CODEWITHSUNDEEP
javascript
David Lences
David Lences

Reputation: 113

Checking new version, Javascript get variable from another file?

How I can get variable from another.js file? I have 2 files: script.js actualversion.js

actualversion.js:

var version = '1.1';

Now i need to read this "version" variable to script.js every 60 sec

setInervat(..., 60000);
if(version != currentversion) { alert("UPDATE!"); }

Sorry I forgot.. The "actualversion.js" is in another domain..

Upvotes: 0

Views: 245

Answers (1)

jtromans
jtromans

Reputation: 4263

If you are using jQuery you could do this;

function checkVersion () {
    $.getScript("http://otherDomain.com/actualversion.js", function(){ 
        console.log("Loaded actualversion");
        if(version !== currentversion) { 
            console.log("UPDATE!"); 
        }
    })
}

var checkingVersion = setInterval(checkVersion() , 60000);

If you want to cancel the check at some point, you can trigger the following function call and pass your setInterval variable (e.g. checkingVersion) as the argument:

clearInterval(checkingVersion);

The most important thing to be aware of with doing what you are doing, is that when you load actualversion.js, you will be loading the whole file. This means that you will load in all its variables and functions. It's important to make sure that these don't conflict with your own.

Upvotes: 1

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