Develop Reference

on.click not working after first click on dynamically created table

I dynamically create a table full of links of 'actors', which allows to pull the actors information into a form to delete or update the row. The delete button only pops up when you select an actor.
I'm able to click a row, pull the information into the forms, and delete it on first try. However when I attempt to add a new 'Actor' and then delete it, or just delete an existing 2nd row, the button 'Delete Actor' doesn't work. It's only after the first successful delete does the button no longer work.
var addActor = function() {
// Creates a table of links for each added actor with an id based from # of actors
$("#actorsTable").append("<tr><td><a href='' onclick='deleteActor(this)' class='update' data-idx='" + actors.length + "'>" + newActor.fName + " " + newActor.lName + "</a></td></tr> ");
$(".update").off("click");
$(".update").on("click", selectActor);
};
var deleteActor = function(e) {
$("#deleteActor").on('click', function(event) {
event.preventDefault();
var row = e.parentNode.parentNode;
row.parentNode.removeChild(row);
clearForm(actorForm);
actorState("new");
});
};
I'm new to jQuery/javascript, and I'm pretty sure its due to the change in DOM, but I just don't know what to change to make it work.
Here is an Example of it in action

Try
var deleteActor = function(e) {
$("#deleteActor").unbind();
$("#deleteActor").on('click', function(event) {
event.preventDefault();
var row = e.parentNode.parentNode;
row.parentNode.removeChild(row);
clearForm(actorForm);
actorState("new");
});
};
Here is the link for unbind.
http://api.jquery.com/unbind/

The problem is because you're adding another click handler (in jQuery) within the click handler function run from the onclick attribute. You should use one method or the other, not both. To solve the problem in the simplest way, just remove the jQuery code from the deleteActor() function:
var deleteActor = function(e) {
var row = e.parentNode.parentNode;
row.parentNode.removeChild(row);
clearForm(actorForm);
actorState("new");
};

when you add html dynamically you need to attach the event to the parent static element like so:
$("#actorsTable").on("click","a.update", function() {
$(this).closest("tr").remove();
});

How to add an event handler to an element which is rendered on a button click?

I have two links on a page. When I click on the second link, it displays certain fields. I want to write a onkeyup() event handler for one of the fields. I have written the code like this and I'm missing something. Please help.
var inputBox;
$().ready(function() {
//cc_sec is the id of the second link in my page.
$('#cc_sec').click(function(){
inputBox = document.getElementById("{!$Component.pg.pb.cardForm.cardnumber}");
alert(inputBox.id);
//This alert is giving me the ID of the element correctly.
});
//This is not working. inputBox is declared as global variable.
inputBox.onkeyup = function(){
alert(inputBox.value);
document.getElementById('printCardNo').innerHTML = inputBox.value;
}
});
Please point out my mistake. TIA :)
UPDATE:
I can get the element by ID only after clicking the cc_sec link. So I cannot do inputBox = document.getElementById("{!$Component.pg.pb.cardForm.cardnumber}"); in the beginning of the ready function.

use jQuery .on to add eventhandler to dynamically created elements.
$('body').on("keyup","{!$Component.pg.pb.cardForm.cardnumber}",function(){
alert($(this).val());
document.getElementById('printCardNo').innerHTML = $(this).val();
});

You have two options
call document.getElementById in document ready:
var inputBox;
$().ready(function() {
inputBox = document.getElementById("{!$Component.pg.pb.cardForm.cardnumber}");
//cc_sec is the id of the second link in my page.
$('#cc_sec').click(function() {
alert(inputBox.id);
//This alert is giving me the ID of the element correctly.
});
inputBox.onkeyup = function() {
alert(inputBox.value);
document.getElementById('printCardNo').innerHTML = inputBox.value;
};
});
or set onkeyup in click event:
var inputBox;
$().ready(function() {
//cc_sec is the id of the second link in my page.
$('#cc_sec').click(function() {
inputBox = document.getElementById("{!$Component.pg.pb.cardForm.cardnumber}");
alert(inputBox.id);
//This alert is giving me the ID of the element correctly.
inputBox.onkeyup = function() {
alert(inputBox.value);
document.getElementById('printCardNo').innerHTML = inputBox.value;
};
});
});

How to get ID of listview item Clicked. [javascript / jquery / jquery mobile]

