Lodash
(https://lodash.com) 📸 Data Snapshot: May 25, 2026Pull the main entities out of the H1, then check whether they actually recur through the body. A page that announces one thing and then talks about another drifts. Headings with no real sentences underneath read as pseudo-substance.
There is virtually zero semantic drift between the homepage signal and the sub-page substance. The homepage H1 ‘Lodash’ and H2 describing it as a utility library are immediately backed by the Documentation page, which provides exhaustive H3 headers for every single function like _.chunk and _.compact. The Custom Builds page provides the actual CLI commands, such as ‘lodash category=collection,function,’ to deliver on the modularity promised in the hero section. The messaging remains consistently targeted at a developer audience without pivoting to enterprise sales jargon on sub-pages.
Semantic Coherence is read from the heading hierarchy first: what each page announces in its H1 and headings, then whether the body actually delivers on it. Below is the structure the engine mapped, followed by the clean text to check for drift between promise and reality.
🏗️ Semantic Structure — heading hierarchy & page identity (the promise the page makes)
HOMEPAGE Lodash (https://lodash.com)
Lodash
HEADER_HEADING Lodash Documentation (https://lodash.com/docs/)
Lodash Documentation
HEADER_HEADING Lodash version support (https://lodash.com/version-support/)
Lodash version support
HEADING_BODY Lodash custom builds (https://lodash.com/custom-builds/)
Lodash custom builds
📝 The Narrative — clean text per page (homepage promise vs. sub-page reality)
HOMEPAGE (https://lodash.com) Lodash
_.defaults({ 'a': 1 }, { 'a': 3, 'b': 2 });// → { 'a': 1, 'b': 2 }_.partition([1, 2, 3, 4], n => n % 2);// → [[1, 3], [2, 4]]
[H2] Download
Core build (~4kB gzipped)Full build (~24kB gzipped)CDN copiesLodash is released under the MIT license & supports modern environments. Review the build differences & pick one that’s right for you.
[H2] Installation
In a browser:<script src="lodash.js"></script>Using npm:$ npm i -g npm$ npm i --save lodashIn Node.js:// Load the full build.var _ = require('lodash');// Load the core build.var _ = require('lodash/core');// Load the FP build for immutable auto-curried iteratee-first data-last methods.var fp = require('lodash/fp'); // Load method categories.var array = require('lodash/array');var object = require('lodash/fp/object'); // Cherry-pick methods for smaller browserify/rollup/webpack bundles.var at = require('lodash/at');var curryN = require('lodash/fp/curryN');Note:Install n_ for Lodash use in the Node.js < 6 REPL.
[H2] Why Lodash?
Lodash makes JavaScript easier by taking the hassle out of working with arrays, numbers, objects, strings, etc. Lodash’s modular methods are great for:Iterating arrays, objects, & stringsManipulating & testing valuesCreating composite functions
[H2] Module Formats
Lodash is available in a variety of builds & module formats.lodash & per method packageslodash-es, babel-plugin-lodash, & lodash-webpack-pluginlodash/fplodash-amd
[H2] Complementary Tools
futil-js is a set of functional utilities designed to complement lodash
[H2] Further Reading
ContributingRelease NotesWiki (Changelog, Roadmap, etc.)
[H2] Support
Tested in Node.js 4+, Bun 1.0+, and the latest Chromium, Firefox, WebKit, and Edge via Playwright, with a best-effort commitment to support Chrome 74+, Firefox 66+, IE 11, Edge 18, and Safari 11+.
