js create object from array
[
{ id: 10, color: "red" },
{ id: 20, color: "blue" },
{ id: 30, color: "green" }
].reduce((acc, cur) => ({ ...acc, [cur.color]: cur.id }), {})
//output:
{red: 10, blue: 20, green: 30}js create object from array
[
{ id: 10, color: "red" },
{ id: 20, color: "blue" },
{ id: 30, color: "green" }
].reduce((acc, cur) => ({ ...acc, [cur.color]: cur.id }), {})
//output:
{red: 10, blue: 20, green: 30}how to get array from object in javascript
let result = objArray.map(({ foo }) => foo)javascript find object in array by property value
const fruits = ['apple', 'banana', 'grapes', 'mango', 'orange'];
const filterItems = (needle, heystack) => {
let query = needle.toLowerCase();
return heystack.filter(item => item.toLowerCase().indexOf(query) >= 0);
}
console.log(filterItems('ap', fruits)); // ['apple', 'grapes']
console.log(filterItems('ang', fruits)); // ['mango', 'orange']return an object from an array javascript
myArray.find(item => item.isAstronaut)find an object from array of objects javascript
function getByValue2(arr, value) {
var result = arr.filter(function(o){return o.b == value;} );
return result? result[0] : null; // or undefined
}Copyright © 2021 Codeinu
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