typescript map function code example

Example 1: typescript map list to new list of objects

var result = arr.map(person => ({ value: person.id, text: person.name }));
console.log(result)

Example 2: typescript create map

var map = new Map();  

map.set('1', 'Ail');     
map.set(1, 'testvalue');    

console.log( "Value 1= " + map.get(1));   

console.log( "Key is Present in the Map = " + map.has(3) );   

console.log( "Delete value from Map = " + map.delete(1) );

Example 3: map and reduce an array in js

const rebels = pilots.filter(pilot => pilot.faction === "Rebels");const empire = pilots.filter(pilot => pilot.faction === "Empire");