JAVASCRIPT

javascript run function once

var something = (function() {
    var executed = false;
    return function() {
        if (!executed) {
            executed = true;
            // do something
        }
    };
})();

something(); // "do something" happens
something(); // nothing happens

run function once javascript

function myFunction() {
  let value = 1 // change to random value
  if(document.getElementById("myId").innerHTML = value) {
    // do something
    
 myFunction == function(){}; // emptying my function after it is run once 
}}