JQuery quiz app - use <id> tag to toggle variable on/off
- by hairyllama
Hi, I am writing a jquery phonegap quiz app and have a number of categories from which a user can select via checkbox. Relevant questions belonging to those categories are then returned. However, I have two huge switch statements to change the relevant variables from 0 to 1 if the checkbox for that category is selected and vice versa (this info is used to build a compound db query).
The value of the variable behind the checkbox is only ever 0 or 1, so is there a better way to do this?
My HTML is:
<h2>Categories</h2>
<ul class="rounded">
<li>Cardiology<span class="toggle"><input type="checkbox" id="cardiology" /></span></li>
<li>Respiratory<span class="toggle"><input type="checkbox" id="respiratory" /></span></li>
<li>Gastrointestinal<span class="toggle"><input type="checkbox" id="gastrointestinal" /></span></li>
<li>Neurology<span class="toggle"><input type="checkbox" id="neurology" /></span></li>
</ul>
My Javascript is along the lines of:
var toggle_cardiology = 0;
var toggle_respiratory = 0;
var toggle_gastrointestinal = 0;
var toggle_neurology = 0;
$(function() {
$('input[type="checkbox"]').bind('click',function() {
if($(this).is(':checked'))
{
switch (this.id)
{
case "cardiology":
toggle_cardiology = 1;
break;
case "respiratory":
toggle_respiratory = 1;
break;
case "gastrointestinal":
toggle_gastrointestinal = 1;
break;
case "neurology":
toggle_neurology = 1;
break;
etc. (which is cumbersome with 10+ categories plus an else statement with a switch to change them back)
I'm thinking of something along the lines of concatenating the HTML id tag onto the "toggle_" prefix - in pseudocode:
if (toggle_ + this.id == 1){
toggle_ + this.id == 0}
if (toggle_ + this.id == 0){
toggle_ + this.id == 1}
Thanks, Nick.
