sessionStorage注册

Question

I got few problems on a script

I can't understand why my timer still keep on going while "minutes" and "secondes" === 0 Second thing, if i'm reloading the page my timer left.

let get_sec = sessionStorage.getItem('sec_storage');
let get_min = sessionStorage.getItem('min_storage');

if (!get_sec && !get_min){
    //Sessionstorage vide
    secondes = 10;
    minutes = 0;
}
let interval = setInterval(function () {
    secondes--;
    sessionStorage.setItem('sec_storage', get_sec);
    sessionStorage.setItem('min_storage', get_min);
    $('#count-timer').text('Expiration in : ' + minutes + ' minutes ' + secondes + ' secondes ');
    if (secondes === 0) {
        minutes--;
        secondes = 59;
    }
    if(minutes <= 0 && secondes <= 0){
        clearInterval(interval);
        sessionStorage.removeItem('sec_storage');
        sessionStorage.removeItem('min_storage');
        $('#count-timer').text('Sorry, reservation expired');
    }
}, 1000);

Answer 1

In these blocks

if (secondes === 0) {
    minutes--;
    secondes = 59;
}
if(minutes <= 0 && secondes <= 0){
    clearInterval(interval);
    sessionStorage.removeItem('sec_storage');
    sessionStorage.removeItem('min_storage');
    $('#count-timer').text('Sorry, reservation expired');
}

If the secondes value is === 0, you change it to 59. therefore, in your last if , secondes is never lower nor equal to 0 and clearInterval(interval); is never called

Add this verification in your first if block

if ((minutes > 0) && (secondes === 0)) {
    minutes--;
    secondes = 59;
}