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30secondsofcode
2019-11-04 07:17:49 +00:00
parent e76a83f138
commit e5522dcf4c
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29
README.md
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@ -121,6 +121,7 @@ _30s.average(1, 2, 3);
* [`forEachRight`](#foreachright)
* [`groupBy`](#groupby)
* [`head`](#head)
* [`includesAny`](#includesany)
* [`indexOfAll`](#indexofall)
* [`initial`](#initial)
* [`initialize2DArray`](#initialize2darray)
@ -1450,6 +1451,27 @@ head([1, 2, 3]); // 1
<br>[⬆ Back to top](#contents)
### includesAny
Returns `true` if at least one element of values is included in arr , `false` otherwise.
Use `Array.prototype.some()` and `Array.prototype.includes()` to check if at least one element of `values` is included in `arr`.
```js
const includesAny = (arr, values) => values.some(v => arr.includes(v));
```
<details>
<summary>Examples</summary>
```js
includesAny([1, 2, 3, 4], [2, 9]); // true
includesAny([1, 2, 3, 4], [8, 9]); // false
```
</details>
<br>[⬆ Back to top](#contents)
### indexOfAll
Returns all indices of `val` in an array.
@ -7128,11 +7150,14 @@ Return `false` beforehand if given key list is empty.
```js
const hasKey = (obj, keys) => {
return (keys.length > 0) && keys.every(key => {
return (
keys.length > 0 &&
keys.every(key => {
if (typeof obj !== 'object' || !obj.hasOwnProperty(key)) return false;
obj = obj[key];
return true;
});
})
);
};
```

35
snippet_data/snippetList.json
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"tags": [
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"beginner"
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@ -2835,7 +2850,7 @@
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43
snippet_data/snippets.json
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@ -2552,7 +2552,7 @@
"fileName": "hasKey.md",
"text": "Returns `true` if the target value exists in a JSON object, `false` otherwise.\n\nCheck if `keys` is non-empty and use `Array.prototype.every()` to sequentially check its keys to internal depth of the object, `obj`. \nUse `Object.prototype.hasOwnProperty()` to check if `obj` does not have the current key or is not an object, stop propagation and return `false`.\nOtherwise assign the key's value to `obj` to use on the next iteration.\n\nReturn `false` beforehand if given key list is empty.\n\n",
"codeBlocks": {
"es6": "const hasKey = (obj, keys) => {\n return (keys.length > 0) && keys.every(key => {\n if (typeof obj !== 'object' || !obj.hasOwnProperty(key)) return false;\n obj = obj[key];\n return true;\n });\n};",
"es6": "const hasKey = (obj, keys) => {\n return (\n keys.length > 0 &&\n keys.every(key => {\n if (typeof obj !== 'object' || !obj.hasOwnProperty(key)) return false;\n obj = obj[key];\n return true;\n })\n );\n};",
"es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar hasKey = function hasKey(obj, keys) {\n return keys.length > 0 && keys.every(function (key) {\n if (_typeof(obj) !== 'object' || !obj.hasOwnProperty(key)) return false;\n obj = obj[key];\n return true;\n });\n};",
"example": "let obj = {\n a: 1,\n b: { c: 4 },\n 'b.d': 5\n};\nhasKey(obj, ['a']); // true\nhasKey(obj, ['b']); // true\nhasKey(obj, ['b', 'c']); // true\nhasKey(obj, ['b.d']); // true\nhasKey(obj, ['d']); // false\nhasKey(obj, ['c']); // false\nhasKey(obj, ['b', 'f']); // false"
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@ -2562,7 +2562,7 @@
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"example": "includesAny([1, 2, 3, 4], [2, 9]); // true\nincludesAny([1, 2, 3, 4], [8, 9]); // false"
},
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"beginner"
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1
snippets/checkProp.md
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@ -35,6 +35,7 @@ const checkProp = (predicate, prop) => obj => !!predicate(obj[prop]);
const lengthIs4 = checkProp(l => l === 4, 'length');

