Travis build: 875

README.md

@@ -363,6 +363,7 @@ _30s.average(1, 2, 3);
 * [`bindAll`](#bindall)
 * [`deepClone`](#deepclone)
 * [`deepFreeze`](#deepfreeze)
+* [`deepMapKeys`](#deepmapkeys-)
 * [`defaults`](#defaults)
 * [`dig`](#dig)
 * [`equals`](#equals-)
@@ -6707,6 +6708,66 @@ o[1][0] = 4; // not allowed as well
 
 <br>[⬆ Back to top](#contents)
 
+### deepMapKeys ![advanced](/advanced.svg)
+
+Deep maps an object keys.
+
+Creates an object with the same values as the provided object and keys generated by running the provided function for each key.
+
+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))
+    : typeof obj === 'object'
+      ? Object.keys(obj).reduce((acc, current) => {
+        const val = obj[current];
+        acc[f(current)] =
+            val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
+        return acc;
+      }, {})
+      : obj;
+```
+
+<details>
+<summary>Examples</summary>
+
+```js
+const obj = {
+  foo: '1',
+  nested: {
+    child: {
+      withArray: [
+        {
+          grandChild: ['hello']
+        }
+      ]
+    }
+  }
+};
+const upperKeysObj = deepMapKeys(obj, key => key.toUpperCase());
+/*
+{
+  "FOO":"1",
+  "NESTED":{
+    "CHILD":{
+      "WITHARRAY":[
+        {
+          "GRANDCHILD":[ 'hello' ]
+        }
+      ]
+    }
+  }
+}
+*/
+```
+
+</details>
+
+<br>[⬆ Back to top](#contents)
+
 ### defaults
 
 Assigns default values for all properties in an object that are `undefined`.

docs/about.html

@@ -378,6 +378,7 @@
 </h4><ul><li><a tags="object,function,intermediate" href="./object#bindall">bindAll</a></li>
 <li><a tags="object,recursion,intermediate" href="./object#deepclone">deepClone</a></li>
 <li><a tags="object,recursion,intermediate" href="./object#deepfreeze">deepFreeze</a></li>
+<li><a tags="object,recursion,advanced" href="./object#deepmapkeys">deepMapKeys</a></li>
 <li><a tags="object,intermediate" href="./object#defaults">defaults</a></li>
 <li><a tags="object,recursion,intermediate" href="./object#dig">dig</a></li>
 <li><a tags="object,array,type,advanced" href="./object#equals">equals</a></li>

docs/contributing.html

@@ -378,6 +378,7 @@
 </h4><ul><li><a tags="object,function,intermediate" href="./object#bindall">bindAll</a></li>
 <li><a tags="object,recursion,intermediate" href="./object#deepclone">deepClone</a></li>
 <li><a tags="object,recursion,intermediate" href="./object#deepfreeze">deepFreeze</a></li>
+<li><a tags="object,recursion,advanced" href="./object#deepmapkeys">deepMapKeys</a></li>
 <li><a tags="object,intermediate" href="./object#defaults">defaults</a></li>
 <li><a tags="object,recursion,intermediate" href="./object#dig">dig</a></li>
 <li><a tags="object,array,type,advanced" href="./object#equals">equals</a></li>

snippets/deepMapKeys.md

@@ -8,35 +8,33 @@ 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) => (
+const deepMapKeys = (obj, f) =>
   Array.isArray(obj)
     ? obj.map(val => deepMapKeys(val, f))
-    : (typeof obj === 'object')
+    : typeof obj === 'object'
-    ? Object.keys(obj).reduce((acc, current) => {
+      ? Object.keys(obj).reduce((acc, current) => {
-      const val = obj[current];
+        const val = obj[current];
-      acc[f(current)] = (val !== null && typeof val === 'object')
+        acc[f(current)] =
-        ? deepMapKeys(val, f)
+            val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
-        : acc[f(current)] = val;
+        return acc;
-      return acc;
+      }, {})
-    }, {})
+      : obj;
-    : obj
-);
 ```
 
 ```js
 const obj = {
-  foo:'1',
+  foo: '1',
-  nested:{
+  nested: {
-    child:{
+    child: {
-      withArray:[
+      withArray: [
         {
-          grandChild:[ 'hello' ]
+          grandChild: ['hello']
         }
       ]
     }
   }
 };
-const upperKeysObj = deepMapKeys(obj, (key) => key.toUpperCase());
+const upperKeysObj = deepMapKeys(obj, key => key.toUpperCase());
 /*
 {
   "FOO":"1",

test/_30s.js

@@ -224,6 +224,17 @@ const deepFreeze = obj =>
     prop =>
       !(obj[prop] instanceof Object) || Object.isFrozen(obj[prop]) ? null : deepFreeze(obj[prop])
   ) || Object.freeze(obj);
+const deepMapKeys = (obj, f) =>
+  Array.isArray(obj)
+    ? obj.map(val => deepMapKeys(val, f))
+    : typeof obj === 'object'
+      ? Object.keys(obj).reduce((acc, current) => {
+        const val = obj[current];
+        acc[f(current)] =
+            val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);
+        return acc;
+      }, {})
+      : obj;
 const defaults = (obj, ...defs) => Object.assign({}, obj, ...defs.reverse(), obj);
 const defer = (fn, ...args) => setTimeout(fn, 1, ...args);
 const degreesToRads = deg => (deg * Math.PI) / 180.0;
@@ -1492,4 +1503,4 @@ 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,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}
+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,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,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}