Develop Reference

jQuery or javascript prevent event from input keypress

CODE:
var appender = $('<input class="form-control" placeholder="Search" id="search_made" type="text">')
appender.find('#search_made').on('keypress', function(e) {
e.preventDefault()
console.log('keypress!')
if (e.keyCode == 13 && !e.shiftKey) {
console.log('not shift enter')
var passed_value = $(this).val()
if (passed_value === '') {
console.log('nothing was passed on input tag')
return false;
}
console.log('passed value: ' + passed_value)
}
})
$('body').append(appender)
I want to add input tag dynamically by jQuery.
Using those code, I can only add input tag seemingly but other functions that has to be bound was not bound well.
So when I type some words on input tag and click enter key, It refreshes page but does not execute any console.log() lines.
How can I fix it to make it do other bound functions(include console.log()) well?

Change the selector from:
appender.find('#search_made').on('keypress', function(e) {
To
$(document).on('keypress','#search_made', function(e) {
OR: Simply
appender.on('keypress', function(e) {
Working Code Example:
var appender = $('<input class="form-control" placeholder="Search" id="search_made" type="text">')
$(document).on('keypress','#search_made', function(e) {
e.preventDefault()
console.log('keypress!')
if (e.keyCode == 13 && !e.shiftKey) {
console.log('not shift enter')
var passed_value = $(this).val()
if (passed_value === '') {
console.log('nothing was passed on input tag')
return false;
}
console.log('passed value: ' + passed_value)
}
})
$('body').append(appender)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

Edit HTML text on click

I would like to change text to input text by clicking on it :
Currently I've:
<div class="wrapper">
<span class="text-content">Double Click On Me!</span>
</div>
And in javascript:
//plugin to make any element text editable
$.fn.extend({
editable: function () {
$(this).each(function () {
var $el = $(this),
$edittextbox = $('<input type="text"></input>').css('min-width', $el.width()),
submitChanges = function () {
if ($edittextbox.val() !== '') {
$el.html($edittextbox.val());
$el.show();
$el.trigger('editsubmit', [$el.html()]);
$(document).unbind('click', submitChanges);
$edittextbox.detach();
}
},
tempVal;
$edittextbox.click(function (event) {
event.stopPropagation();
});
$el.dblclick(function (e) {
tempVal = $el.html();
$edittextbox.val(tempVal).insertBefore(this)
.bind('keypress', function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code == 13) {
submitChanges();
}
}).select();
$el.hide();
$(document).click(submitChanges);
});
});
return this;
}
});
//implement plugin
$('.text-content').editable().on('editsubmit', function (event, val) {
console.log('text changed to ' + val);
});
But I don't know how to change double click on simple click ! I've tried to replace $el.dblclick(...) by $el.click(), but it doesn't work.
Is anybody have a solution ?

When you just change $el.dblclick to $el.click it will also handled with $(document).click(submitChanges); event. So $el.click handler should return false to stop further event processing.
$el.click(function (e) { // <---------- click
tempVal = $el.html();
$edittextbox.val(tempVal).insertBefore(this).bind('keypress', function (e) {
var code = (e.keyCode ? e.keyCode : e.which);
if (code == 13) {
submitChanges();
}
}).select();
$el.hide();
$(document).click(submitChanges);
return false; // <------------------------ stop further event handling
});
http://jsfiddle.net/zvm8a7cr/

You may use the contenteditable attribute of html
var initialContent = $('.text-content').html();
$('.text-content')
.on('blur', function(){
if(initialContent != $(this).html())
alert($(this).text());
if($(this).html() == ''){
$(this).html(initialContent);
}
})
.on('click', function(){
if(initialContent == $(this).html()) {
$(this).html('');
}
});;
.text-content {
border: 1px solid black;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="wrapper">
<span contenteditable="true" class="text-content">Click On Me!</span>
</div>

Search without submit button with jquery

I need to add class to the input element in Opencart search(in header.tpl)
HTML CODE:
<input type="text" name="search" id="input-search" class=""/>
JQUERY CODE:
<script type="text/javascript">
$(document).ready(function() {
$("#input-search").keyup(function (e) {
if (e.keyCode == 13) {
$("#input-search").addClass("button-search");
}
});
});
</script>
I am using Opencart and to redirect to the search page you have to have the class .button-search. I don't want to have a submit button.
When I add some text to the input and then when I press Enter the script should add class to the input and redirect to the Opencart search page.