I need advice on how to detect which <li> is tap/click by the user, then write the 'ID' of the tap/clicked <li> into Localstorage, then use the saved Localstorage to retrieve data for Detail Page.
I'm new to javascript/jquery, if you can provide some simple example code will be very much appreciated.
I know how to write Localstorage, read Localstorage, get JSON data from server API, generate Loop for Listview with unique ID for each <li>.
What I need is, how to use JS to make <li> clickable (link to Detail Page) and write to Localstorage at the same time.
I have tried:
$('.liClass').click(function() { //block of code to write Localstorage };
But the <li> is not clickable and no key/value written to Localstorage. Not to mention to detect which <li> is clicked (this I have no idea).
Please advice, thank you.
Code update:
//Show restaurant listing - NOTE: This is not first page. Link from other Page.
$('#restaurantList').on("pagebeforecreate", function() {
$.getJSON("http://mydomain.com/api/restaurant", function( data ) {
function rstListing(data) {
if ($.isEmptyObject(data) === true) {
alert ('JSON return empty');
} else {
for (i=0; i<data.length; i++){
$('#restaurantListing').append('<li id="' + data[i].restaurant_id + '" class="rstList"><img src="http://mydomain.com/file/img/' + data[i].restaurant_logo + '"><h2>' + data[i].name + '</h2><p>' + data[i].city + '</p></li>');
$('#restaurantListing').listview('refresh');
}
}
}
rstListing(data);
}
);
});
//Listview link to Detail Page
$(document).ready(function(){
$('.rstList').click(function() {
var id = $(this).attr("id"); // Get the ID
alert(id);
console.log(id);
});
});
Also tried:
//Listview link to Detail Page
$('#restaurantList').on("pageload", function() {
$('.rstList').click(function() {
var id = $(this).attr("id"); // Get the ID
alert(id);
console.log(id);
});
});

You don't need to make any <li> element to be clickable by your self, when you add the click event to any element, that will be triggered when the item is clicked.
Your problem will basically be that the element is not loaded when the event is bind to it. So you have to add your code inside document ready event like this.
$(document).ready(function(){
$('.liClass').click(function() {
var id= $(this).attr("id"); // Get the ID
};
});

$('.liclick').click(function() {
alert($(this).attr("id"));//Get id of clicked li
localStorage.setItem($(this).attr("id"),$(this).attr("id")); //stored into localStorage
alert("Data from localStorage "+localStorage.getItem($(this).attr("id"))); // get stored id
});
Working Fiddle

You will need to use the event delegation to assign the click event since you are building the HTML DOM dynamically via JSON request, thus not being able to locate the 'li' elements at the time of the page load. So, it would look like:
$(document).on("click", ".rstList", function (event) {
// click event
}
See this link for more details:
jQuery event delegation

I have solved my problem with the example code provided by stackoverflow member here. My previous problem is because I separate the creation of the listview and bind the click listener in two different page event.
After testing the page event sequence, I'm now putting the click listener into the same page event instead of separate to two. Now my code look like this, hope this will help someone bump into the same problem as me:
//Show restaurant listing
$('#restaurantList').on("pagebeforecreate", function() {
alert('pagebeforecreate event triggered');
$.getJSON("http://mydomain.com/api/restaurant", function( data ) {
function rstListing(data) {
if ($.isEmptyObject(data) === true) {
alert ('JSON return empty');
} else {
for (i=0; i<data.length; i++){
$('#restaurantListing').append('<li id="' + data[i].restaurant_id + '" class="rstList"><img src="http://mydomain.com/file/img/' + data[i].restaurant_logo + '"><h2>' + data[i].name + '</h2><p>' + data[i].city + '</p></li>');
$('#restaurantListing').listview('refresh');
}
}
}
rstListing(data);
alert('rstListing() executed');
$('.rstList').click(function() {
alert($(this).attr("id"));//Get id of clicked li
localStorage.setItem($(this).attr("id"),$(this).attr("id")); //stored into localStorage
alert("Data from localStorage "+localStorage.getItem($(this).attr("id"))); // get stored id
});
}
);
});

Changing what function to call depending on which button is pressed

Okay So I what to have 3 buttons
<div id="button1" onclick="choose1()">Button1</div>
<div id="button2" onclick="choose2()">Button2</div>
<div id="button3" onclick="choose3()">Button3</div>
And a start button
<div id="startButton" onclick="noFunction()">Start</div>
I want to make it so that pressing on of the 3 option buttons it changes what function will be called from the start button and the background image of the start button should change.
Is there a way to do this with just javascript or do I need jquery?
It also doesn't seem possible to use onclick on div tags, jquery to do that aswell?

jsFiddle
You can use onclick on <div> tags. But you shouldn't use onclick on any tags. Don't confuse your HTML layout and display with your JavaScript functionality. Bind your click handlers directly in the JS code (note that this solution is using jQuery):
HTML:
<div id="button1">Button1</div>
<div id="button2">Button2</div>
<div id="button3">Button3</div>
<div id="startButton">Start</div>
JS:
function choose1() {
// ...
}
function choose2() {
// ...
}
function choose3() {
// ...
}
$(function() {
$("#button1").click(choose1);
$("#button2").click(choose2);
$("#button3").click(choose3);
});

You can do it in javascript (anything possible with jQuery is possible with plain javascript, since jQuery is written in javascript).
Changing the click handler for the startButton from javascript is very straightforward:
document.getElementById("startButton").onclick = newFunction;
Changing the background image is also pretty simple:
document.getElementById("startButton").style.backgroundImage = "image.png";
Obviously, you should replace newFunction and "image.png" with the function and image you actually want to use respectively.

