Question

I have skimmed down my code to make it easier to read but this is basically what I have and it is working fine.

function findmatch() {

var value = document.search1.search_text1.value;

}

But what I want to do is have a parameter x and replace the 1’s with the x but I can’t seem to do it. I thought the following would work but had no luck with it.

function findmatch(x) {

var value = document.'search'+x.'search_text'+x.value;

}

Any suggestions would be greatly appreciated.

Thanks.

Answer 1

You need to use square bracket notation:

function findmatch (x) {
    var value = document['search' + x]['search_text' + x].value;
}

To explain a little further, in JS

document.search1

is the same thing as

document['search1']

thus, with the latter you can dynamically build names

x = 1;
document['search' + x]