Hello,
No doubt this is simple but I cannot see how to do it ...
I have a variable called situation_number with a series of values 1,
2, 3 etc.
I would like to have a series of variables situation-1, situation-2
etc where the numbers 1 and 2 come from the situation_number variable.
How do I create situation-1 etc such that the situation_)number
variable is used?
Thanks
Geoff 4 1199
Geoff Cox wrote: Hello,
No doubt this is simple but I cannot see how to do it ...
I have a variable called situation_number with a series of values 1, 2, 3 etc.
I would like to have a series of variables situation-1, situation-2 etc where the numbers 1 and 2 come from the situation_number variable.
How do I create situation-1 etc such that the situation_)number variable is used?
Probably the best way to loop through them is to create the variables a
members of an Array, then loop through the array. It allows you to add
more elements and use them very easily - see showVars0().
Another method is to create all the variables as globals and access them
using square bracket notation and the window object - see showVars1():
for (var i=0; i<n; ++i){
alert( window['situation-' + i] );
}
But that is not good programming practice - the global space should not
be crowded with junk that need not be there - see showVars1().
Yet another way is to use eval - see showVars(2).
<script type="text/javascript">
// Using an array
function showVars0()
{
var sit = ['sit one','sit two','sit three'];
for (var i=0, j=sit.length; i<j; ++i){
alert( 'Array: ' +sit[i] );
}
}
showVars0();
// Using global variables
function showVars1()
{
sit1 = 'sit one';
sit2 = 'sit two';
sit3 = 'sit three';
for (var i=1; i<4; ++i){
alert( 'Global: ' + window['sit'+i] );
}
}
showVars1();
// Using eval
function showVars2()
{
var sit1 = 'sit one';
var sit2 = 'sit two';
var sit3 = 'sit three';
for (var i=1; i<4; ++i){
alert( 'Eval: ' +eval('sit'+i) );
}
}
showVars2();
</script> Thanks
Geoff
--
Rob
On Wed, 12 Oct 2005 07:14:59 GMT, RobG <rg***@iinet.net.au> wrote: Probably the best way to loop through them is to create the variables a members of an Array, then loop through the array. It allows you to add more elements and use them very easily - see showVars0().
Rob,
Many thanks - I will read on !
Cheers
Geoff Another method is to create all the variables as globals and access them using square bracket notation and the window object - see showVars1():
for (var i=0; i<n; ++i){ alert( window['situation-' + i] ); }
But that is not good programming practice - the global space should not be crowded with junk that need not be there - see showVars1().
Yet another way is to use eval - see showVars(2).
<script type="text/javascript">
// Using an array function showVars0() { var sit = ['sit one','sit two','sit three'];
for (var i=0, j=sit.length; i<j; ++i){ alert( 'Array: ' +sit[i] ); } } showVars0();
// Using global variables function showVars1() { sit1 = 'sit one'; sit2 = 'sit two'; sit3 = 'sit three';
for (var i=1; i<4; ++i){ alert( 'Global: ' + window['sit'+i] ); } } showVars1();
// Using eval function showVars2() { var sit1 = 'sit one'; var sit2 = 'sit two'; var sit3 = 'sit three';
for (var i=1; i<4; ++i){ alert( 'Eval: ' +eval('sit'+i) ); } } showVars2();
</script>
Thanks
Geoff
"Geoff Cox" <ge*******@notquitecorrectfreeuk.com> wrote in message
news:mb********************************@4ax.com... Hello,
No doubt this is simple but I cannot see how to do it ...
I have a variable called situation_number with a series of values 1, 2, 3 etc.
I would like to have a series of variables situation-1, situation-2 etc where the numbers 1 and 2 come from the situation_number variable.
How do I create situation-1 etc such that the situation_)number variable is used?
this is the same answer as a simular question you posted about
getelementbyid !
On Wed, 12 Oct 2005 19:48:08 GMT, "Zoe Brown"
<zo***********@N-O-S-P-A-A-Mtesco.net> wrote: this is the same answer as a simular question you posted about getelementbyid !
You may well be right Zoe - I'm going round quite a few circles these
days!
Have got this one sorted now!
Cheers
Geoff This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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