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);renemane object key js
obj = { name: 'Bobo' } //key: value
obj.newName = obj.name // on object create new key name. Assign old value to this
delete obj.name //delete object with old key namechange 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);js rename property
function renameProperty(obj, oldName, newName) {
obj[newName] = obj[oldName];
delete obj[oldName];
}js rename property
obj.newProperty = obj.property
delete obj.propertyCopyright © 2021 Codeinu
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