Clone Objects in JavaScript

const food = { beef: '🥩', bacon: '🥓' }

// "Spread"
{ ...food }

// "Object.assign"
Object.assign({}, food)

// "JSON"
JSON.parse(JSON.stringify(food))

// RESULT:
// { beef: '🥩', bacon: '🥓' }

Có thể bạn đã miss một số snippets code

Rest Operator for Objects

Now we can use rest on the properties of an Object. It allows us to explicitly extract certain named variables, and assign any uncalled variables into a catchall Object.

Copy a string to the clipboard

Copy a string to the clipboard. Only works as a result of user action (i.e. inside a click event listener).

Spread Operator for Objects

Using the spread operator during an Object declaration will assign the properties of the referenced Object to the new Object.

10 mẹo sử dụng array và object trong javascript

Object.keys và Object.getOwnPropertyNames