Collection of interesting JavaScript syntax.

interesting.js

// 1.
// replace instances with different replacement strings
const qwerty = 'qw#rt#'.replace(/#/g, [].shift.bind(['e', 'y']));

// 2.
// make Array.slice available as a function instead of a method
const slice = Function.prototype.call.bind(Array.prototype.slice);

// 3.
// ASI (failure) working in conjunction with the comma operator
var name = { Goodbye: [1, 2, 3] }
// not an array; bracket notation addressing "Goodbye" property
// of the preceeding object because there is no semi-colon
[ 'Hello', 'Goodbye' ].forEach(function (value) {
  // `name` is undefined because `forEach` returns nothing
  console.log(`${value} ${name} <br />`)
})

;(function () {
  const q = { Goodbye: [1, 2, 3] }[ 'Hello', 'Goodbye' ]

  console.log(typeof q, q)
}())