SUB-PAGE (https://lodash.com/docs/) Lodash Documentation
[H2] Array
_.chunk_.compact_.concat_.difference_.differenceBy_.differenceWith_.drop_.dropRight_.dropRightWhile_.dropWhile_.fill_.findIndex_.findLastIndex_.first -> head_.flatten_.flattenDeep_.flattenDepth_.fromPairs_.head_.indexOf_.initial_.intersection_.intersectionBy_.intersectionWith_.join_.last_.lastIndexOf_.nth_.pull_.pullAll_.pullAllBy_.pullAllWith_.pullAt_.remove_.reverse_.slice_.sortedIndex_.sortedIndexBy_.sortedIndexOf_.sortedLastIndex_.sortedLastIndexBy_.sortedLastIndexOf_.sortedUniq_.sortedUniqBy_.tail_.take_.takeRight_.takeRightWhile_.takeWhile_.union_.unionBy_.unionWith_.uniq_.uniqBy_.uniqWith_.unzip_.unzipWith_.without_.xor_.xorBy_.xorWith_.zip_.zipObject_.zipObjectDeep_.zipWith
[H2] Collection
_.countBy_.each -> forEach_.eachRight -> forEachRight_.every_.filter_.find_.findLast_.flatMap_.flatMapDeep_.flatMapDepth_.forEach_.forEachRight_.groupBy_.includes_.invokeMap_.keyBy_.map_.orderBy_.partition_.reduce_.reduceRight_.reject_.sample_.sampleSize_.shuffle_.size_.some_.sortBy
[H2] Date
_.now
[H2] Function
_.after_.ary_.before_.bind_.bindKey_.curry_.curryRight_.debounce_.defer_.delay_.flip_.memoize_.negate_.once_.overArgs_.partial_.partialRight_.rearg_.rest_.spread_.throttle_.unary_.wrap
[H2] Lang
_.castArray_.clone_.cloneDeep_.cloneDeepWith_.cloneWith_.conformsTo_.eq_.gt_.gte_.isArguments_.isArray_.isArrayBuffer_.isArrayLike_.isArrayLikeObject_.isBoolean_.isBuffer_.isDate_.isElement_.isEmpty_.isEqual_.isEqualWith_.isError_.isFinite_.isFunction_.isInteger_.isLength_.isMap_.isMatch_.isMatchWith_.isNaN_.isNative_.isNil_.isNull_.isNumber_.isObject_.isObjectLike_.isPlainObject_.isRegExp_.isSafeInteger_.isSet_.isString_.isSymbol_.isTypedArray_.isUndefined_.isWeakMap_.isWeakSet_.lt_.lte_.toArray_.toFinite_.toInteger_.toLength_.toNumber_.toPlainObject_.toSafeInteger_.toString
[H2] Math
_.add_.ceil_.divide_.floor_.max_.maxBy_.mean_.meanBy_.min_.minBy_.multiply_.round_.subtract_.sum_.sumBy
[H2] Number
_.clamp_.inRange_.random
[H2] Object
_.assign_.assignIn_.assignInWith_.assignWith_.at_.create_.defaults_.defaultsDeep_.entries -> toPairs_.entriesIn -> toPairsIn_.extend -> assignIn_.extendWith -> assignInWith_.findKey_.findLastKey_.forIn_.forInRight_.forOwn_.forOwnRight_.functions_.functionsIn_.get_.has_.hasIn_.invert_.invertBy_.invoke_.keys_.keysIn_.mapKeys_.mapValues_.merge_.mergeWith_.omit_.omitBy_.pick_.pickBy_.result_.set_.setWith_.toPairs_.toPairsIn_.transform_.unset_.update_.updateWith_.values_.valuesIn
[H2] Seq
__.chain_.tap_.thru_.prototype[Symbol.iterator]_.prototype.at_.prototype.chain_.prototype.commit_.prototype.next_.prototype.plant_.prototype.reverse_.prototype.toJSON -> value_.prototype.value_.prototype.valueOf -> value
[H2] String
_.camelCase_.capitalize_.deburr_.endsWith_.escape_.escapeRegExp_.kebabCase_.lowerCase_.lowerFirst_.pad_.padEnd_.padStart_.parseInt_.repeat_.replace_.snakeCase_.split_.startCase_.startsWith_.template_.toLower_.toUpper_.trim_.trimEnd_.trimStart_.truncate_.unescape_.upperCase_.upperFirst_.words
[H2] Util
_.attempt_.bindAll_.cond_.conforms_.constant_.defaultTo_.flow_.flowRight_.identity_.iteratee_.matches_.matchesProperty_.method_.methodOf_.mixin_.noConflict_.noop_.nthArg_.over_.overEvery_.overSome_.property_.propertyOf_.range_.rangeRight_.runInContext_.stubArray_.stubFalse_.stubObject_.stubString_.stubTrue_.times_.toPath_.uniqueId
[H2] Properties
_.VERSION_.templateSettings_.templateSettings.escape_.templateSettings.evaluate_.templateSettings.imports_.templateSettings.interpolate_.templateSettings.variable
[H2] Methods
_.templateSettings.imports._
[H2] “Array” Methods
[H3] _.chunk(array, [size=1])
source npm packageCreates an array of elements split into groups the length of size. If array can't be split evenly, the final chunk will be the remaining elements.
