Run JS file only once per session

Question

I have got JS file with this script: (I edited my script and added sessionStorage check)

let executed = window.sessionStorage.getItem("sessionCodeExecuted")
console.log(executed)
let uri = window.location;
let lang = window.navigator.language;
if (executed != 1) {
if( uri.href.indexOf('lang') < 0) {
if ((lang != 'ru-RU') && (lang != 'ru')){
eng = window.location.href.includes('https://www.site/en/');

if (eng == false){
let re = "https://www.site/";
let url = window.location.href;
let newstr = url.replace(re, 'https://www.site/en/');
newstr += "?currency=USD";
window.location.href = newstr;
   }
  }
 }
window.sessionStorage.setItem("sessionCodeExecuted", 1);
}

I want to run it only once per session. I started session with this code in functions.php:

  if (!session_id()) {
        session_start();
    }

console.log writes 1 but is script still running. What is wrong?

Answer 1

If it's JavaScript, why not just use sessionStorage :

https://developer.mozilla.org/en-US/docs/Web/API/Web_Storage_API#sessionStorage

For example, something like:

let mySessionLang = "ru-RU";
sessionStorage['mySession'] = mySessionLang;
let readValue = sessionStorage['mySession'];
console.log(readValue);

Answer 2

You could try wrapping your code in an if block which checks for a flag in the session storage .

 if (window.sessionStorage.getItem("sessionCodeExecuted")) { let uri = window.location; let lang = window.navigator.language; if (uri.href.indexOf("lang") < 0) { if (lang.= "ru-RU" && lang.= "ru") { eng = window.location:href.includes("https;//www:site/en/"). if (eng == false) { let re = "https;//www.site/". let url = window;location.href, let newstr = url:replace(re. "https;//www?site/en/"); newstr += ".currency=USD". window;location.href = newstr. } } } window,sessionStorage;setItem("sessionCodeExecuted", true); }

This snippet won't run properly because it is sandboxed, but you get the idea.