Travis build: 870

README.md

@@ -314,6 +314,7 @@ _30s.average(1, 2, 3);
 * [`luhnCheck`](#luhncheck-)
 * [`maxBy`](#maxby)
 * [`median`](#median)
+* [`midpoint`](#midpoint)
 * [`minBy`](#minby)
 * [`percentile`](#percentile)
 * [`powerset`](#powerset)
@@ -5839,6 +5840,30 @@ const median = arr => {
 median([5, 6, 50, 1, -5]); // 5
 ```
 
+</details>
+
+<br>[⬆ Back to top](#contents)
+
+### midpoint
+
+Calculates the midpoint between two pairs of (x,y) points.
+
+Destructure the array to get `x1`, `y1`, `x2` and `y2`, calculate the midpoint for each dimension by dividing the sum of the two endpoints by `2`.
+
+```js
+const midpoint = ([x1, y1], [x2, y2]) => [(x1 + x2) / 2, (y1 + y2) / 2];
+```
+
+<details>
+<summary>Examples</summary>
+
+```js
+midpoint([2, 2], [4, 4]); // [3, 3]
+midpoint([4, 4], [6, 6]); // [5, 5]
+midpoint([1, 3], [2, 4]); // [1.5, 3.5]
+```
+
+
 </details>
 
 <br>[⬆ Back to top](#contents)

docs/about.html

@@ -341,6 +341,7 @@
 <li><a tags="math,utility,advanced" href="./math#luhncheck">luhnCheck</a></li>
 <li><a tags="math,array,function,beginner" href="./math#maxby">maxBy</a></li>
 <li><a tags="math,array,intermediate" href="./math#median">median</a></li>
+<li><a tags="math,array,beginner" href="./math#midpoint">midpoint</a></li>
 <li><a tags="math,array,function,beginner" href="./math#minby">minBy</a></li>
 <li><a tags="math,intermediate" href="./math#percentile">percentile</a></li>
 <li><a tags="math,beginner" href="./math#powerset">powerset</a></li>

docs/contributing.html

@@ -341,6 +341,7 @@
 <li><a tags="math,utility,advanced" href="./math#luhncheck">luhnCheck</a></li>
 <li><a tags="math,array,function,beginner" href="./math#maxby">maxBy</a></li>
 <li><a tags="math,array,intermediate" href="./math#median">median</a></li>
+<li><a tags="math,array,beginner" href="./math#midpoint">midpoint</a></li>
 <li><a tags="math,array,function,beginner" href="./math#minby">minBy</a></li>
 <li><a tags="math,intermediate" href="./math#percentile">percentile</a></li>
 <li><a tags="math,beginner" href="./math#powerset">powerset</a></li>

test/_30s.js

@@ -714,6 +714,7 @@ const merge = (...objs) =>
       }, {}),
     {}
   );
+const midpoint = ([x1, y1], [x2, y2]) => [(x1 + x2) / 2, (y1 + y2) / 2];
 const minBy = (arr, fn) => Math.min(...arr.map(typeof fn === 'function' ? fn : val => val[fn]));
 const minDate = (...dates) => new Date(Math.min.apply(null, ...dates));
 const minN = (arr, n = 1) => [...arr].sort((a, b) => a - b).slice(0, n);
@@ -1491,4 +1492,4 @@ const speechSynthesis = message => {
 const squareSum = (...args) => args.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0);
 
 
-module.exports = {CSVToArray,CSVToJSON,JSONToFile,JSONtoCSV,RGBToHex,URLJoin,UUIDGeneratorBrowser,UUIDGeneratorNode,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,chunk,clampNumber,cloneRegExp,coalesce,coalesceFactory,collectInto,colorize,compact,compose,composeRight,converge,copyToClipboard,countBy,countOccurrences,counter,createElement,createEventHub,currentURL,curry,dayOfYear,debounce,decapitalize,deepClone,deepFlatten,deepFreeze,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,forOwn,forOwnRight,formatDuration,fromCamelCase,functionName,functions,gcd,geometricProgression,get,getColonTimeFromDate,getDaysDiffBetweenDates,getImages,getMeridiemSuffixOfInteger,getScrollPosition,getStyle,getType,getURLParameters,groupBy,hammingDistance,hasClass,hasFlags,hashBrowser,hashNode,head,hexToRGB,hide,httpGet,httpPost,httpsRedirect,hz,inRange,indentString,indexOfAll,initial,initialize2DArray,initializeArrayWithRange,initializeArrayWithRangeRight,initializeArrayWithValues,initializeNDArray,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,isPlainObject,isPrime,isPrimitive,isPromiseLike,isReadableStream,isSameDate,isSorted,isStream,isString,isSymbol,isTravisCI,isUndefined,isUpperCase,isValidJSON,isWritableStream,join,last,lcm,longestItem,lowercaseKeys,luhnCheck,mapKeys,mapObject,mapString,mapValues,mask,matches,matchesWith,maxBy,maxDate,maxN,median,memoize,merge,minBy,minDate,minN,mostPerformant,negate,nest,nodeListToArray,none,nthArg,nthElement,objectFromPairs,objectToPairs,observeMutations,off,offset,omit,omitBy,on,onUserInputChange,once,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,reduceSuccessive,reduceWhich,reducedFilter,reject,remove,removeNonASCII,renameKeys,reverseString,round,runAsync,runPromisesInSeries,sample,sampleSize,scrollToTop,sdbm,serializeCookie,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,timeTaken,times,toCamelCase,toCurrency,toDecimalMark,toHash,toKebabCase,toOrdinalSuffix,toSafeInteger,toSnakeCase,toTitleCase,toggleClass,tomorrow,transform,triggerEvent,truncateString,truthCheckCollection,unary,uncurry,unescapeHTML,unflattenObject,unfold,union,unionBy,unionWith,uniqueElements,uniqueElementsBy,uniqueElementsByRight,uniqueSymmetricDifference,untildify,unzip,unzipWith,validateNumber,when,without,words,xProd,yesNo,zip,zipObject,zipWith,JSONToDate,binarySearch,celsiusToFahrenheit,cleanObj,collatz,countVowels,factors,fahrenheitToCelsius,fibonacciCountUntilNum,fibonacciUntilNum,heronArea,howManyTimes,httpDelete,httpPut,isArmstrongNumber,isSimilar,kmphToMph,levenshteinDistance,mphToKmph,pipeLog,quickSort,removeVowels,solveRPN,speechSynthesis,squareSum}
+module.exports = {CSVToArray,CSVToJSON,JSONToFile,JSONtoCSV,RGBToHex,URLJoin,UUIDGeneratorBrowser,UUIDGeneratorNode,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,chunk,clampNumber,cloneRegExp,coalesce,coalesceFactory,collectInto,colorize,compact,compose,composeRight,converge,copyToClipboard,countBy,countOccurrences,counter,createElement,createEventHub,currentURL,curry,dayOfYear,debounce,decapitalize,deepClone,deepFlatten,deepFreeze,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,forOwn,forOwnRight,formatDuration,fromCamelCase,functionName,functions,gcd,geometricProgression,get,getColonTimeFromDate,getDaysDiffBetweenDates,getImages,getMeridiemSuffixOfInteger,getScrollPosition,getStyle,getType,getURLParameters,groupBy,hammingDistance,hasClass,hasFlags,hashBrowser,hashNode,head,hexToRGB,hide,httpGet,httpPost,httpsRedirect,hz,inRange,indentString,indexOfAll,initial,initialize2DArray,initializeArrayWithRange,initializeArrayWithRangeRight,initializeArrayWithValues,initializeNDArray,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,isPlainObject,isPrime,isPrimitive,isPromiseLike,isReadableStream,isSameDate,isSorted,isStream,isString,isSymbol,isTravisCI,isUndefined,isUpperCase,isValidJSON,isWritableStream,join,last,lcm,longestItem,lowercaseKeys,luhnCheck,mapKeys,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,observeMutations,off,offset,omit,omitBy,on,onUserInputChange,once,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,reduceSuccessive,reduceWhich,reducedFilter,reject,remove,removeNonASCII,renameKeys,reverseString,round,runAsync,runPromisesInSeries,sample,sampleSize,scrollToTop,sdbm,serializeCookie,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,timeTaken,times,toCamelCase,toCurrency,toDecimalMark,toHash,toKebabCase,toOrdinalSuffix,toSafeInteger,toSnakeCase,toTitleCase,toggleClass,tomorrow,transform,triggerEvent,truncateString,truthCheckCollection,unary,uncurry,unescapeHTML,unflattenObject,unfold,union,unionBy,unionWith,uniqueElements,uniqueElementsBy,uniqueElementsByRight,uniqueSymmetricDifference,untildify,unzip,unzipWith,validateNumber,when,without,words,xProd,yesNo,zip,zipObject,zipWith,JSONToDate,binarySearch,celsiusToFahrenheit,cleanObj,collatz,countVowels,factors,fahrenheitToCelsius,fibonacciCountUntilNum,fibonacciUntilNum,heronArea,howManyTimes,httpDelete,httpPut,isArmstrongNumber,isSimilar,kmphToMph,levenshteinDistance,mphToKmph,pipeLog,quickSort,removeVowels,solveRPN,speechSynthesis,squareSum}