javascript create array of objects with map
var arr = [{
id: 1,
name: 'bill'
}, {
id: 2,
name: 'ted'
}]
var result = arr.map(person => ({ value: person.id, text: person.name }));
console.log(result)javascript create array of objects with map
var arr = [{
id: 1,
name: 'bill'
}, {
id: 2,
name: 'ted'
}]
var result = arr.map(person => ({ value: person.id, text: person.name }));
console.log(result)javascript map
function listFruits() {
let fruits = ["apple", "cherry", "pear"]
fruits.map((fruit, index) => {
console.log(index, fruit)
})
}
listFruits()
// https://jsfiddle.net/tmoreland/16qfpkgb/3/array map javascript
const array1 = [1, 4, 9, 16];
// pass a function to map
const map1 = array1.map(x => x * 2);
console.log(map1);
// expected output: Array [2, 8, 18, 32]map to object
let map = new Map();
map.set("a", 1);
map.set("b", 2);
map.set("c", 3);
let obj = Array.from(map).reduce((obj, [key, value]) => (
Object.assign(obj, { [key]: value }) // Be careful! Maps can have non-String keys; object literals can't.
), {});
console.log(obj); // => { a: 1, b: 2, c: 3 }map()
The map() method creates a new array populated with the results of calling
a provided function on every element in the calling array.
const array1 = [1, 4, 9, 16];
// pass a function to map
const map1 = array1.map(x => x * 2);
console.log(map1);
// expected output: Array [2, 8, 18, 32]Copyright © 2021 Codeinu
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