Change single value in javascript object to produce new object
A simple one!
In JavaScript, you can create a new object by copying an existing object and then modifying a single value in the new object. Here are a few ways to do it:
Method 1: Using the spread operator
const originalObject = { a: 1, b: 2, c: 3 };
const modifiedObject = {...originalObject, c: 4 };
console.log(modifiedObject); // Output: { a: 1, b: 2, c: 4 }
Method 2: Using the Object.assign()
method
const originalObject = { a: 1, b: 2, c: 3 };
const modifiedObject = Object.assign({}, originalObject, { c: 4 });
console.log(modifiedObject); // Output: { a: 1, b: 2, c: 4 }
Method 3: Using the Object.create()
method
const originalObject = { a: 1, b: 2, c: 3 };
const modifiedObject = Object.create(originalObject);
modifiedObject.c = 4;
console.log(modifiedObject); // Output: { a: 1, b: 2, c: 4 }
In each of these examples, we create a new object by copying the original object, and then modify a single value in the new object. The resulting object is a new, independent object that is not affected by changes to the original object.
Note that in Method 3, we use Object.create()
to create a new object that inherits from the original object. This means that if we modify a property in the new object, it will also affect the original object. If you want to avoid this behavior, use one of the other two methods.