Copy a new object in vuejs
In Vue.js, you can create a copy of an object using the Object.assign()
method or the spread operator (...
).
Method 1: Using Object.assign()
const originalObject = { a: 1, b: 2, c: 3 };
const copiedObject = Object.assign({}, originalObject);
console.log(copiedObject); // Output: { a: 1, b: 2, c: 3 }
Method 2: Using the spread operator (...
)
Note: This method is only available in Vue.js 2.3.0 and later versions.
const originalObject = { a: 1, b: 2, c: 3 };
const copiedObject = {...originalObject };
console.log(copiedObject); // Output: { a: 1, b: 2, c: 3 }
Method 3: Using JSON.parse(JSON.stringify())
This method is useful when you need to create a deep copy of an object.
const originalObject = { a: 1, b: { c: 2, d: 3 } };
const copiedObject = JSON.parse(JSON.stringify(originalObject));
console.log(copiedObject); // Output: { a: 1, b: { c: 2, d: 3 } }
Method 4: Using a library like Lodash
If you're using Lodash in your project, you can use the cloneDeep()
method to create a deep copy of an object.
const _ = require('lodash');
const originalObject = { a: 1, b: { c: 2, d: 3 } };
const copiedObject = _.cloneDeep(originalObject);
console.log(copiedObject); // Output: { a: 1, b: { c: 2, d: 3 } }
Remember that when you create a copy of an object, you're creating a new reference to the original object. If you modify the copied object, it won't affect the original object.