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

Ajax, call jQuery POST to node.js expressjs

using async/await to catch errors

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).

serialize Form

Sử dụng formdata constructor để convert form, FormData, array.from(). Kết hợp window.encodeURIComponent() để encode từng value trong form.

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.