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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Spread Operator for Objects

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

Reversing an array in JS is really simple with the standard array method. Like below