javascript merge object with reference code example
Example 1: merge two objects javascript
const object1 = {
name: 'Flavio'
}
const object2 = {
age: 35
}
const object3 = {...object1, ...object2 } //{name: "Flavio", age: 35}
Example 2: copy an object with object.assign
// We want to update status property value to 'online'
const data = {
user: 'CamperBot',
status: 'offline',
friends: '732,982',
};
// Object.assign takes in a target object (1st parameter) and source objects
// (rest of the parameter list). Source object properties are mapped to the
// target object (which is usually empty). Any matching properties are
// overwritten by the source objects
const newObject = Object.assign({}, data, {status: 'online'})
console.log(newObject)
/*
{
user: 'CamperBot',
status: 'online',
friends: '732,982',
}
*/