I am trying to append to a link with id a value that is entered from the input text field. I came this far searching stackoverflow but id doesn't work!
<script type="text/javascript">
jQuery(function(){
$("#txt_name").keypress(function() {
var value = $("#txt_name").val();
});
$("a#coupon_link").attr("href", function(i) {
return href + '&discount_code='.text(value);
});
});
</script>
and this is how the html looks like
<form>
<fieldset>
<input id="txt_name" type="text" value="discount" />
</fieldset>
</form>
<a id="coupon_link" href="https://www.e-junkie.com/ecom/gb.php?c=cart&i=XXXXXX&cl=YYYYYY&ejc=2" target="ej_ejc" class="ec_ejc_thkbx" onClick="javascript:return EJEJC_lc(this);"><img src="http://www.e-junkie.com/ej/ej_add_to_cart.gif" border="0" alt="Add to Cart"/></a>
You probably meant this:
$(function() {
$("#coupon_link").on('click', function(e) {
e.preventDefault(); // apparently not needed
location.href = $(this).attr('href') + '&discount_code=' + encodeURIComponent($('#txt_name').val());
});
});
You don't have to update the value of #txt_name on keypress; you only have to use the value when the link is pressed.
Fix your code like this :
$(function(){
$("#txt_name").keypress(function() {
var value = $("#txt_name").val();
var link = $("#coupon_link");
var originalHref = link.attr('originalHref');
if (!originalHref) {
originalHref = link.attr("href");
link.attr("originalHref", originalHref)
}
link.attr("href", originalHref + '&discount_code='+value);
});
});
A few things to note :
never add anything to a selector when you're targeting an element by ID
your value variable wasn't in the same scope
the return of val can be directly concatenated, you don't need to try to change it to text
you don't need to pass a function to attr in your case
you're trying to make the href grow with every key stroke. This is a bad idea. The solution I propose is to keep the original href
if you're not sure the original href has yet some parameters (i.e. has '?') you should test it (I let you do that)
Overall a much cleaner solution wouldn't be to change the link but to build the href on click on the link :
$("#coupon_link").click(function(e) {
location = this.href + '&discount_code=' + $('#txt_name').val();
});
Not sure to understand, but it looks like a scope issue try this javascript :
<script type="text/javascript">
jQuery(function(){
var value = 0;
$("#txt_name").keypress(function() {
value = $("#txt_name").val();
$("a#coupon_link").attr("href", function(i) {
return href + '&discount_code=' + encodeURIComponent(value);
});
});
});
</script>
Try this:
jQuery(function(){
$("#txt_name").keypress(function() {
var value = $("#txt_name").val();
$("a#coupon_link").attr("href", '&discount_code=' + String(value));
});
});
This isnt working because the href isnt being changed as the function is called before a keypress event is triggered. Look into replacing keypress with blur and update the href when blur() is called
i think you need this:
<script type="text/javascript">
$(function(){
$("#txt_name").keypress(function() {
var value = $("#txt_name").val();
$("a#coupon_link").attr("href",href+'&discount_code='+value.toString);
});
});
</script>
look at href don't know where you have that var, if it is needed ok else remove that
You probably need to change the href when a key has been pressed, not only on page load. To do so you will have to do the replacing of the href inside the keyup function, like so:
$(function(){
var link = $("a#coupon_link");
link.data('href', link.attr("href"));
$("#txt_name").on('keyup', function() {
link.attr("href", link.data('href') + '&discount_code='+ this.value);
});
});
So as to not append the &discount_code=*** several times, you need to store the original href somewhere, like in a data attribute.
this one worked for me getting value from input field and append it to the existing link using jquery.
$('#qty').on('keyup', function() {
var theQty = 0;
theQty = $("#qty").val();
var oldHref=$("a#buybtn").attr("href");
$("a#buybtn").attr("href",oldHref+ '&qty=' + String(theQty));
});
Related
I'd like to know how to append link values to an input box. But I can't figure out how to append a new link value to the old one, separated by a space [Fiddle].
<input id="a_input_id" type="text">
<a href="" class="special_field_link">#ABC<a>
<a href="" class="special_field_link">#DEF<a>
<script>
$(function(){
$('.special_field_link').live('click', function()
{
$('#a_input_id').val($(this).html() + '');
return false;
});
});
Should I use something like:
var cur_val = $('#a_input_id').val($(this).html() + '');
if(cur_val)
$('#a_input_id').val(cur_val + "," + new_val);
else
$('#a_input_id').val(new_val);
Your help would be appreciate.
