try/catch es10

An update for developer convience allows the use of try/catch without an explicit e Error reference in the catch call.

// Before
try {
  fetch('https://example.com')
} catch (e) {
  console.log(`e`)
}

After:

// After
try {
  fetch('https://example.com')
} catch {
  console.log(`something wrong.`)
}

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encode/decode base64 with JS

Encoding to base64 is done with the btoa command

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.

So sánh hai array trong javascript

Làm thế nào để đánh giá xem hai mảng có bằng nhau không? Có hai cách đó là sử dụng JSON.stringify() hoặc toString()

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).

using javascript callback style error handling