Develop Reference

onclick generates invalid function

I have a variable that is attached to a function. I am trying to use that variable in an onclick event.
This is what I am doing
var show = function() {
console.log("hello");
};
$(container).append(
"<div class='info' onclick=" + show + ">Show</div>"
);
However the generated html comes out like this
<div class="info" onclick="function()" {="" console.log("hello");="" }="">
Show
</div>
Any idea how I can fix this so that when I click the div my function gets called ?

You can simply do like this, Just make show a function and call it on click.
This will work
<script>
function show() {
console.log("hello");
}
$(container).append(
'<div class="info" onclick="show()">Show</div>'
);
</script>

This is kind of an unusual approach to what you're trying to do. I think it would be more idiomatic in jQuery to either
a) define the element first, with event handler, and then append it,
$("<div>Show</div>", {
"class": "info",
on: {
click: function(e) {
console.log("Hello");
}
}
}).appendTo($(container));
or
b) append a new element and then add an event handler to it after appending it.
$(container).append("<div class='info'>Show</div>");
$(container).children('.info').last().on('click', function(e) { console.log("Hello"); });
Between those two, I'd recommend the first in this case.

The variable show is a function, Then how can you bind it with string?
The code should be like,
$(container).append("<div class='info' onClick='show()'>Show</div>");

try using :
var show = function() {
console.log("hello");
};
$(container).append("<div class='info' onclick="+'show()'+">Show</div>");
This will work.
The reason why your code
var show = function() {
console.log("hello");
};
$(container).append("<div class='info' onclick=" + show + ">Show</div>");
was not working as required as show is an object of type function, so when one uses the function name without the () the variable is replaced bu the code that it consists.
Hope it helps.

Is it a scope issue?

I add a close button to the card. I try this code but the close button seems not working.
$('#add-pet').on('click', e => {
// Grab info from the form
let $name = $('#pet-name').val();
let $species = $('#pet-species').val();
let $notes = $('#pet-notes').val();
let $newPet = $(
'<section class="six columns"><div class="card"><p><strong>Name:</strong> ' + $name +
'</p><p><strong>Species:</strong> ' + $species +
'</p><p><strong>Notes:</strong> ' + $notes +
'</p><span class="close">×</span></div></section>'
);
// Attach the new element to the page
$('#posted-pets').append($newPet);
});
$('.close').on('click', function() {
$(this).parent().remove();
});
However, when I move this code:
$('.close').on('click', function() {
$(this).parent().remove();
});
right after the $('#posted-pets').append($newPet);
Then it works OK.
Why it is like that?

Whenever you want to make an event for an element which may be appended via jquery, you can try:
$(document).on('click', '.close', function() {
$(this).parent().remove();
});
It works after you appending span.close tag. Even if outside the scope
$('#add-pet').on('click', /*...*/);
Update:
You can also try:
$('#add-pet').on('click', e => {
let close_tag = $('<span>').addClass('close');
// do stuff...
// set event
close_tag.on('click', function () {
$(this).parent().remove();
});
$('#posted-pets').append(close_tag);
});

When the close function is outside of the div, it's trying to attach to existing .close elements and the element you are trying to attach to doesn't exist at that point in time. You need to do it inside because you need to have the $newPet element actually created before you can attach to it.

$('.close') will search in the dom.
If you haven't appended your html, then it can't be found by jQuery

Attempting to loop and print an element in jQuery

I am attempting to loop through a dynamic element and then print it with jquery,
Heres the code i use
$('.recipe-steps #addNewStep').on('click', function () {
var s = $('.recipe-steps .step').size() + 1;
$('<div class="step pure-u-1-1"><textarea id="step" name="step_detail[]" class="pure-u-1" placeholder="Step ' + s + '"></textarea>×</div>').appendTo($('.recipe-steps .steps'));
return false;
});
$(document).on('click', '.step .remove', function () {
$(this).parents('.step').remove();
return false;
});
however its only printing out the first element and not the preceding ones. I have created a fiddle can anyone see why?
http://jsfiddle.net/drk8X/

I wasn't able to come up with the perfect solution (will have a look later) but I have redesigned the function to work to an extent.
$("body").on('input propertychange', function () {
var outputme="";
$('textarea').each(function (index) {
outputme+='<br>'+(index+1) + '. ' + $(this).val();
});
$('#lp-step').html('<h3>Method</h3>'+outputme);
});
This will update the "preview" on change of the text area, use CSS Selectors to narrow down the scope, but id reccomend you looking at your HTML and try and simplify it a bit more.
http://jsfiddle.net/drk8X/2/

