Question

I have two functions, one creates paragraphs dynamically and the other function selects (“changes background color”) and deselects (“changes to default background color”). The problem I have is that I can select all paragraphs at the same time and I want to be able to select one paragraph at a time, of course, after deselecting the already selected paragraph.

How do I prevent another paragraph to be selected/highlighted when there is one already selected/highlighted?

You can check out the full source code here: http://jsfiddle.net/2QqmN/1/

jQuery code:

$(document).ready(function(){
var count = 1;
$("#add").on(
    "click", function(){
        $("#a").append('<p>Paragraph ' + count + '</p>');
    count++;

    });
$("#a").on("click", "p", function(){ 
var bg = $(this).css("background-color");


    if(bg=="rgb(255, 255, 255)") {  
        $(this).css({"background-color":"green", "color":"white"});

    } 

 else { 

  $(this).css({"background-color":"white","color":""});


 }
    });



});

If I was clear enough, please help!
You will be appreciated!

Answer 1

Just add a flag, like so:

$(document).ready(function(){
var count = 1, flag = false;
    $("#add").on("click", function(){
         $("#a").append('<p>Paragraph ' + count + '</p>');
         count++;
   });
   $("#a").on("click", "p", function(){ 
        var bg = $(this).css("background-color");
        if(bg=="rgb(255, 255, 255)") {  
            if (flag==false) {
               $(this).css({"background-color":"green", "color":"white"});
               flag=true;
            }
        } else { 
             $(this).css({"background-color":"white","color":""});
             flag=false;
       }
  });
});

FIDDLE