#Prelude

Utility set for JS.

• Written in LiveScript.
• Inspired by prelude-ls, underscore and fast.js.
• See method index below
• Github pages with more detailed examples are coming soon...

Example

var sortPostsByName = prelude.array.sortBy(function (post) { return post.name; });
var sorted_posts = sortPostsByName posts

Installation

npm install prelude

Methods

All functions with 2 or more arguments are curried and generally return copies of their inputs, thus treating them as immutable (with the exception of object.mixin where this behavior is not always wanted).

Array prelude.array.<method>

• empty
• has
• contains
• clone
• head
• first
• tail
• last
• initial
• slice
• concat
• flatten
• reverse
• each
• map
• filter
• shuffle
• every
• some
• zip
• zipWith
• partition
• unique
• uniqueBy
• difference
• intersection
• union
• sortBy
• countBy
• groupBy
• splitAt
• index
• indices
• findIndex
• findIndices

Object prelude.object.<method>

• empty
• has
• contains
• keys
• values
• clone
• flatten
• each
• map
• filter
• every
• some
• partition
• keyOf
• keysOf
• findKey
• findKeys
• fromPairs
• toPairs
• fill
• deepFill
• mixin
• deepMixin
• freeze
• deepFreeze
• toJSON
• fromJSON
• definePublic
• definePrivate
• defineStatic
• defineMeta

String prelude.string.<method>

• empty
• contains
• trim
• trimLeft
• trimRight
• repeat
• reverse
• capitalize
• capitalizeSentence
• decapitalize
• decapitalizeSentence
• camelize
• dasherize

Number prelude.number.<method>

• even
• odd
• random
• range
• gcd
• lcm

Fn prelude.fn.<method>

• id
• curry
• compose
• apply
• applyTo
• applyNew
• flip
• delay
• interval
• immediate
• tryCatch

Type prelude.type.<method>

• getType
• isNumber
• isString
• isBoolean
• isFunction
• isArray
• isSet
• isObject
• isMap
• isArguments
• isDate
• isError
• isRegExp
• isSymbol
• isDefined
• isNull
• isUndefined
• isUUID
• isInteger
• inRange