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30secondsofcode
2020-04-16 12:14:30 +00:00
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commit adbf8cfe1f
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24
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"text": "Converts Fahrenheit to Celsius.\n\nFollows the conversion formula `C = (F - 32) * 5/9`.\n\n",
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"es6": "const fahrenheitToCelsius = degrees => (degrees - 32) * 5 / 9;",
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"es5": "var fahrenheitToCelsius = function fahrenheitToCelsius(degrees) {\n return (degrees - 32) * 5 / 9;\n};",
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3
snippets/fahrenheitToCelsius.md
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@ -8,8 +8,7 @@ Converts Fahrenheit to Celsius.
Follows the conversion formula `C = (F - 32) * 5/9`.
```js
const fahrenheitToCelsius = degrees => (degrees - 32) * 5 / 9;
const fahrenheitToCelsius = degrees => ((degrees - 32) * 5) / 9;
```
```js

1
snippets/getMeridiemSuffixOfInteger.md
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@ -8,7 +8,6 @@ Converts an integer to a suffixed string, adding `am` or `pm` based on its value
Use the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.
```js
const getMeridiemSuffixOfInteger = num =>
num === 0 || num === 24
? 12 + 'am'

2
snippets/httpPut.md
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@ -12,7 +12,6 @@ Handle the `onerror` event, by running the provided `err` function.
Omit the last argument, `err` to log the request to the console's error stream by default.
```js
const httpPut = (url, data, callback, err = console.error) => {
const request = new XMLHttpRequest();
request.open('PUT', url, true);
@ -24,7 +23,6 @@ const httpPut = (url, data, callback, err = console.error) => {
```
```js
const password = 'fooBaz';
const data = JSON.stringify({
id: 1,

1
snippets/join.md
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@ -11,7 +11,6 @@ Omit the second argument, `separator`, to use a default separator of `','`.
Omit the third argument, `end`, to use the same value as `separator` by default.
```js
const join = (arr, separator = ',', end = separator) =>
arr.reduce(
(acc, val, i) =>

1
snippets/objectToQueryString.md
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@ -10,7 +10,6 @@ Determine the `symbol` to be either `?` or `&` based on the `length` of `querySt
Return the `queryString` or an empty string when the `queryParameters` are falsy.
```js
const objectToQueryString = queryParameters => {
return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {

3
snippets/pipeAsyncFunctions.md
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@ -14,14 +14,13 @@ const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Pr
```
```js
const sum = pipeAsyncFunctions(
x => x + 1,
x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),
x => x + 3,
async x => (await x) + 4
);
(async() => {
(async () => {
console.log(await sum(5)); // 15 (after one second)
})();
```

1
snippets/remove.md
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@ -9,6 +9,7 @@ Use `Array.prototype.filter()` to find array elements that return truthy values
The `func` is invoked with three arguments (`value, index, array`).
```js
const remove = (arr, func) =>
Array.isArray(arr)
? arr.filter(func).reduce((acc, val) => {

1
snippets/size.md
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@ -12,7 +12,6 @@ Use `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API
Split strings into array of characters with `split('')` and return its length.
```js
const size = val =>
Array.isArray(val)
? val.length