1
snippets/deepClone.md
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@ -11,7 +11,6 @@ Use `Object.assign()` and an empty object (`{}`) to create a shallow clone of th
Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.
```js
const deepClone = obj => {
if (obj === null) return null;
let clone = Object.assign({}, obj);

1
snippets/deepMapKeys.md
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@ -10,7 +10,6 @@ Use `Object.keys(obj)` to iterate over the object's keys.
Use `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.
```js
const deepMapKeys = (obj, f) =>
Array.isArray(obj)
? obj.map(val => deepMapKeys(val, f))

1
snippets/dig.md
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@ -9,7 +9,6 @@ Use the `in` operator to check if `target` exists in `obj`.
If found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.
```js
const dig = (obj, target) =>
target in obj
? obj[target]

1
snippets/factorial.md
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@ -11,7 +11,6 @@ Otherwise, return the product of `n` and the factorial of `n - 1`.
Throws an exception if `n` is a negative number.
```js
const factorial = n =>
n < 0
? (() => {

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'

8
snippets/hasKey.md
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@ -12,13 +12,15 @@ Otherwise assign the key's value to `obj` to use on the next iteration.
Return `false` beforehand if given key list is empty.
```js
const hasKey = (obj, keys) => {
return (keys.length > 0) && keys.every(key => {
return (
keys.length > 0 &&
keys.every(key => {
if (typeof obj !== 'object' || !obj.hasOwnProperty(key)) return false;
obj = obj[key];
return true;
});
})
);
};
```

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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@ -10,6 +10,7 @@ Determine the `symbol` to be either `?` or `&` based on the `index` and concaten
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) => {

1
snippets/pipeAsyncFunctions.md
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@ -14,6 +14,7 @@ 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)),

