Lesscript-core

Less code - more productivity

Installation

npm install lesscript-core

Usage

    require('lesscript-core')()
    log('hello Lesscript!!')

Loops

repeat(x).do(action)

Repeat one action x times

    require('lesscript-core')()
    repeat(3).do(i => log(i))

   Console output:
    0
    1
    2

from(x).to(y).do(action)

Repeat action from start number to end number

    require('lesscript-core')()
    from(5).to(10).do(index => log(index))

   Console output:
    5
    6
    7
    8
    9

from(x).until(y).do(action)

Repeat action from start number to end number(inclusive)

    require('lesscript-core')()
    from(5).until(10).do(index => log(index))

   Console output:
    5
    6
    7
    8
    9
    10

each(array).do(action)

Repeat one action for each element of array

    require('lesscript-core')()
    each(['Mark', 'Tony', 'Carl']).do((el, index) => log(el, index))

   Console output:
    Mark 0
    Tony 1
    Carl 2

Array operations

uniq(array[, predicate]): arrayWithNoDuplicateElements

Remove duplicates elements from array of string(or number)

    require('lesscript-core')()
    const arrayNames = ['Mark', 'Tony', 'Carl', 'Carl', 'Mark']
    log(arrayNames)
    const arrayUniqNames = uniq(arrayNames)
    log(arrayUniqNames)

   Console output:
    [ 'Mark', 'Tony', 'Carl', 'Carl', 'Mark' ]
    [ 'Mark', 'Tony', 'Carl' ]

Remove duplicates elements from array of objects

    require('lesscript-core')()
    const arrayNames = [{name: 'Mark', lastname: '3'}, {name: 'Tony', lastname: 'Stark'}, {name: 'Tony', lastname: 'Stark'}, {name: 'Tony', lastname: 'Stark'}]
    log(arrayNames)
    const isSamePerson = (pA, pB) => pA.name === pB.name
    const arrayUniqNames = uniq(arrayNames, isSamePerson)
    log(arrayUniqNames)

   Console output:
    [
      { name: 'Mark', lastname: '3' },
      { name: 'Tony', lastname: 'Stark' },
      { name: 'Tony', lastname: 'Stark' },
      { name: 'Tony', lastname: 'Stark' }
    ]
    [
      { name: 'Mark', lastname: '3' },
      { name: 'Tony', lastname: 'Stark' }
    ]

sum(arrayOfNumbers)

Sum all numbers from array

    require('lesscript-core')()
    const result = sum([1, 2, 3])
    log(result)

   Console output:
   6

Transformation

pipe(sourceData, functionA [, functionB, functionC, etc]) : transformedData

Transform a source data to a result data using a combination of functions

    require('lesscript-core')()
    const multiplyX2 = x => x * 2
    const sum2 = x => x + 2
    const formatResult = x => 'The result is ' + x
    
    const result = pipe(7, multiplyX2, sum2, formatResult)
    log(result)

   Console output:
   The result is 16