You can use like this,
$('.special_field_link').click(function (e) {
e.preventDefault();
$('#a_input_id').val($('#a_input_id').val()+" "+$(this).html());
});
Use event.preventDefault() to prevent the default click event of anchor. In each click you need to get the current input value, if you want to retain those. In your code, it was overwriting the old with the new values.
Fiddle
If you want to append the value, you could do:
var input = $('#a_input_id');
input.val(input.val() + $(this).html());
And note .live is deprecated, you'd better use .on instead if you switch to a new version of jQuery.
THE DEMO.
You could go with:
http://fiddle.jshell.net/s8nUh/149/
$(function()
{
$('.special_field_link').live('click', function()
{
var original = $('#a_input_id').val();
var val = original + ',' + $(this).html();
val = val.replace(/(^,)|(,$)/g, "");
$('#a_input_id').val(val);
return false;
});
});
$(function(){
$('.special_field_link').live('click', function()
{
$('#a_input_id').val($('#a_input_id').val() + $(this).html() + '');
return false;
});
});
To use best practices, its better to cache jquery object for anchor and also avoid using return false.
$(function(){
var txt$ = $('#a_input_id');
$('.special_field_link').live('click', function()
{
txt$.val(txt$.val() + $(this).html());
event.preventDefault();
});
});
I have a textarea like so,
<textarea id="txtaFilter" cols="45" rows="5"></textarea>
and the following script,
$(document).ready(function () {
$(".selector").bind('change', function () {
var value = $(this).val();
$("#txtaFilter").val($("#txtaFilter").val() + value);
$(this).children('option:eq(0)').prop('selected', true);
});
});
where ".selector" is a class applied to two dropdownlists.
When I chose a value on the dropdown, it appears to do nothing, but after looking at the debugger in chrome it is changing the value just not displaying it.
Does anyone know why this is? Is there something special I'm missing about the .val() property?
Problem/Solution:
I forgot that there are multiple "#txtaFilter"'s on the page when I removed the $(this).siblings("#txtaFilter"), So it was accessing the hidden one instead of the visible one. Sorry about that, guess I was wrong on the question too :/
You can use val method:
$("#txtaFilter").val(function(i, oldVal){
return oldVal + value
});
Use .val() to get the text of a textarea.
$(document).ready(function () {
$(".selector").bind('change', function () {
var value = $(this).val();
var txtaFilter = $("#txtaFilter");
txtaFilter.val(txtaFilter.val()+value);
$(this).children('option:eq(0)').attr('selected', true);
});
});
I'm trying to make a FadeOut effect after clicking a link. But my syntax seems to be wrong. When i click, it fadeout, and go to a "~~nothing~~.html" page, it just dont get the value to compose the variable.
the id boo is attached to the tag (body id="boo") and in the css stylesheet the id #boo is set to display:none;
I'm using jquery-1.7.2.min
<script type="text/javascript">
$(document).ready(function(){
$('#go').click(function(e) { //When something with the id 'go' is clicked,
e.preventDefault(); //Prevent default action (?)
var url = $('#go').val() + ".html"; //set url as "Clicked 'go' value + .html" (374.html"
$('#boo').fadeOut(600, function() { window.location.href = url; }); //fadeOut what is with the 'boo' id (body), and load the created address as a new page (?)
});
});
</script>
<a id="go" value="374" href="#">Go to page 374</a>
the 374.html page is in the same folder. If possible, please explain what have i done wrong, and make it step by step. I'm new to jquery.
Thank you!
the .val() method only applies to fields, just putting a value attribute on any element will not be read with the val() method.
Instead use .attr('value').
Or, its better practice to use data-* attributes and use the data() method:
<script type="text/javascript">
$(document).ready(function(){
$('#go').click(function(e) { //When something with the id 'go' is clicked,
e.preventDefault(); //Prevent default action (?)
var url = $('#go').data('value') + ".html"; //set url as "Clicked 'go' value + .html" (374.html"
$('#boo').fadeOut(600, function() { window.location.href = url; }); //fadeOut what is with the 'boo' id (body), and load the created address as a new page (?)