10
test/_30s.js
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@ -467,11 +467,14 @@ const hashNode = val =>
)
);
const hasKey = (obj, keys) => {
return (keys.length > 0) && keys.every(key => {
return (
keys.length > 0 &&
keys.every(key => {
if (typeof obj !== 'object' || !obj.hasOwnProperty(key)) return false;
obj = obj[key];
return true;
});
})
);
};
const head = arr => arr[0];
const hexToRGB = hex => {
@ -517,6 +520,7 @@ const hz = (fn, iterations = 100) => {
for (let i = 0; i < iterations; i++) fn();
return (1000 * iterations) / (performance.now() - before);
};
const includesAny = (arr, values) => values.some(v => arr.includes(v));
const indentString = (str, count, indent = ' ') => str.replace(/^/gm, indent.repeat(count));
const indexOfAll = (arr, val) => arr.reduce((acc, el, i) => (el === val ? [...acc, i] : acc), []);
const initial = arr => arr.slice(0, -1);
@ -1561,4 +1565,4 @@ const speechSynthesis = message => {
const squareSum = (...args) => args.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0);
module.exports = {all,allEqual,any,approximatelyEqual,arrayToCSV,arrayToHtmlList,ary,atob,attempt,average,averageBy,bifurcate,bifurcateBy,bind,bindAll,bindKey,binomialCoefficient,bottomVisible,btoa,byteSize,call,capitalize,capitalizeEveryWord,castArray,chainAsync,checkProp,chunk,clampNumber,cloneRegExp,coalesce,coalesceFactory,collectInto,colorize,compact,compactWhitespace,compose,composeRight,converge,copyToClipboard,countBy,counter,countOccurrences,createDirIfNotExists,createElement,createEventHub,CSVToArray,CSVToJSON,currentURL,curry,dayOfYear,debounce,decapitalize,deepClone,deepFlatten,deepFreeze,deepGet,deepMapKeys,defaults,defer,degreesToRads,delay,detectDeviceType,difference,differenceBy,differenceWith,dig,digitize,distance,drop,dropRight,dropRightWhile,dropWhile,elementContains,elementIsVisibleInViewport,elo,equals,escapeHTML,escapeRegExp,everyNth,extendHex,factorial,fibonacci,filterFalsy,filterNonUnique,filterNonUniqueBy,findKey,findLast,findLastIndex,findLastKey,flatten,flattenObject,flip,forEachRight,formatDuration,formToObject,forOwn,forOwnRight,fromCamelCase,functionName,functions,gcd,geometricProgression,get,getColonTimeFromDate,getDaysDiffBetweenDates,getImages,getMeridiemSuffixOfInteger,getScrollPosition,getStyle,getType,getURLParameters,groupBy,hammingDistance,hasClass,hasFlags,hashBrowser,hashNode,hasKey,head,hexToRGB,hide,httpGet,httpPost,httpsRedirect,hz,indentString,indexOfAll,initial,initialize2DArray,initializeArrayWithRange,initializeArrayWithRangeRight,initializeArrayWithValues,initializeNDArray,inRange,insertAfter,insertBefore,intersection,intersectionBy,intersectionWith,invertKeyValues,is,isAbsoluteURL,isAfterDate,isAnagram,isArrayLike,isBeforeDate,isBoolean,isBrowser,isBrowserTabFocused,isDivisible,isDuplexStream,isEmpty,isEven,isFunction,isLowerCase,isNegativeZero,isNil,isNull,isNumber,isObject,isObjectLike,isOdd,isPlainObject,isPrime,isPrimitive,isPromiseLike,isReadableStream,isSameDate,isSorted,isStream,isString,isSymbol,isTravisCI,isUndefined,isUpperCase,isValidJSON,isWeekday,isWeekend,isWritableStream,join,JSONtoCSV,JSONToFile,last,lcm,longestItem,lowercaseKeys,luhnCheck,mapKeys,mapNumRange,mapObject,mapString,mapValues,mask,matches,matchesWith,maxBy,maxDate,maxN,median,memoize,merge,midpoint,minBy,minDate,minN,mostPerformant,negate,nest,nodeListToArray,none,nthArg,nthElement,objectFromPairs,objectToPairs,objectToQueryString,observeMutations,off,offset,omit,omitBy,on,once,onUserInputChange,orderBy,over,overArgs,pad,palindrome,parseCookie,partial,partialRight,partition,percentile,permutations,pick,pickBy,pipeAsyncFunctions,pipeFunctions,pluralize,powerset,prefix,prettyBytes,primes,promisify,pull,pullAtIndex,pullAtValue,pullBy,radsToDegrees,randomHexColorCode,randomIntArrayInRange,randomIntegerInRange,randomNumberInRange,readFileLines,rearg,recordAnimationFrames,redirect,reducedFilter,reduceSuccessive,reduceWhich,reject,remove,removeNonASCII,renameKeys,reverseString,RGBToHex,round,runAsync,runPromisesInSeries,sample,sampleSize,scrollToTop,sdbm,serializeCookie,serializeForm,setStyle,shallowClone,shank,show,shuffle,similarity,size,sleep,smoothScroll,sortCharactersInString,sortedIndex,sortedIndexBy,sortedLastIndex,sortedLastIndexBy,splitLines,spreadOver,stableSort,standardDeviation,stringPermutations,stripHTMLTags,sum,sumBy,sumPower,symmetricDifference,symmetricDifferenceBy,symmetricDifferenceWith,tail,take,takeRight,takeRightWhile,takeWhile,throttle,times,timeTaken,toCamelCase,toCurrency,toDecimalMark,toggleClass,toHash,toKebabCase,tomorrow,toOrdinalSuffix,toSafeInteger,toSnakeCase,toTitleCase,transform,triggerEvent,truncateString,truthCheckCollection,unary,uncurry,unescapeHTML,unflattenObject,unfold,union,unionBy,unionWith,uniqueElements,uniqueElementsBy,uniqueElementsByRight,uniqueSymmetricDifference,untildify,unzip,unzipWith,URLJoin,UUIDGeneratorBrowser,UUIDGeneratorNode,validateNumber,vectorDistance,when,without,words,xProd,yesNo,yesterday,zip,zipObject,zipWith,binarySearch,celsiusToFahrenheit,cleanObj,collatz,countVowels,factors,fahrenheitToCelsius,fibonacciCountUntilNum,fibonacciUntilNum,heronArea,howManyTimes,httpDelete,httpPut,isArmstrongNumber,isSimilar,JSONToDate,kmphToMph,levenshteinDistance,mphToKmph,pipeLog,quickSort,removeVowels,solveRPN,speechSynthesis,squareSum}
