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GeezerVison is showing github.com — JavaScript-Basics/36_array_map.js at master · last-endcode/JavaScript-Basics

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// return new array
//not change size of original array
//uses values from original array when making new one
const people = [
{ name: 'bobo', born: 1987, position: 'developer' },
{ name: 'peter', born: 1989, position: 'designer' },
{ name: 'sussy', born: 1975, position: 'the boss' },
{ name: 'Jane', born: 1999, position: 'the boss' },
];
// const born = people.map(function () {});
// console.log(ages);
/*output:
[ undefined, undefined, undefined ]
*/
const borns = people.map(function (item) {
return `The member company is ${item.person} as ${item.position}`;
});
console.log(borns);
// example again use return as objects
const names = people.map(function (item) {
//create obj firstName and age
return {
firstName: item.name,
age: 2020 - item.born,
};
});
console.log(names);
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