How to make a object array available in different parts of the application?

Question

I created a object array inside a click function like this:

    $(".tableButton").click(function()
    {
         CK.tableArray = ["test1","test2","test3","test3"]; // this works
         processTableInfo(CK.tableArray); // this works
    });

Now I need to access the CK.tableArray from another part of the application using the same array information from click function above. I need to access a different range of elements inside this array from above...

    $(".displayTable").click(function()
    {
        alert(CK.tableArray) // not define
    })

score 2 · Accepted Answer · edited May 23 '17 at 12:05

2

One way is to park the variable underneath a global namespace, such as window.

$(".tableButton").click(function()
{
     window.tableArray = ["test1","test2","test3","test3"]; // this works
     processTableInfo(window.tableArray); // this works
});

Then access it through the global namespace:

$(".displayTable").click(function()
{
    alert(window.tableArray) // not define
})

In your example posted, it really depends on where CK is defined (the scope), however. For more information on this, you can visit the MDN article on Functions and function scope.

You can also checkout the MDN article Scope Cheatsheet

You can also checkout the following StackOverflow post

edited May 23 '17 at 12:05

Community

1
1

answered Jul 29 '13 at 23:09

obimod

797
10
26

you beat me by 2 sips of coffee :) – TheVillageIdiot Jul 29 '13 at 23:11
Still can't understand why the CK.tableArray does not work. The window.tableArray is working – Yetimwork Beyene Jul 30 '13 at 00:05
Where is CK defined & initialized in your code relative to your "click" event listener? The answer to this question is why CK.tableArray does not work. – obimod Jul 30 '13 at 03:41

score 2 · Answer 2 · answered Jul 29 '13 at 23:11

2

If your aim is to pass around array object only, try tacking it with window object.

window.tableArray = ["test1","test2",...]

answered Jul 29 '13 at 23:11

TheVillageIdiot

40,053
20
133
188

How to make a object array available in different parts of the application?

2 Answers2