global « scope « Javascript Data Type Q&A

1. Scope of javascript variable declared inline    stackoverflow.com

Here are the problem scripts: This is from the HTML file:

<script type="text/javascript">
    var devices_record = "some string";
</script>
<script type="text/javascript" src="/js/foo.js"></script>

function bar () {
    devices_record ...

2. Preventing auto-creation of global variables in Javascript    stackoverflow.com

I just spent some time debugging a problem that boiled down to forgetting to use the var keyword in front of a new variable identifier, so Javascript was automatically creating that ...

3. Global variables, Javascript    stackoverflow.com

Can I do this ?

var global = 0;

var truc = $.getJSON("events.json", function(json){
 //alert("JSON Data: " + json[0].titre);
  global = json;
});

4. Global JavaScript Variable Scope: Why doesn't this work?    stackoverflow.com

So I'm playing around with JavaScript and came across what I think to be an oddity. Is anyone able to explain the following? (i've included the alerted values as comments) Why is ...

5. javascript: can not use global variable in a function, to navigate the dom    stackoverflow.com

beginner here... what am i missing? i define a global variable that is a reference to an html element:

         var x=document.getElementById("xxx1");

6. Variable Global Scope understanding questions    stackoverflow.com

my question is actually one of understanding - I have a working solution, I just don't understand how it works. Okay, so - what I'm trying to do is adding a setTimeout ...

7. Can't read global variables in a javascript function :(    stackoverflow.com

I am having a strange problem with global variables disappearing on me. Here is some stripped down semi-pseudo-code:

var globy = 99;

jQuery.get("file", function(){
  check();
})

function check(){
 main();
}

function main(){
 forloop
  whileloop
  ...

8. greasemonkey sandbox and scope question    stackoverflow.com

I am creating a GM script and had a question about how to set it up with as little global pollution as possible. I have 1 main function which is available and ...

9. Why is the variable inside this function global?    stackoverflow.com

I thought any variable defined in a function would be local but I can easily access variable 'e' outside of its function.

function change() {
 var d = 6; 
  e ...

10. What is the right way for JavaScript functions to accept variables    stackoverflow.com

I'm new to JS and a bit confused on this subject, I hope you'll understand the question: When I want to use in one function a variable coming from another, or coming from ...

11. Javascript: Variables being leaked into the global scope (Firefox addon)    stackoverflow.com

I submitted my addon to the AMO direcotry and the editor came back with this:

There are still a number of variables being leaked to the global scope, 
probably because you're using ...

12. How to declare global variables using JS    stackoverflow.com

How to declare a global variable using JavaScript, whose life remain through out the HTML code? Can we access the variable that we had declared in one script in another script?

13. window.open global scope variable javascript    stackoverflow.com

Can anyone tell me how i could use a global scope variable so that I could close "window 1" from "window2"?This is really throwing me for a loop, so any help ...

14. JavaScript variable scope    stackoverflow.com

Here's my code

errors=0;
$(document).ready(function () {
    var chk=$("#usnm").val();
    $.post("register.php",{'chkuser':chk},function(data){
        if(data==" Username already exists.Choose ...

15. global JS variables not available to functions defined in included JS files    stackoverflow.com

I'm trying to use a global JS variable that's dumped on the page by a view/template used to drive a JS solution. This has worked fine in a number of environments, ...

16. Javascript Variables. Global scope    forums.devshed.com

I've declared an array in a .js file : var newArray = new Array(); after this i added new data to this array in everypage (one data array per page): newArray[1]="AAAA" // here 1 is the page No like page1.htm : : : newArray[n]="ZZZZ". But at the last page(page100.htm) when i try to access newArray[1], it is showing the value as ...

17. Global Variable Scope Problem    sitepoint.com

18. Global Scope of Javascript variables    sitepoint.com

Global Scope of Javascript variables var isCorrect = new Array(); function calc(qNo) { res1=document.form1.r1[0].checked; res2=document.form1.r1[1].checked; res3=document.form1.r1[2].checked; if(res1) { userAns[qNo]=document.form1.r1[0].value; } if(res2) { userAns[qNo]=document.form1.r1[1].value; } if(res3) { userAns[qNo]=document.form1.r1[2].value; } if(userAns[qNo] == answer[qNo]) { isCorrect[qNo]=1 } else isCorrect[qNo]=0 } let me explain the whole program to you. Im creating an assessment engine. Every page contains a question followed by three options (radio buttons). ...