Sets

Function	Description
union	Is the set A U B that contains all the elements of A and B.
intersection	Is the set A \ B that contains all the elements of A that do not belong to B.
difference	Is the set containing all the elements of A that do not belong to B
symmetricDifference	Is the set containing the elements of A and B that are not common

Examples

Context

const context = {
	ods: [1, 3, 5, 7, 9],
	prime: [2, 3, 5, 7],
	orders: [
		{
			number: '20003',
			details: [
				{ article: 'Pear', qty: 2 },
				{ article: 'Banana', qty: 2 },
				{ article: 'White grape', qty: 1 },
				{ article: 'Apple', qty: 1 }
			]
		},
		{
			number: '20004',
			details: [
				{ article: 'Apple', qty: 1 },
				{ article: 'Banana', qty: 2 },
				{ article: 'Pear', qty: 1 }
			]
		}
	]
}

Example	Result
ods.union(prime)	[1,3,5,7,9,2]
ods.intersection(prime)	[3,5,7]
ods.difference(prime)	[1,9]
ods.symmetricDifference(prime)	[1,9,2]

union:

orders[0].details.union(orders[1].details)

Result:

[{"article":"Pear","qty":2}
,{"article":"Banana","qty":2}
,{"article":"White grape","qty":1}
,{"article":"Apple","qty":1}
,{"article":"Pear","qty":1}
]

intersection:

orders[0].details.intersection(orders[1].details)

Result:

[{"article":"Apple","qty":1}
,{"article":"Banana","qty":2}
]

difference:

orders[0].details.difference(orders[1].details)

Result:

[{"article":"Pear","qty":2}
,{"article":"White grape","qty":1}
]

symmetricDifference:

orders[0].details.symmetricDifference(orders[1].details)

Result:

[{"article":"Pear","qty":2}
,{"article":"White grape","qty":1}
,{"article":"Pear","qty":1}
]

Definition

union

• description: Is the set A U B that contains all the elements of A and B.
• deterministic: true
• return: T[]
• params:
  • a: T[]
  • b: T[]

intersection

• description: Is the set A \ B that contains all the elements of A that do not belong to B.
• deterministic: true
• return: T[]
• params:
  • a: T[]
  • b: T[]

difference

• description: Is the set containing the elements of A and B that are not common
• deterministic: true
• return: T[]
• params:
  • a: T[]
  • b: T[]

symmetricDifference

• description: Is the set containing the elements of A and B that are not common
• deterministic: true
• return: T[]
• params:
  • a: T[]
  • b: T[]