module.exports = {all,allEqual,any,approximatelyEqual,arrayToCSV,arrayToHtmlList,ary,atob,attempt,average,averageBy,bifurcate,bifurcateBy,bind,bindAll,bindKey,binomialCoefficient,bottomVisible,btoa,byteSize,call,capitalize,capitalizeEveryWord,castArray,chainAsync,checkProp,chunk,clampNumber,cloneRegExp,coalesce,coalesceFactory,collectInto,colorize,compact,compactWhitespace,compose,composeRight,converge,copyToClipboard,countBy,counter,countOccurrences,createDirIfNotExists,createElement,createEventHub,CSVToArray,CSVToJSON,currentURL,curry,dayOfYear,debounce,decapitalize,deepClone,deepFlatten,deepFreeze,deepGet,deepMapKeys,defaults,defer,degreesToRads,delay,detectDeviceType,difference,differenceBy,differenceWith,dig,digitize,distance,drop,dropRight,dropRightWhile,dropWhile,elementContains,elementIsVisibleInViewport,elo,equals,escapeHTML,escapeRegExp,everyNth,extendHex,factorial,fibonacci,filterFalsy,filterNonUnique,filterNonUniqueBy,findKey,findLast,findLastIndex,findLastKey,flatten,flattenObject,flip,forEachRight,formatDuration,formToObject,forOwn,forOwnRight,fromCamelCase,functionName,functions,gcd,geometricProgression,get,getColonTimeFromDate,getDaysDiffBetweenDates,getImages,getMeridiemSuffixOfInteger,getScrollPosition,getStyle,getType,getURLParameters,groupBy,hammingDistance,hasClass,hasFlags,hashBrowser,hashNode,hasKey,head,hexToRGB,hide,httpGet,httpPost,httpsRedirect,hz,includesAny,indentString,indexOfAll,initial,initialize2DArray,initializeArrayWithRange,initializeArrayWithRangeRight,initializeArrayWithValues,initializeNDArray,inRange,insertAfter,insertBefore,intersection,intersectionBy,intersectionWith,invertKeyValues,is,isAbsoluteURL,isAfterDate,isAnagram,isArrayLike,isBeforeDate,isBoolean,isBrowser,isBrowserTabFocused,isDivisible,isDuplexStream,isEmpty,isEven,isFunction,isLowerCase,isNegativeZero,isNil,isNull,isNumber,isObject,isObjectLike,isOdd,isPlainObject,isPrime,isPrimitive,isPromiseLike,isReadableStream,isSameDate,isSorted,isStream,isString,isSymbol,isTravisCI,isUndefined,isUpperCase,isValidJSON,isWeekday,isWeekend,isWritableStream,join,JSONtoCSV,JSONToFile,last,lcm,longestItem,lowercaseKeys,luhnCheck,mapKeys,mapNumRange,mapObject,mapString,mapValues,mask,matches,matchesWith,maxBy,maxDate,maxN,median,memoize,merge,midpoint,minBy,minDate,minN,mostPerformant,negate,nest,nodeListToArray,none,nthArg,nthElement,objectFromPairs,objectToPairs,objectToQueryString,observeMutations,off,offset,omit,omitBy,on,once,onUserInputChange,orderBy,over,overArgs,pad,palindrome,parseCookie,partial,partialRight,partition,percentile,permutations,pick,pickBy,pipeAsyncFunctions,pipeFunctions,pluralize,powerset,prefix,prettyBytes,primes,promisify,pull,pullAtIndex,pullAtValue,pullBy,radsToDegrees,randomHexColorCode,randomIntArrayInRange,randomIntegerInRange,randomNumberInRange,readFileLines,rearg,recordAnimationFrames,redirect,reducedFilter,reduceSuccessive,reduceWhich,reject,remove,removeNonASCII,renameKeys,reverseString,RGBToHex,round,runAsync,runPromisesInSeries,sample,sampleSize,scrollToTop,sdbm,serializeCookie,serializeForm,setStyle,shallowClone,shank,show,shuffle,similarity,size,sleep,smoothScroll,sortCharactersInString,sortedIndex,sortedIndexBy,sortedLastIndex,sortedLastIndexBy,splitLines,spreadOver,stableSort,standardDeviation,stringPermutations,stripHTMLTags,sum,sumBy,sumPower,symmetricDifference,symmetricDifferenceBy,symmetricDifferenceWith,tail,take,takeRight,takeRightWhile,takeWhile,throttle,times,timeTaken,toCamelCase,toCurrency,toDecimalMark,toggleClass,toHash,toKebabCase,tomorrow,toOrdinalSuffix,toSafeInteger,toSnakeCase,toTitleCase,transform,triggerEvent,truncateString,truthCheckCollection,unary,uncurry,unescapeHTML,unflattenObject,unfold,union,unionBy,unionWith,uniqueElements,uniqueElementsBy,uniqueElementsByRight,uniqueSymmetricDifference,untildify,unzip,unzipWith,URLJoin,UUIDGeneratorBrowser,UUIDGeneratorNode,validateNumber,vectorDistance,when,without,words,xProd,yesNo,yesterday,zip,zipObject,zipWith,binarySearch,celsiusToFahrenheit,cleanObj,collatz,countVowels,factors,fahrenheitToCelsius,fibonacciCountUntilNum,fibonacciUntilNum,heronArea,howManyTimes,httpDelete,httpPut,isArmstrongNumber,isSimilar,JSONToDate,kmphToMph,levenshteinDistance,mphToKmph,pipeLog,quickSort,removeVowels,solveRPN,speechSynthesis,squareSum}

