Array

Function	Description
push	Adds new items to the end of an array
insert	Adds new items to the end of an array
pop	Removes (pops) the last element of an array and return element
concat concatenate	Used to join two or more arrays
length len	Calculating the number of items in a array.
slice	Returns a copy of a portion of the array into a new array from start to end.
page	Returns a portion of the records.

Operator	Description
[]	element

Examples

Context:

const context = {
		cities: [
			{ name: 'Buenos Aires', province: 'BA', population: 2890151, coordinates: { lat: 34.36, long: 58.26 } },
			{ name: 'Córdoba', province: 'CB', population: 1317298, coordinates: { lat: 31.42, long: 64.18 } },
			{ name: 'Rosario', province: 'SF', population: 948312, coordinates: { lat: 32.58, long: 60.36 } },
			{ name: 'Mar del Plata', province: 'BA', population: 593337, coordinates: { lat: 38, long: 57.33 } }
		],
		salta: { name: 'Salta', province: 'SA', population: 520683, coordinates: { lat: 24.33, long: 64.30 } },
		posadas: { name: 'Posadas', province: 'MI', population: 275028, coordinates: { lat: 27.22, long: 55.53 } },
		musicians: ['Charly Garcia', 'Fito Paez', 'Luiz Alberto Spinetta'],
		pair: [2, 4, 6],
		ods: [1, 3, 5]
	}

Example	Result
cities.length()	4
concat(ods,pair)	[1,3,5,2,4,6]
concatenate(pair,ods).sort()	[1,2,3,4,5,6]
cities.name	['Buenos Aires','Córdoba','Rosario','Mar del Plata']
in("San Luis",cities.name)	false
cities.coordinates.lat	[34.36,31.42,32.58,38]
cities.x	[]
cities.x.x	[]
cities.push(salta).name	['Buenos Aires','Córdoba','Rosario','Mar del Plata','Salta']
cities.insert(posadas).name	['Buenos Aires','Córdoba','Rosario','Mar del Plata','Salta','Posadas']
cities.pop().name	'Posadas'
musicians[0]	'Charly Garcia'
musicians[3]	undefined
musicians[musicians.length()-1]	'Luiz Alberto Spinetta'
concatenate(pair,ods).slice(2,3)	[6]
concatenate(pair,ods).page(2,3)	[1,3,5]

Definition

push

• description: Adds new items to the end of an array
• deterministic: true
• return: number
• params:
  • list: T[]
  • value: T

insert

• description: Adds new items to the end of an array
• deterministic: true
• return: number
• params:
  • list: T[]
  • value: T

pop

• description: Removes (pops) the last element of an array and return element
• deterministic: true
• return: T
• params:
  • list: T[]

length

• description: Calculating the number of items in a array.
• deterministic: true
• return: number
• params:
  • list: T[]

len

• description: Calculating the number of items in a array.
• deterministic: true
• return: number
• params:
  • list: T[]

slice

• description: Returns a copy of a portion of the array into a new array from start to end.
• deterministic: true
• return: any[]
• params:
  • list: any[]
  • from: number
  • to: number

page

• description: Returns a portion of the records.
• deterministic: true
• return: number
• params:
  • page: number
  • records: number

Operator []

• description: element
• return: T
• params:
  • array: T[]
  • index: number