get keys objet javascript
var foo = {
'alpha': 'puffin',
'beta': 'beagle'
};
var keys = Object.keys(foo);
console.log(keys) // ['alpha', 'beta']
// (or maybe some other order, keys are unordered).get keys objet javascript
var foo = {
'alpha': 'puffin',
'beta': 'beagle'
};
var keys = Object.keys(foo);
console.log(keys) // ['alpha', 'beta']
// (or maybe some other order, keys are unordered).javascript object first key
var person = {"name":"Steve","age":43};
var firstKeyValue = person[Object.keys(person)[0]]; //"Steve"change object key name javascript es6
const countries = [
{"id": 1, "name": "Afghanistan"},
{"id": 2, "name": "Albania"},
{"id": 3, "name": "Algeria"},
{"id": 4, "name": "American Samoa"}
];
const transformed = countries.map(({ id, name }) => ({ label: id, value: name }));
console.log(transformed);object keys javascript
const object1 = {
a: 'somestring',
b: 42,
c: false
};
console.log(Object.keys(object1));
// expected output: Array ["a", "b", "c"]change object key name javascript es6
const countries = [
{"id": 1, "name": "Afghanistan"},
{"id": 2, "name": "Albania"},
{"id": 3, "name": "Algeria"},
{"id": 4, "name": "American Samoa"}
];
const transformed = countries.map(({ id: label, name: value }) => ({ label, value }));
console.log(transformed);Copyright © 2021 Codeinu
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