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30secondsofcode
2020-01-30 19:37:05 +00:00
parent 13eda7be52
commit 0a709f6e99
9 changed files with 72 additions and 75 deletions
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10
snippet_data/snippetList.json
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44
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"codeBlocks": { "codeBlocks": {
"es6": "const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Promise.resolve(arg));", "es6": "const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Promise.resolve(arg));",
"es5": "var pipeAsyncFunctions = function pipeAsyncFunctions() {\n for (var _len = arguments.length, fns = new Array(_len), _key = 0; _key < _len; _key++) {\n fns[_key] = arguments[_key];\n }\n\n return function (arg) {\n return fns.reduce(function (p, f) {\n return p.then(f);\n }, Promise.resolve(arg));\n };\n};", "es5": "var pipeAsyncFunctions = function pipeAsyncFunctions() {\n for (var _len = arguments.length, fns = new Array(_len), _key = 0; _key < _len; _key++) {\n fns[_key] = arguments[_key];\n }\n\n return function (arg) {\n return fns.reduce(function (p, f) {\n return p.then(f);\n }, Promise.resolve(arg));\n };\n};",
"example": "const sum = pipeAsyncFunctions(\n x => x + 1,\n x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),\n x => x + 3,\n async x => (await x) + 4\n);\n(async() => {\n console.log(await sum(5)); // 15 (after one second)\n})();" "example": "const sum = pipeAsyncFunctions(\n x => x + 1,\n x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),\n x => x + 3,\n async x => (await x) + 4\n);\n(async () => {\n console.log(await sum(5)); // 15 (after one second)\n})();"
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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. Omit the third argument, `end`, to use the same value as `separator` by default.
```js ```js
const join = (arr, separator = ',', end = separator) => const join = (arr, separator = ',', end = separator) =>
arr.reduce( arr.reduce(
(acc, val, i) => (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. Return the `queryString` or an empty string when the `queryParameters` are falsy.
```js ```js
const objectToQueryString = queryParameters => { const objectToQueryString = queryParameters => {
return queryParameters return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => { ? 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 ```js
const sum = pipeAsyncFunctions( const sum = pipeAsyncFunctions(
x => x + 1, x => x + 1,
x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)), x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),
x => x + 3, x => x + 3,
async x => (await x) + 4 async x => (await x) + 4
); );
(async() => { (async () => {
console.log(await sum(5)); // 15 (after one second) 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`). The `func` is invoked with three arguments (`value, index, array`).
```js ```js
const remove = (arr, func) => const remove = (arr, func) =>
Array.isArray(arr) Array.isArray(arr)
? arr.filter(func).reduce((acc, val) => { ? 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. Split strings into array of characters with `split('')` and return its length.
```js ```js
const size = val => const size = val =>
Array.isArray(val) Array.isArray(val)
? val.length ? val.length