Run function only once after site loading

Question

Run function only once after site loading

Navigation

#1 by (3 votes)
#2 by (1 votes)

6

A friend passed me a script from a box that opens when someone enters the site, but refreshing the page appears again. Could you help me?

Below the code:

function timer() {
    jQuery('.cloudbanner').hover(function () {
        jQuery('#follow').css('display', 'block');
        cronometro();
    });
    jQuery('.closeads').hover(function () {
        jQuery('#follow').css('display', 'block');
        cronometro();
    });
}

function cronometro() {
    setTimeout('amostra()', 3000);
}

function amostra() {
    jQuery('.cloudbanner').css('display', 'none');
    jQuery('#follow').css('display', 'none');
    jQuery('#fr').removeAttr('src');
}

function excludeDiv() {
    jQuery('#close').css('display', 'none');
    jQuery('.closeads').css('display', 'block');
    timer();
}

var numero = 5;
function chamar() {
    if (numero > 0) {
        document.getElementById('timers').innerHTML = --numero;
    }
}

setInterval("chamar();", 900);
setTimeout("excludeDiv();", 10000);

I suppose this has to be with cookie and I should create one, but I do not know how to do it.

javascript jquery cookies

asked by anonymous 15.05.2015 / 17:30

2 answers

Does not INSERT the data in the database Why is array_shift considered to be a lentissima function?

score 3 · Answer 1

Using javascript only:

function setCookie(cname, cvalue, exdays) {
    var d = new Date();
    d.setTime( d.getTime() + (exdays * 24 * 60 * 60 * 1000) );

    var expires = 'expires=' + d.toUTCString();
    document.cookie = cname + '=' + cvalue + '; ' + expires;
}

function getCookie(cname) {
    var name = cname + '=';
    var ca = document.cookie.split(';');

    for( var i = 0; i < ca.length; i++ ) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1);
        if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
    }

    return '';
}

In your scenario, the usage would be basically like this:

// Pega o valor do cookie "flag", se existir
var flag_alert = getCookie("flag");

// Se o cookie não existe -> o usuário nunca viu o alerta
if ( flag_alert != '' ) {
    document.getElementById('alert-id').style.display = 'block';

    // Seta um cookie com duração de 30 dias
    setCookie("flag", true, 30);
} else {
    document.getElementById('alert-id').style.display = 'none';
}

Using a plugin called jQuery Cookie :

// Cria um cookie com duração de 30 dias
$.cookie(
    "alert_flag",
    true,
    {
        expires: 30 
    }
);

// Pegar valor do cookie
$.cookie("alert_flag");

// Deletar um cookie
$.cookie("alert_flag", null);

Mozilla has also created a simple writing / reading framework of cookies in javascript .

But if you want to keep the assertiveness of this warning being shown only once to the user it is better to save this flag in the bank, then at the moment of login you save it in the session and make the checks, if you want this approach let me know I'll put a code for you.

score 1 · Answer 2

I made a code that you can put at the top of the page.

<?php
  session_start();
  if(!isset($_SESSION["caixinha"])){
    //pega a hora que a página foi carregada
    $_SESSION["hora"] = date('H');

    //se não existir é porque a caixinha não foi mostrada.
    echo"<script>funçãoQueMostraCaixa();</script>";
    $_SESSION["caixinha"] == 1;
  }else if($_SESSION["hora"] != date('H')){
    //se passar uma hora ele chama a função para mostrar a caixinha de novo
    echo"<script>funçãoQueMostraCaixa();</script>";
    //atualiza a hora
    $_SESSION["hora"] = date('H');
  }
?>

It creates a session, and takes the time the page is refreshed. In other words it will show the box you only once per hour. (But you can change this to one day by changing the variable date ('H')