Here is what you want buddy.
code: http://jsfiddle.net/webcarvers/xdt7g/1/
preview: http://jsfiddle.net/webcarvers/xdt7g/1/embedded/result/
HTML
JS
$("#inputSearch").on('keypress',function (e) {
if (e.keyCode == 13) {
$("#inputSearch").addClass("buttonSearch");
$("p").text("Class added = " + $("#inputSearch").attr("class"));
window.location.replace("http://www.yahoo.com/")
}
});

When the button is inside a form you can submit it:
<script type="text/javascript">
$(document).ready(function() {
$("#input-search").keyup(function (e) {
if (e.keyCode == 13) {
$("#input-search").addClass("button-search");
$(this).closest('form').submit();
}
});
});
</script>

You need to use event delegation method like below:
$('body').on('keyup','#input-search', function (e) {
if (e.keyCode == 13) {
$(this).addClass("button-search");
}
});

If all you want to do is redirect to a page with the value from the input you can do the following window.location.href = "?search=" + this.value;
Your code will be like:
<script type="text/javascript">
$(document).ready(function() {
$("#input-search").keyup(function (e) {
var kc = e.keyCode || e.which;
if (kc == 13) {
$("#input-search").addClass("button-search");
window.location.href = "?search=" + this.value;
}
});
});
</script>

you can change to this:
<script type="text/javascript">
$(document).ready(function() {
$("#input-search").keyup(function (e) {
var kc = e.keyCode || e.which;
if (kc == 13) {
$(this).addClass("button-search");// get the current context with 'this'
window.location.href = "../yoursearchpageurl?" + $(this).serialize();
}
});
});
</script>
As you mentioned that you don't have a form in your page so when you add the class to your button then just after that you can change your page url as suggested with $(this).serialize()

JQuery Check if input is empty not checking onload?

I am using this code to check if an inputbox is empty or not and it works fine but it only checks check a key is press not when the page loads.
It's does what it should but I also want it to check the status when the page loads.
Here is the current code:
$('#myID').on('keyup keydown keypress change paste', function() {
if ($(this).val() == '') {
$('#status').removeClass('required_ok').addClass('ok');
} else {
$('#status').addClass('required_ok').removeClass('not_ok');
}
});

Try the following:
$(function() {
var element = $('#myID');
var toggleClasses = function() {
if (element.val() == '') {
$('#status').removeClass('required_ok').addClass('ok');
} else {
$('#status').addClass('required_ok').removeClass('not_ok');
}
};
element.on('keyup keydown keypress change paste', function() {
toggleClasses(); // Still toggles the classes on any of the above events
});
toggleClasses(); // and also on document ready
});

The simplest way to do is trigger any of the keyup,keydown etc event on page load. It will then automatically call your specific handler
$(document).ready(function(){
$("#myID").trigger('keyup');
});

try checking the value on a doc ready:
$(function() {
if ($('#myID').val() == '') {
$('#status').removeClass('required_ok').addClass('ok');
} else {
$('#status').addClass('required_ok').removeClass('not_ok');
}
});
EDIT: just as an update to this answer, a nicer approach might be to use toggle class, set up in doc ready then trigger the event to run on page load.
function check() {
var $status = $('#status');
if ($(this).val()) {
$status.toggleClass('required_ok').toggleClass('ok');
} else {
$status.toggleClass('required_ok').toggleClass('not_ok');
}
}
$(function () {
$('#myID').on('keyup keydown keypress change paste', check);
$('#myID').trigger('change');
});

Well then why dont just check the field after the page is loaded?
$(document).ready(function(){
if ($('#myID').val() == '') {
$('#status').removeClass('required_ok').addClass('ok');
} else {
$('#status').addClass('required_ok').removeClass('not_ok');
}
});

$(document).ready(function(){
var checkVal = $("myID").val();
if(checkVal==''){
$('#status').removeClass('required_ok').addClass('ok');
}
else{
$('#status').addClass('required_ok').removeClass('not_ok');
}
});

How to disable Enter/Return Key After a function is executed because of it?

I have this function where #text_comment is the ID of a textarea:
$('#text_comment').live('keypress',function (e) {
if(e.keyCode == 13) {
textbox = $(this);
text_value = $(textbox).val();
if(text_value.length > 0) {
$(this).prev().append('<div id="user_commenst">'+text_value+'</div>');
$(textbox).val("");
}
}
});
What is happening is the text is appending when the enter/return key is hit (keyCode 13), but it is also moving the text a line down, as the enter/return key is supposed to.
This is occurring even though I set the value of the textbox to "".

How about event.preventDefault()

Try and stop your event propagation (See http://snipplr.com/view/19684/stop-event-propagations/) when entering the if(e.keyCode == 13) case.

try this one event.stopImmediatePropagation()
$('#text_comment').live('keypress',function (e) {
if(e.keyCode == 13) {
e.stopImmediatePropagation()
///rest of your code
}
});

I've tested this out, this works. The enter does not create a new line.
$('#text_comment').live('keypress',function (e) {
if(e.keyCode == 13) {
textbox = $(this);
text_value = $(textbox).val();
if(text_value.length > 0) {
$(this).prev().append('<div id="user_commenst">'+text_value+'</div>');
$(textbox).val("");
}
return false;
}
});
Although I am wondering, if you don't want to ever have a new line, why are you using a textarea, why not use a input type='text' instead ?

Answer here http://jsfiddle.net/Z9KMb/