MAP

Transforms each item in the list to another

Description

Goes through each item in the given list and evaluates an formula for each of them. Returns a list with the evaluated values.

The returned list has the same length than the original list, and the order of its items correspond the order in the original list.

Function signature

MAP(list: Array, transformformula: Function) => Array

Parameter

Description

List

List of items to transform

Transform formula

Formula to be evaluated for each item

Examples

animals = [
{
"name": "dog",
"weight": 123
},
{
"name": "cat",
"weight": 48
},
{
"name": "rat",
"weight": 10
}
]
products = [{"name":"Duct tape","price":5},{"name":"Swiss army knife","price":60}]

Formula

Return value

MAP(animals, item.name)

["dog","cat","rat"]

MAP(products, index + ": " + item.name)

["0: Duct tape","1: Swiss army knife"]

MAP<product>(products, product.name + " (" + product.price + "€)")

["Duct tape (5€)","Swiss army knife (60€)"]

MAP<product, position>(products, position + ": " + product.name + " (" + product.price + "€)")

["0: Duct tape (5€)","1: Swiss army knife (60€)"]