14
vscode_snippets/snippets.json
View File

@ -1170,11 +1170,14 @@
"prefix": "30s_hasKey",
"body": [
"const hasKey = (obj, keys) => {",
" return (keys.length > 0) && keys.every(key => {",
" return (",
" keys.length > 0 &&",
" keys.every(key => {",
" if (typeof obj !== 'object' || !obj.hasOwnProperty(key)) return false;",
" obj = obj[key];",
" return true;",
" });",
" })",
" );",
"};"
],
"description": "Returns `true` if the target value exists in a JSON object, `false` otherwise.\n\nCheck if `keys` is non-empty and use `Array.prototype.every()` to sequentially check its keys to internal depth of the object, `obj`. \nUse `Object.prototype.hasOwnProperty()` to check if `obj` does not have the current key or is not an object, stop propagation and return `false`.\nOtherwise assign the key's value to `obj` to use on the next iteration.\n\nReturn `false` beforehand if given key list is empty.\n"
@ -1265,6 +1268,13 @@
],
"description": "Returns the number of times a function executed per second. \n`hz` is the unit for `hertz`, the unit of frequency defined as one cycle per second.\n\nUse `performance.now()` to get the difference in milliseconds before and after the iteration loop to calculate the time elapsed executing the function `iterations` times. \nReturn the number of cycles per second by converting milliseconds to seconds and dividing it by the time elapsed. \nOmit the second argument, `iterations`, to use the default of 100 iterations.\n"
},
"includesAny": {
"prefix": "30s_includesAny",
"body": [
"const includesAny = (arr, values) => values.some(v => arr.includes(v));"
],
"description": "Returns `true` if at least one element of values is included in arr , `false` otherwise.\n\nUse `Array.prototype.some()` and `Array.prototype.includes()` to check if at least one element of `values` is included in `arr`.\n"
},
"indentString": {
"prefix": "30s_indentString",
"body": [