var student = {name: "Rahul", age: "16", hobby: "football"};
//using ES6
var studentCopy1 = Object.assign({}, student);
//using spread syntax
var studentCopy2 = {...student};
//Fast cloning with data loss
var studentCopy3 = JSON.parse(JSON.stringify(student));const object1 = {
name: 'Flavio'
}
const object2 = {
age: 35
}
const object3 = {...object1, ...object2 } //{name: "Flavio", age: 35}
var person={"name":"Billy","age":34};
var clothing={"shoes":"nike","shirt":"long sleeve"};
var personWithClothes= Object.assign(person, clothing);//merge the two object
const a = { b: 1, c: 2 };
const d = { e: 1, f: 2 };
const ad = { ...a, ...d }; // { b: 1, c: 2, e: 1, f: 2 }let obj1 = { foo: 'bar', x: 42 };
let obj2 = { foo: 'baz', y: 13 };
let clonedObj = { ...obj1 };
// Object { foo: "bar", x: 42 }
let mergedObj = { ...obj1, ...obj2 };
// Object { foo: "baz", x: 42, y: 13 }
/**
* Simple object check.
* @param item
* @returns {boolean}
*/
export function isObject(item) {
return (item && typeof item === 'object' && !Array.isArray(item));
}
/**
* Deep merge two objects.
* @param target
* @param ...sources
*/
export function mergeDeep(target, ...sources) {
if (!sources.length) return target;
const source = sources.shift();
if (isObject(target) && isObject(source)) {
for (const key in source) {
if (isObject(source[key])) {
if (!target[key]) Object.assign(target, { [key]: {} });
mergeDeep(target[key], source[key]);
} else {
Object.assign(target, { [key]: source[key] });
}
}
}
return mergeDeep(target, ...sources);
}