});
});
</script>
<a id="go" data-value="374" href="#">Go to page 374</a>
The val() function won't give you that value from an anchor tag, use attr("value") to get the valuue of the a tag
$(document).ready(function(){
$('#go').click(function(e) {
e.preventDefault();
var url = $('#go').attr("value") + ".html";
alert(url)
$('#boo').fadeOut(600, function() {
window.location.href = url;
});
});
});
Alternatively, you can use HTML 5 data attribute to store such kind of value
<a id="go" data-someValue="374" href="#">Go to page 374</a>
And you can access it in javascript like
var someVal=$("#go").data("someValue");
sample http://jsfiddle.net/LyPZB/1/
The a tag doesn't support the attribute value, you should do like this:
set the anchor like this
<a id="go" data-page="374" href="#">...
(data-xxx are custom attributes)
and get its value with
$('#go').data('page')
In this way it will work and you will respect the HTML standard (since the anchor shouldn't have the value attribute)
Try:
var url = $('#go').attr("value") + ".html";
instead of
var url = $('#go').val() + ".html";
From the jQuery docs -
The .val() method is primarily used to get the values of form elements
such as input, select and textarea. In the case of elements, the .val() method returns an array
containing each selected option; if no option is selected, it returns
null.
There's an example here - http://jsfiddle.net/A8ArH/
I am developing an application using JQuery. This is a fragment of the HTML code I am using:
<MarkNag class="altcheckboxoff" id="markable_38" Azpimark_id="100038">helburua </MarkNag>
<MarkNag class="altcheckboxoff" id="markable_2" Azpimark_id="100002">Oriolek </MarkNag>
<MarkNag class="altcheckboxoff" id="markable_39" Azpimark_id="100039">gas liberalizazioa </MarkNag>
I have the next JQuery script in the HTML page:
<script type='text/javascript'>
$("MarkNag").click(function (){
$(this).toggleClass("highlight");
});
</script>
I would like to know how could I store "markable_39" in a variable if this MarkNag tag was clicked. I guess I should use .data(). But I dont really know how. Any ideas? Thanks
Do it like this
$("MarkNag").click(function ()
{
$(this).toggleClass("highlight");
var IdOfTag = this.id;
//or
IdOfTag = $(this).attr('id');
});
Also, you can just use this.id,
like:
var id = this.id;
Actually, the correct code would be $(this).attr("id").
$("MarkNag").click(function (){
$(this).toggleClass("highlight");
alert(this.id); // Method 1: this.id
alert($(this).attr('id')); // Method 2: $(this).attr('id')
});
here u will get object from where the event occurs
var eventobject = arguments.callee.caller.arguments[0];
here u can access any attribute of currentTarget (in this case id)
var id = $(eventobject.currentTarget).attr("id");
I have an anchor tag that has an href. I need to add a string after the last / in the href from an input text box. I have tried to add the value of the input box to the href with no success. Can I add the value to the link string using the onclick event? How can this get accomplish using jquery? Here is the code:
//This is the Search Button
$('#switch-fighter-search-button-link').attr("href","/fighters/search/");
//This is the Input box
var sft = $('$switch-fighter-text').val();
This way it'll take the href of the original link and add the value of the element with id "switch-fighter-text"
$('#switch-fighter-search-button-link').click(function(){
window.location=$(this).attr("href")+$('#switch-fighter-text').val();
return false;
});
Not exactly sure what you're trying to do here but if you could provide more code that would be useful. Here's an example of what I think you might be trying to do:
<script type="text/javascript>
$('#submit').click(function(){
var $link = $('#link1');
//add to the href
$link.attr('href', $link.attr('href') + "?id=1");
});
//note that if you want to prevent the link from submitting do like so
$('#link1').click(function(){
//force redirect to a specific url, adding to the href on the fly
window.location = $(this).attr('href') + "&user=me";
return false; //prevents href from changing window.location
});
</script>
<body>
<input id="submit1" type="Submit" value="Submit"></input>
<a id="link1" href="somelink/test.html">Link</a>
</body>
Something like this should work:
$('$switch-fighter-text').change(function() {
var link = $('#switch-fighter-search-button-link');
link.attr('href', link.attr('href') + $(this).val());
});
$('#switch-fighter-search-button-link').attr("href", $('#switch-fighter-search-button-link').attr("href") + $('$switch-fighter-text').val() );
This will add your textbox's value to the already existing href src
but i think that can change the href src after you clicked on the page will not work.
So use
onclick=" window.location='"' + $('#switch-fighter-search-button-link').attr("href") + $('$switch-fighter-text').val(); + '"'; "
$('#switch-fighter-search-button-link').click(function(){
window.location="/fighters/search/"+$('$switch-fighter-text').val();
return false;
});