You can say
function choose1() {
document.getElementById('startButton').onclick = function() {
alert("Button one was originally press");
}
}

jQuery IS javascript. It is just a library of functions/methods that you can call.
To solve your problem, you should write a function that changes the onclick property of your start button, and add the function you write to the onclick of the other buttons.
Like so:
function chooseOne(){
document.getElementById('startButton').onclick="/\*whatever\*/";
}
A technology like what #nbrooks said in the comments that would do this very well is AngularJS

If you give each selector button a class, you can use javascript to interate them and bind a click event. Then you can store in a data property a key which you can lookup in a json object start stores the related action handler and image. Finally in your click handler you can pull these properties and apply them to the start button by setting the onClick handler and background image of the start button.
<div class="startSelector" data-startdataid="1">Button1</div>
<div class="startSelector" data-startdataid="2">Button2</div>
<div class="startSelector" data-startdataid="3">Button3</div>
<div id="startButton">Start</div>
<script>
var startData = {
"1": {
action: function() {
alert("Button 1 was selected");
},
image: "/images/button1.jpg"
},"2": {
action: function() {
alert("Button 2 was selected");
},
image: "/images/button2.jpg"
},"3": {
action: function() {
alert("Button 3 was selected");
},
image: "/images/button3.jpg"
}
}
var changeStartButton = function(e) {
var startDataIndex = e.target.dataset.startdataid
var data = startData[startDataIndex]
document.getElementById("startButton").onclick = data.action
document.getElementById("startButton").style.backgroundImage = data.image
}
items = document.getElementsByClassName("startSelector")
for (var i = 0; i < items.length; i++) {
items[i].addEventListener("click", changeStartButton);
}
</script>
Example
http://jsfiddle.net/Xk8rv/3/

Detecting href click

Ok, so I have been trying for a few days now to figure out how to detect a user click, and assign new properties to a variable. I have attempted this in a few different ways most of them however not working.
So far I have this, which is pretty self explainitory.
var settings = {
objSlideTrigger: '#one', // link button id
objSlidePanel: '#content-one' // slide div class or id
};
if(document.getElementById('#one').click) {
var setup = settings;
setup.objSlideTrigger = '#one',
setup.objSlidePanel = '#content-one'
};
if(document.getElementById('#two').click) {
var setup = settings;
setup.objSlideTrigger = '#two',
setup.objSlidePanel = '#content-two'
};
when the user clicks a href on the page it I want it to be detected by the javascript and, for the correct setup to be placed within the settings var for use by the rest of the code.
I have two questions really the first being, I will have to duplicate the conditional statement at least ten times so is there anyway to condense/simplify the code.
secondly,When detecting a Href click in javascript do i have to assign an onclick value to the actual element in the html?
thanks again.

With jQuery
Assuming you're wanting to use jQuery because you've included it at the top, use:
$(document).on('click', '#one', function( event ) {
//Do Code here
//For #one click event
});
Although, to prevent DRY - keep it more generic by using Classes:
<div class="updatesettings" id="one">One</a>
<div class="updatesettings" id="two">Two</a>
<script>
$(document).on('click', '.updatesettings', function( event ) {
//Do Code here
//For all .updatesettings click event
alert( $(this).attr('id') );
});
</script>
With JavaScript
var OnOneClick = function() {
// Your click handler
};
var OneClick = document.getElementsById("#one");
OneClick.addEventListener('click', OnOneClick, false);
Then to listen for multiple, use by Class (Although not all IE versions can listen for this):
var AwaitedClickEvent = function() {
//Class Click
}
var WaitingClick = document.getElementsByClassName('clickme');
for (var i = 0; i < WaitingClick.length; i++) {
var current = WaitingClick[i];
current.addEventListener('click', AwaitedClickEvent, false);
}
Your Solution
<!-- Links with ID & Content -->
<div class="updatesettings" id="one" data-content="content-one">One</a>
<div class="updatesettings" id="two" data-content="content-two">Two</a>
<script>
/**
* Get the clicked element's ID
* and it's stored data-content string.
**/
$('.updatesettings').on('click', function( event ) {
var Id = $(this).attr('id'),
Content = $(this).data('content'),
setup = settings,
setup.objSlideTrigger = Id,
setup.objSlidePenl = Content;
console.log( setup );
});
</script>