javascript - alert() doesn't show the value in a Tampermonkey script - Stack Overflow

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I'm trying to make a Tampermonkey script to unhide one DIV defined like that

<div id="div2" style="display: none;"> 

My script doesn't work and I don't know why...

// ==UserScript== 
// @name            Actualisation Vérification Infra 
// @namespace       / 
// @version         0.1 
// @description     Permet de recharger la page toutes les x millisecondes afin de garder la session active 
// @match           .do* 
// @copyright       2013+, The PCU Team 
// ==/UserScript== 

var extern = document.getElementById('div2').style.display; 
alert('extern'); 

// Refresh toutes les xx minutes  
var delay = "30m"; // Remplacer par le temps souhaité, 1s, 10s, 60s, 1m, 15m, 30m, 1h, 3h, ... 

var t = parseInt(delay.match(/\d+/)[0], 10), 
        unit = "", 
        d = 0; 
switch(delay.match(/[ms]/i)[0]) { 
        case "s": 
                unit = "secondes"; 
                d = t * 1000; 
                break; 
        case "m": 
                unit = "minutes"; 
                d = t * 60000; 
                break; 
        case "h": 
                unit = "heures"; 
                d = t * 3600000; 
                break; 
} 

setInterval("window.location.reload()", d); 

alert("Vous n'aviez pas activé la page depuis " + t + " " + unit);

when i want show the var "extern", the pop-up give my "extern" and not the value of the DIV...

Please could you help me ?

Ps : The second part of my code work properly, it's a refresh of the web page

I'm trying to make a Tampermonkey script to unhide one DIV defined like that

<div id="div2" style="display: none;"> 

My script doesn't work and I don't know why...

// ==UserScript== 
// @name            Actualisation Vérification Infra 
// @namespace       http://use.i.E.your.homepage/ 
// @version         0.1 
// @description     Permet de recharger la page toutes les x millisecondes afin de garder la session active 
// @match           https://reportingogd.truc.fr/reporting/afficherSynthese.do* 
// @copyright       2013+, The PCU Team 
// ==/UserScript== 

var extern = document.getElementById('div2').style.display; 
alert('extern'); 

// Refresh toutes les xx minutes  
var delay = "30m"; // Remplacer par le temps souhaité, 1s, 10s, 60s, 1m, 15m, 30m, 1h, 3h, ... 

var t = parseInt(delay.match(/\d+/)[0], 10), 
        unit = "", 
        d = 0; 
switch(delay.match(/[ms]/i)[0]) { 
        case "s": 
                unit = "secondes"; 
                d = t * 1000; 
                break; 
        case "m": 
                unit = "minutes"; 
                d = t * 60000; 
                break; 
        case "h": 
                unit = "heures"; 
                d = t * 3600000; 
                break; 
} 

setInterval("window.location.reload()", d); 

alert("Vous n'aviez pas activé la page depuis " + t + " " + unit);

when i want show the var "extern", the pop-up give my "extern" and not the value of the DIV...

Please could you help me ?

Ps : The second part of my code work properly, it's a refresh of the web page

• javascript
• greasemonkey
• alert
• tampermonkey

Share Improve this question Follow edited Jul 19, 2013 at 11:30 Brock Adams 93.7k2323 gold badges241241 silver badges305305 bronze badges asked Jul 19, 2013 at 11:09 user2599181user2599181 911 silver badge22 bronze badges 1

• 1 Take out the quotes around extern in the alert. alert(extern) else it alerts a string – dievardump Commented Jul 19, 2013 at 11:19

Add a ment  | 

1 Answer 1

Sorted by: Reset to default 4

Your alert alerts 'extern' because you alert it as a string.

alert(extern) will alert the good value.

And to make the div visible, just:

document.getElementById('div2').style.display = 'block';

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