[H4] Since
3.0.0
[H4] Arguments
array (Array): The array to process.[size=1] (number): The length of each chunk
[H4] Returns
(Array): Returns the new array of chunks.
[H4] Example
_.chunk(['a', 'b', 'c', 'd'], 2);// => [['a', 'b'], ['c', 'd']] _.chunk(['a', 'b', 'c', 'd'], 3);// => [['a', 'b', 'c'], ['d']]
[H3] _.compact(array)
source npm packageCreates an array with all falsey values removed. The values false, null, 0, -0, 0n, "", undefined, and NaN are falsy.
[H4] Since
0.1.0
[H4] Arguments
array (Array): The array to compact.
[H4] Returns
(Array): Returns the new array of filtered values.
[H4] Example
_.compact([0, 1, false, 2, '', 3]);// => [1, 2, 3]
[H3] _.concat(array, [values])
source npm packageCreates a new array concatenating array with any additional arrays and/or values.
[H4] Since
4.0.0
[H4] Arguments
array (Array): The array to concatenate.[values] (...*): The values to concatenate.
[H4] Returns
(Array): Returns the new concatenated array.
[H4] Example
var array = [1];var other = _.concat(array, 2, [3], [[4]]); console.log(other);// => [1, 2, 3, [4]] console.log(array);// => [1]
[H3] _.difference(array, [values])
source npm packageCreates an array of array values not included in the other given arrays using SameValueZero for equality comparisons. The order and references of result values are determined by the first array.Note: Unlike _.pullAll, this method returns a new array.
[H4] Since
0.1.0
[H4] Arguments
array (Array): The array to inspect.[values] (...Array): The values to exclude.
[H4] Returns
(Array): Returns the new array of filtered values.
[H4] Example
_.difference([2, 1], [2, 3]);// => [1]
[H3] _.differenceBy(array, [values], [iteratee=_.identity])
source npm packageThis method is like _.difference except that it accepts iteratee which is invoked for each element of array and values to generate the criterion by which they're compared. The order and references of result values are determined by the first array. The iteratee is invoked with one argument:(value).Note: Unlike _.pullAllBy, this method returns a new array.
[H4] Since
4.0.0
[H4] Arguments
array (Array): The array to inspect.[values] (...Array): The values to exclude.[iteratee=_.identity] (Function): The iteratee invoked per element.
[H4] Returns
(Array): Returns the new array of filtered values.
[H4] Example
_.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);// => [1.2] // The `_.property` iteratee shorthand._.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');// => [{ 'x': 2 }]
[H3] _.differenceWith(array, [values], [comparator])
source npm packageThis method is like _.difference except that it accepts comparator which is invoked to compare elements of array to values. The order and references of result values are determined by the first array. The comparator is invoked with two arguments: (arrVal, othVal).Note: Unlike _.pullAllWith, this method returns a new array.
[H4] Since
4.0.0
[H4] Arguments
array (Array): The array to inspect.[values] (...Array): The values to exclude.[comparator] (Function): The comparator invoked per element.
