rakeshpai

func = -> x = "some other string"

x = "some string"
func()

alert(x)

rakeshpai

<script>var _errs=["<application id here>"];(function(a,b){if(b.location.protocol!="https:"){a.onerror=function(a,c,b)
{_errs.push({m:a,u:c,l:b});return!1};var d=function(){var a=b.createElement("script"),
c=b.getElementsByTagName("script")[0];a.src="http://errorception.com/projects/"+_errs[0]+"/beacon.js";c.parentNode.insertBefore(a,c)};
a.addEventListener?a.addEventListener("load",d,!1):a.attachEvent("onload",d)}})(window,document);</script>

rakeshpai

(function() {
    /* Your code here */
}())

rakeshpai

(function(window, document, undefined) {
    /*
        Your code here
        You can reference window, document and undefined as you normally do
    */
}(window, document))

rakeshpai

// Note: Line breaks added for clarity

(function(a, b, c) {
    /*
        Your code here
        Calls to window.whatever will become a.whatever
        Similarly, document.whatever will be b.whatever, and c will be undefined
    */
}(window, document))

rakeshpai

<script>
    var script = document.createElement("script");
    script.type = "text/javascript";
    script.src = "file.js";
    document.body.appendChild(script);
</script>

rakeshpai

<script>
  // <snip>
  
  // Load the SDK Asynchronously
  (function(d){
     var js, id = 'facebook-jssdk'; if (d.getElementById(id)) {return;}
     js = d.createElement('script'); js.id = id; js.async = true;
     js.src = "//connect.facebook.net/en_US/all.js";
     d.getElementsByTagName('head')[0].appendChild(js);
   }(document));

rakeshpai

<script type="text/javascript">
  // <snip>
  
  (function() {
    var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
  })();
</script>

rakeshpai

<script>
    // <snip>
    (function (window, document) {
        var loader = function () {
            var script = document.createElement("script"), tag = document.getElementsByTagName("script")[0];
            script.src = "http://errorception.com/projects/" + _errs[0] + "/beacon.js";
            tag.parentNode.insertBefore(script, tag);
        };

        // Wait until window.onload before downloading any more code.

rakeshpai

<script src="http://platform.twitter.com/anywhere.js?id=YOUR_API_KEY&v=1" type="text/javascript"></script>
<script>
// The twttr object is available to use immediately
twttr.anywhere(function() {
    // Other code here
});
</script>