JavaScript - One-time function

Sometimes we need something to be executed only once in our code, in JavaScript we can create a one-time function to do something only once. Take a look at the code below 👇

const oneTimeFunction = function () {
  let executed = false
  return function() {
   if (!executed) {
      executed  = true
      // Do something here one time
      console.log('Loading settings...')
   }
  }
}()

oneTimeFunction() // Output -> Loading settings..
oneTimeFunction() // Nothing happens

Quick Demo