Example of putting the semicolon at the beginning of the line in JS

semicolon-at-the-beginning.js

// https://twitter.com/josh_cheek/status/1592514535789060101

console.log(1)

// this line will "continue" the previous one so
// it gets a semicolon to stop it from doing that
// JS would otherwise consider it a function call,
// ie `console.log("hello")(function() { ... })
;(function() {
  console.log(2)
})()

// this one, too, it would otherwise be... what I\'d
// call "bracket access", like how you access array
// elements
;[3, 4, 5].forEach(i => console.log(i))

// this one is well behaved, it doesn\'t need a semicolon
Number.prototype.times = function times(fn) {
  for(i=0; i < this; ++i) fn(i)
}

// the minus here could be a binary operator, so: semicolon
;3..times(i => console.log(i+6))