arguments.slice ?
Hi,
ths probably has to do with my still sketchy knowledge of javascript,
but i don't understand why within a function this does not work:
index = addToPalette(arguments.slice(2,5));
while this does:
index = addToPalette(arguments[2], arguments[3], arguments[4]);
the first line give me the error that arguments.slice is not a
function, which is weird, no ?
isn't the arguments property an array (so that I can call the 'slice'
method on it ??)
ciao,
Joost.
-------------------------------------------
Joost Rekveld
----------- http://www.lumen.nu/rekveld
-------------------------------------------
"The mystery of the world is the visible, not the invisible"
(Oscar Wilde)
-------------------------------------------
sorry,
the second line should be:
index = addToPalette([arguments[2], arguments[3], arguments[4]]);
(not the extra square brackets)
J.
-------------------------------------------
Joost Rekveld
----------- http://www.lumen.nu/rekveld
-------------------------------------------
"The mystery of the world is the visible, not the invisible"
(Oscar Wilde)
-------------------------------------------
On Apr 20, 2006, at 4:16 PM, Joost Rekveld wrote:
> the first line give me the error that arguments.slice is not a
> function, which is weird, no ?
> isn't the arguments property an array (so that I can call the
> 'slice' method on it ??)
The arguments object is technically *not* an array, despite being
indexable as one. Note the wording "array-like" in the Core
Javascript 1.5 Guide:
http://developer.mozilla.org/en/docs/
Core_JavaScript_1.5_Guide:Using_the_arguments_object
This is why we've provided the arrayfromargs utility method which
converts an arguments object to a true array. Basically it does the
following, though from C:
function arrayfromargs(args)
{
var myarray = new Array();
var i;
for (i=0;i
myarray[i] = args[i];
return myarray;
}
-Joshua
thanks, now I get it..
-------------------------------------------
Joost Rekveld
----------- http://www.lumen.nu/rekveld
-------------------------------------------
"The mystery of the world is the visible, not the invisible"
(Oscar Wilde)
-------------------------------------------