[H4] Returns
(Array): Returns the new array of filtered values.
[H4] Example
var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]; _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);// => [{ 'x': 2, 'y': 1 }]
[H3] _.drop(array, [n=1])
source npm packageCreates a slice of array with n elements dropped from the beginning.
[H4] Since
0.5.0
[H4] Arguments
array (Array): The array to query.[n=1] (number): The number of elements to drop.
[H4] Returns
(Array): Returns the slice of array.
[H4] Example
_.drop([1, 2, 3]);// => [2, 3] _.drop([1, 2, 3], 2);// => [3] _.drop([1, 2, 3], 5);// => [] _.drop([1, 2, 3], 0);// => [1, 2, 3]
[H3] _.dropRight(array, [n=1])
source npm packageCreates a slice of array with n elements dropped from the end.
[H4] Since
3.0.0
[H4] Arguments
array (Array): The array to query.[n=1] (number): The number of elements to drop.
[H4] Returns
(Array): Returns the slice of array.
[H4] Example
_.dropRight([1, 2, 3]);// => [1, 2] _.dropRight([1, 2, 3], 2);// => [1] _.dropRight([1, 2, 3], 5);// => [] _.dropRight([1, 2, 3], 0);// => [1, 2, 3]
[H3] _.dropRightWhile(array, [predicate=_.identity])
source npm packageCreates a slice of array excluding elements dropped from the end. Elements are dropped until predicate returns falsey. The predicate is invoked with three arguments: (value, index, array).
[H4] Since
3.0.0
[H4] Arguments
array (Array): The array to query.[predicate=_.identity] (Function): The function invoked per iteration.
[H4] Returns
(Array): Returns the slice of array.
[H4] Example
var users = [ { 'user': 'barney', 'active': true }, { 'user': 'fred', 'active': false }, { 'user': 'pebbles', 'active': false }]; _.dropRightWhile(users,
SUB-PAGE · THIN (https://lodash.com/version-support/) Lodash version support
[H1] Version Support Only the latest version of any given major release line is supported.Versions that are EOL (end-of-life) may receive updates for critical security vulnerabilities, but the lodash team offers no guarantee and does not plan to address or release fixes for any issues found. [H2] Support Timeline VersionSupport StartSupport Endv4.xJanuary 2016ongoingv3.xJanuary 2015January 2016v2.xSeptember 2013January 2015v1.xFebruary 2013September 2013v0.xApril 2012February 2013 [H2] Commercial Support Options If you are unable to update to a supported version of lodash, please consider:HeroDevs Never-Ending Support
SUB-PAGE (https://lodash.com/custom-builds/) Lodash custom builds
[H1] Custom Builds Custom builds make it easy to create lightweight versions of Lodash containing only the features you need. To top it off, we handle all function dependency & alias mapping for you. Review the build differences & pick the one that’s right for you.The Lodash command-line interface is available when lodash-cli is installed as a global package:$ npm i -g npm$ npm i -g lodash-cli$ lodash -h [H2] Build Types Core builds, that are 4 kB, are created using the core modifier.lodash coreStrict builds, with ES strict mode enabled, are created using the strict modifier.lodash strictModularized builds, with Lodash split into modules, are created using the modularize modifier.lodash modularize [H2] Build Commands: Use the category command to pass comma separated categories of functions to include in the build. Valid categories are “array”, “collection”, “date”, “function”, “lang”, “object”, “number”, “seq”, “string”, & “util”.lodash category=collection,functionUse the exports command to pass comma separated names of ways to export the lodash function. Valid exports are “amd”, “commonjs”, “es”, “global”, “node”, “npm”, “none”, & “umd”.lodash exports=amd,nodeUse the iife command to specify code to replace the IIFE that wraps Lodash.lodash iife="\!
This page presents a snapshot of public data from Lodash, captured on May 25, 2026, to show how machine logic reads Semantic Coherence signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to Lodash: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://lodash.com to view the most current version of its content and see directly what this company is about and what it offers.