Currently, I am dealing with two objects:
First Object - A
{
key1 : 'key1',
key2 : 'key2'
}
Second Object - B
{
key1 : 'override a'
}
I am looking to combine them to create the following result:
The Merged Result
{
key1 : 'override a',
key2 : 'key2'
}
If anyone has any recommendations on how to achieve this in TypeScript (or pure JS), please feel free to share!
Object.assign() is a useful method for combining different objects.
Check out the demonstration below.
// Sample input.
const X = {name : 'John', age : 30}
const Y = {age : 35}
// Merging objects using Object.assign().
const mergeObjects = (...args) => Object.assign({}, ...args)
// Resulting merged object.
const result = mergeObjects(X, Y)
// Display the merged object.
console.log(result)A great way to combine two objects in JavaScript is by utilizing the Object.assign() method:
var combined = Object.assign({}, obj1, obj2);
let person1={name:'Alice'}
let person2={name:'Bob',age:30};
//Create a new object and combine the two objects without modifying the original ones
let combinedObject = Object.assign({}, person1, person2);
console.log(combinedObject);
//Combine into the first object
Object.assign(person1,person2);
console.log(person1);Employing the spread operator in JavaScript
const obj1 = {key1: 'value1', key2: 'value2'};
const obj2 = {key1: 'overridden value'};
console.log({ ...obj1, ...obj2 });let mergedObjects = {...objectA, ...objectB};The properties in object B should take precedence over those in object A or trigger an error.
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