10aa24..25606c21b 100644
--- a/snippets/remove.md
+++ b/snippets/remove.md
@@ -9,7 +9,7 @@ The `func` is invoked with three arguments (`value, index, array`).
const remove = (arr, func) =>
Array.isArray(arr) ? arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1); return acc.concat(val);
- }, [])
+ }, [])
: [];
// remove([1, 2, 3, 4], n => n % 2 == 0) -> [2, 4]
```
diff --git a/snippets/repeatString.md b/snippets/repeatString.md
index 888965713..c7478acb2 100644
--- a/snippets/repeatString.md
+++ b/snippets/repeatString.md
@@ -5,9 +5,9 @@ Repeats a string n times using `String.repeat()`
If no string is provided the default is `""` and the default number of times is 2.
```js
-const repeatString = (str="",num=2) => {
- return num >= 0 ? str.repeat(num) : str;
-}
+const repeatString = (str = '', num = 2) => {
+ return num >= 0 ? str.repeat(num) : str;
+};
// repeatString("abc",3) -> 'abcabcabc'
// repeatString("abc") -> 'abcabc'
```
diff --git a/snippets/round.md b/snippets/round.md
index 7675c734f..81e90dfe0 100644
--- a/snippets/round.md
+++ b/snippets/round.md
@@ -6,6 +6,6 @@ Use `Math.round()` and template literals to round the number to the specified nu
Omit the second argument, `decimals` to round to an integer.
```js
-const round = (n, decimals=0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
+const round = (n, decimals = 0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
// round(1.005, 2) -> 1.01
```
diff --git a/snippets/symmetricDifference.md b/snippets/symmetricDifference.md
index a25bb52ef..596adf28a 100644
--- a/snippets/symmetricDifference.md
+++ b/snippets/symmetricDifference.md
@@ -8,6 +8,6 @@ Create a `Set` from each array, then use `Array.filter()` on each of them to onl
const symmetricDifference = (a, b) => {
const sA = new Set(a), sB = new Set(b);
return [...a.filter(x => !sB.has(x)), ...b.filter(x => !sA.has(x))];
-}
+};
// symmetricDifference([1,2,3], [1,2,4]) -> [3,4]
```
diff --git a/snippets/timeTaken.md b/snippets/timeTaken.md
index 2c7bc181f..05b16fb46 100644
--- a/snippets/timeTaken.md
+++ b/snippets/timeTaken.md
@@ -6,8 +6,8 @@ Use `console.time()` and `console.timeEnd()` to measure the difference between t
```js
const timeTaken = callback => {
- console.time('timeTaken'); const r = callback();
- console.timeEnd('timeTaken'); return r;
+ console.time('timeTaken'); const r = callback();
+ console.timeEnd('timeTaken'); return r;
};
// timeTaken(() => Math.pow(2, 10)) -> 1024
// (logged): timeTaken: 0.02099609375ms
diff --git a/snippets/toCamelCase.md b/snippets/toCamelCase.md
index 5100441af..c3c78e8e9 100644
--- a/snippets/toCamelCase.md
+++ b/snippets/toCamelCase.md
@@ -8,10 +8,10 @@ For more detailed explanation of this Regex, [visit this Site](https://regex101.
```js
const toCamelCase = str => {
let s = str && str.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
- .map(x => x.slice(0,1).toUpperCase() + x.slice(1).toLowerCase())
+ .map(x => x.slice(0, 1).toUpperCase() + x.slice(1).toLowerCase())
.join('');
- return s.slice(0,1).toLowerCase() + s.slice(1)
- }
+ return s.slice(0, 1).toLowerCase() + s.slice(1);
+};
// toCamelCase("some_database_field_name") -> 'someDatabaseFieldName'
// toCamelCase("Some label that needs to be camelized") -> 'someLabelThatNeedsToBeCamelized'
// toCamelCase("some-javascript-property") -> 'someJavascriptProperty'
diff --git a/snippets/toDecimalMark.md b/snippets/toDecimalMark.md
index 94e821376..b05429817 100644
--- a/snippets/toDecimalMark.md
+++ b/snippets/toDecimalMark.md
@@ -3,6 +3,6 @@
Use `toLocaleString()` to convert a float-point arithmetic to the [Decimal mark](https://en.wikipedia.org/wiki/Decimal_mark) form. It makes a comma separated string from a number.
