Javascript function with large number of arguments
Question
I need to call a javascript function with many arguments. Is there any way to do the same as the below code but without writing each of av1, av2,...av58?
A for loop varying from 1 to 58 may do the job. But how is the syntax while defining the function?
<html>
<head>
<script>
function gft1(ff1, ff2, av1,av2, av3, av4, av5, av6, av7, av8, av9, av10, av11, av12, av13, av14, av15, av16, av17, av18, av19, av20, av21, av22, av23, av24, av25, av26, av27, av28, av29, av30, av31, av32, av33, av34, av35, av36, av37, av38, av39, av40, av41, av42, av43, av44, av45, av46, av47, av48, av49, av50, av51, av52, av53, av54, av55, av56, av57, av58)
{
var uu=0;
for ( y=1; y<=58;++ y)
{
uu = uu-(-document.getElementById('av'+y).value);
}
document.getElementById(ff1).value=uu;
document.getElementById(ff2).value=uu;
}
var args = ['ff1','ff2'];
for (var i = 1; i <= 58; i++)
args.push("av" + i);
</script>
</head>
....................................
<html><input type="text" size="1" autocomplete="off" onfocus="this.select()" name="<?php echo "av[$no]"?>" id="<?php echo "av{$no}" ? >" onkeyup="gft1.apply(null, args);"></html>
2 answers
solution1
7 ACCPTED 2015-12-26 10:17:28
you can use for loop to filling the arguments pool
then use apply to call it and passing the arguments
function gft1(){
console.log(arguments);
}
var args = ['ff1','ff2'];
for (var i = 1; i <= 58; i++)
args.push("av" + i);
gft1.apply(null, args);
see usage of apply here
solution2
0 2016-01-12 06:11:18
Not sure if you at all require to pass av1,av2,av3.... when it can be simple done by passing av . Also you are not doing anything av1,av2,av3,... , you are just dealing with av & looping from 1 to 58 and appending y value to av to get the content from DOM.
So a function like this wont be sufficient?
function gft1('ff1',ff2,'av'){
var uu=0;
for ( y=1; y<=58;++ y){
uu = uu-(-document.getElementById('av'+y).value);
// ^^ y's value will vary which will query for `av1,av2,av3..`
}
document.getElementById(ff1).value=uu;
document.getElementById(ff2).value=uu;
}
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