On Thu, Apr 2, 2009 at 12:01 PM, Mustafa Sak <[email protected]> wrote:
> i have a problem with my cell renderer, if i want to duplicate a row with
>
>
>
>
> var activeTable = this.tabelle[0] ;
>
> var activeRow = activeTable.getFocusedRow();
>
> var readRow = activeTable.tableModel.getRowData(activeRow);
>
> if (activeRow != null) {
>
> activeTable.tableModel.addRows([readRow],activeRow);
>
> }
>
>
>
> it works fine, but all of the duplicates change there values together if I
> change one of them.
>
>
>
> I don’t understand why.
>
In Javascript, if you assign an object or an array to multiple variables,
you haven't actually copied the object or array; you've just saved a
reference to the object or array in the multiple variables.
var a = [ 1, 2, 3 ];
var b = a;
a[0] = 23;
console.log(b[0]); // will print 23
You can use the static method qx.lang.Array.clone() to clone an array. The
static method qx.lang.Object.clone() will non-recursively clone an object
(i.e. if any of the object's members is itself an array or object, those
will not be cloned by this method).
Using the above example:
var a = [ 1, 2, 3 ];
var b = qx.lang.Array.clone(a);
a[0] = 23;
console.log(b[0]); // will print 1
Derrell
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