```js
-const toDecimalMark = num => num.toLocaleString("en-US");
+const toDecimalMark = num => num.toLocaleString('en-US');
// toDecimalMark(12305030388.9087) -> "12,305,030,388.9087"
```
diff --git a/snippets/toEnglishDate.md b/snippets/toEnglishDate.md
index 329eea38b..ffbcf6cd7 100644
--- a/snippets/toEnglishDate.md
+++ b/snippets/toEnglishDate.md
@@ -6,7 +6,6 @@ Use `Date.toISOString()`, `split('T')` and `replace()` to convert a date from Am
Throws an error if the passed time cannot be converted to a date.
```js
-const toEnglishDate = (time) =>
- {try{return new Date(time).toISOString().split('T')[0].replace(/-/g, '/')}catch(e){return}};
+const toEnglishDate = (time) => { try { return new Date(time).toISOString().split('T')[0].replace(/-/g, '/'); } catch (e) {} };
// toEnglishDate('09/21/2010') -> '21/09/2010'
```
diff --git a/snippets/toSnakeCase.md b/snippets/toSnakeCase.md
index fc9ae543a..b4022f98d 100644
--- a/snippets/toSnakeCase.md
+++ b/snippets/toSnakeCase.md
@@ -6,11 +6,11 @@ Break the string into words and combine them using `_` as a separator.
For more detailed explanation of this Regex, [visit this Site](https://regex101.com/r/bMCgAB/1).
```js
-const toSnakeCase = str =>{
+const toSnakeCase = str => {
str && str.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.toLowerCase())
.join('_');
-}
+};
// toSnakeCase("camelCase") -> 'camel_case'
// toSnakeCase("some text") -> 'some_text'
// toSnakeCase("some-javascript-property") -> 'some_javascript_property'
diff --git a/snippets/zip.md b/snippets/zip.md
index c9a720e8e..981143fd5 100644
--- a/snippets/zip.md
+++ b/snippets/zip.md
@@ -10,9 +10,9 @@ If lengths of the argument-arrays vary, `undefined` is used where no value could
const zip = (...arrays) => {
const maxLength = Math.max(...arrays.map(x => x.length));
return Array.from({length: maxLength}).map((_, i) => {
- return Array.from({length: arrays.length}, (_, k) => arrays[k][i]);
- })
-}
-//zip(['a', 'b'], [1, 2], [true, false]); -> [['a', 1, true], ['b', 2, false]]
-//zip(['a'], [1, 2], [true, false]); -> [['a', 1, true], [undefined, 2, false]]
+ return Array.from({length: arrays.length}, (_, k) => arrays[k][i]);
+ });
+};
+// zip(['a', 'b'], [1, 2], [true, false]); -> [['a', 1, true], ['b', 2, false]]
+// zip(['a'], [1, 2], [true, false]); -> [['a', 1, true], [undefined, 2, false]]
```
diff --git a/snippets/zipObject.md b/snippets/zipObject.md
index f9214e7aa..be9172542 100644
--- a/snippets/zipObject.md
+++ b/snippets/zipObject.md
@@ -5,7 +5,7 @@ Given an array of valid property identifiers and an array of values, return an o
Since an object can have undefined values but not undefined property pointers, the array of properties is used to decide the structure of the resulting object using `Array.reduce()`.
```js
-const zipObject = ( props, values ) => props.reduce( ( obj, prop, index ) => ( obj[prop] = values[index], obj ), {} )
+const zipObject = (props, values) => props.reduce((obj, prop, index) => (obj[prop] = values[index], obj), {});
// zipObject(['a','b','c'], [1,2]) -> {a: 1, b: 2, c: undefined}
// zipObject(['a','b'], [1,2,3]) -> {a: 1, b: 2}
```