_.defaults({ 'a': 1 }, { 'a': 3, 'b': 2 });// → { 'a': 1, 'b': 2 }_.partition([1, 2, 3, 4], n => n % 2);// → [[1, 3], [2, 4]]
浏览器环境:
<script src="lodash.js"></script>
通过 npm:
$ npm i -g npm$ npm i --save lodash
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');
注意:
如需在 Node.js < 6 的 REPL 环境中使用 Lodash,请安装 n_。
Lodash 通过降低 array、number、objects、string 等等的使用难度从而让 JavaScript 变得更简单。 Lodash 的模块化方法 非常适用于:
Lodash 提供 多种构建方式 和模块格式。
在 Chrome 74-75、Firefox 66-67、IE 11、Edge 18、Safari 11-12 和 Node.js 8-12 环境中测试通过。
数组 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
集合 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
日期 Date
函数 Function
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
数学 Math
对象 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
Seq
字符串 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
实用函数 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
Properties
Methods