Table onclick rows jQuery

I've a table whose content is getting generated via an AJAX success response.
HTML code
<table class="table table-hover" id="table_content"></table>
AJAX code
$.ajax({
dataType: "json",
type : "POST",
url: "/configuration/",
data : { 'selected_item' : selected_item_id },
success : function(result){
var table_heading = "<tr>"
var table_content = ""
for (var heads in result[1]){
table_heading +="<th style='background-color:#f1f1f1;'>" + result[1][heads] + "</th>"
}
for (var region in result[0]){
table_content += "<tr>"
for (var details in result[0][region]){
table_content += "<td>" + result[0][region][details] + "</td>"
}
}
table_content = table_heading + table_content
$("#table_content").html(table_content)
},
});
I want to apply an onclick function to it. Like this:-
Onclick function code
$(function(){
$('#table_content tr').click(function () {
$('.test').slideUp(0)
$(this).append(($('.test')).slideDown('slow'));
});
});
The issue that I'm facing is that I'm not able to click the row, if I generate the content via AJAX response. If I create a table inside the HTML itself, it'll work, but not when the table is created via AJAX response.
What's the problem? Please sugggest.
EDITED
What I'm trying to achieve is that a div should be slide down just below the row upon clicking the row. I does works for the first time when the data gets generated via AJAX. but it does not works when I'm generating data after the first time, though the event is triggered but $('.test').slideUp(0) $(this).append(($('.test')).slideDown('slow')); does not works after the first time. Nor any error is popped . See http://jsfiddle.net/fVz6D/5/

Updated:
See working demo: http://jsfiddle.net/c5FgG/1/
Your problem was that you attached the test div element to a table row, which dissapeared after repopulating the table. Instead, clone the test div on each click when you are changing the table content, and use the clone instead the original.
Old answer:
Add the onclick function code inside the ajax success function. It works out for me this way:
...
$("#table_content").html(table_content);
$('#table_content tr').click(function () {
alert("Clicked");
//your code
});
...
And don't forget to close the table rows with:
table_content += "</tr>";

The way you are using click to bind the event only binds the event to elements that are present in DOM at time the binding code is executed. You need event delegation for binding event with dynamically generated html elements using on().
$(function(){
$('#table_content').on('click', 'tr', function () {
$('.test').slideUp(0)
$(this).append(($('.test')).slideDown('slow'));
});
});
Delegated events
Delegated events have the advantage that they can process events from
descendant elements that are added to the document at a later time. By
picking an element that is guaranteed to be present at the time the
delegated event handler is attached, you can use delegated events to
avoid the need to frequently attach and remove event handlers, reference.

Try
$(function(){
$('#table_content').on('click', 'tr', function () {
$('.test').slideUp(0)
$(this).append(($('.test')).slideDown('slow'));
});
});
The on() handler should work on newly created elements too.

$(function(){
$('#table_content').on('click', 'tr', function () {
$('.test').slideUp(0)
$(this).append(($('.test')).slideDown('slow'));
});
});
Here Is a list of fiddles :
fiddle1
fiddle2
fiddle3
fiddle4
You can use it as per your requirement.

Use on() for dynamically added elements like,
$('#table_content').on('click',' tr', function () {
$('.test').slideUp(0)
$(this).append(($('.test')).slideDown('slow'));
});
Updated your div will move to tr which you clicked, so when you click on list it will generate new content in table so your div.test will be removed from HTML, thats why you are not getting the desc div again.
To solve this problem you have to add div.desc again in clicking of list like,
if(!$('body > div.test').length){
$("body").append('<div class="test">You slide down a row with content xyz</div>');
}
Full code
$('#list').on('click', 'li', function () {
var id = this.id;
var table_content = "";
// IF id=1,2,3,4,5 Code
$("#table_content").html(table_content);
// add below code foe div.desc
if (!$('body > div.test').length) {
$("body").append('<div class="test">You slide down a row with content xyz</div>');
}
});
Demo
Alternatively, you can use clone() like,
$(function () {
$('#table_content').on('click', 'tr', function () {
$clone=$('.test:not(.new-test)').clone();// clone the first test class element
$('.new-test').remove();// remove the cloned elements
$clone.addClass('new-test').appendTo('body');// add the clone to body
$clone.slideUp(0);// playing with clone now
$(this).append($clone.slideDown('slow'));
});
});
Working demo

Jquery click event no longer bound for newly created tags

Please see the following
fiddle
I am using .on but it seems that the click event doesn't apply for newly created items.
How can the new items also listen to the on click event?
$("#addNewAddresses").on("click", function () {
console.log("adding an address");
var $table = $(this).parent().find("table");
var html = "<tr class='item'>";
html += "<td class='city'>";
html += "<input id='City' class='inputStylized' type='text' placeholder='City'>";
html += "</td>";
html += " </tr>"
$(html).appendTo($table);
});
$(".city").on("click", function () {
console.log("city was clicked");
});

You have to delegate the event to the static closest parent or to the document itself like below:
$("#address-table").on("click", ".city", function () {
console.log("city was clicked");
});
You can delegate to document this way:
$(document).on("click", ".city", function () {
console.log("city was clicked");
});
Demo fiddle

Just put this :
$(".city").on("click", function () {
console.log("city was clicked");
});
after .appendTo so the event will be set for the new appended input :)
JSFiddle