The case when you do need a semicolon in JavaScript. Check it out in StackBlitz demo: https://stackblitz.com/edit/when-you-need-a-semicolon

when-you-need-a-semicolon.js

const items = [1, 2, 3]

try {
  // you need a semicolon after following line to make it work
  items.shift()
  (items.length && items[0] === 2) && items.unshift(1)
} catch(e) {
  console.error(e)
}

/*
Parser will try to call the code inside the try block this way:
  
  items.shift()(items.length && items[0] === 2) && items.unshift()
  
Output: Error: items.shift(...) is not a function
*/