I'm trying to have JavaScript count one set of checkboxes and not count a set of checkboxes.
Right now I have the following JavaScript code:
function updateCount {
var count = $("input[type=checkbox]:checked").size();
$("#count").text(count);
};
});
Here are my checkboxes:
<input type="checkbox" name="checkbox_1">Checkbox 1
<input type="checkbox" name="checkbox_2">Checkbox 2
So basically with my JavaScript is there a way to only count the first checkbox but not the second checkbox.
If you're able to modify the HTML of your checkboxes, I would group them using a class.
<input class="countThis" type="checkbox" name="checkbox_1">Checkbox 1
<input class="countThis" type="checkbox" name="checkbox_2">Checkbox 2
And just leave that class off anything you don't want to count
<input type="checkbox" name="checkbox_3">Checkbox 3
<input type="checkbox" name="checkbox_4">Checkbox 4
And finally, your function would just look like this
function updateCount {
var count = $(".countThis:checked").size();
$("#count").text(count);
};
There are two easy ways to do this.
First, if you want to pick which checkbox to count:
$('input[type=checkbox][name="checkbox_1"]').length
Second, if you want to pick which checkbox to exclude:
$('input[type=checkbox][name!="checkbox_2"]').length
If you always need just the first element you can do it using :first-of-type selector:
$( "input[type='checkbox']:first-of-type" ).prop({
checked: true
});
Related
im working on a small app but i cant resolve this
im trying to use jQuery to append checked radio to the form , i did try alot of solution but i did fail
i wrote the code here , hope someone can help me to resolve this issue
<div class="radio">
<label>
<input type="radio" name="optionsRadios" id="optionsRadios" value="interior">
Interior
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="optionsRadios" id="optionsRadios" value="exterior">
Exterior
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="optionsRadios" id="optionsRadios" value="interio+exterior">
Interior si exterior
</label>
</div>
Here data was fetchted using json and i have the right result
<script>
$.each(data, function (k, v) {
typdespal = v.typdespal;
// the problem is that always i cant get the radio checked in the right position from the database
// $('#optionsRadios').val(typdespal);
$("input:radio[name='optionsRadios']").val(typdespal).prop( "checked", true );;
</script>
You can use filter() to find the correct radio button with value then set its property to checked.
$("input:radio[name='optionsRadios']").filter(function(){
return $(this).val() === typdespal
}).prop( "checked", true);
First, you need to wrap this all in a Document.Ready call. Then you need to only apply the checked function to the checkbox which contains the appropriate value. At the minute you are setting the value of all optionsRadios. You can do this with the prop function overload:
$(function() { // DOM ready
$("input:radio[name='optionsRadios']").prop("checked", function() {
// Only set the checked value when this checkbox value === the corresponding data value
var val = $(this).val();
return val === data[val].typdespal;
});
});
Note: I think I'm reading your data object right, hard to tell without seeing it :)
Firstly, several radio buttons may have same name, but not ID. So make them unique. Secondly, try to change your selector to:
$("input:radio[value='"+typdespal+"']").prop( "checked", true );
I am trying to check if the value string of a text input field contains any matches that correspond with the values of multiple checkbox inputs. If a checkbox's value is found as a match within the text input's value string, that checkbox should be checked, while any unmatching checkbox should remain unchecked. With the code below, all of the checkboxes show up checked, while only one of the checkbox's value is a match for the text input's value string.
jQuery
$("input[type='checkbox'][name='hello']").each(function(){
var value = $(this).attr('value');
var id = $(this).attr('id');
if ($("input[type='text'][name='goodbye']:contains("+value+")")) {
$("input[id="+id+"]").prop('checked', true);
}
});
HTML
<input type="checkbox" name="hello" id="1" value="1"><label for="1">one</label>
<input type="checkbox" name="hello" id="2" value="2"><label for="2">two</label>
<input type="checkbox" name="hello" id="3" value="3"><label for="3">three</label>
<input type="text" name="goodbye" id="goodbye" value="1">
If you just want to do a text compare the following should work
$("input[type='checkbox'][name='hello']").each(function () {
var value = $(this).val();
if ($('#goodbye').val().indexOf(value) >= 0) {
$(this).prop('checked', true);
}
});
I'm not sure why you were going overly complicated to get the goodbye input, since you had an id and the id is always unique (or you'll have other issues).
$('#goodbye').val()
will give you the value in the input box. using indexOf will return -1 if the value is not found, a number 0 or greater if it is, so we can use that to figure out if the value exists.
example: http://jsfiddle.net/X74NK/1/
I want the checkbox with the value 2 to automatically get checked if the checkbox with the value 1 is checked. Both have the same id so I can't use getElementById.
html:
<input type="checkbox" value="1" id="user_name">1<br>
<input type="checkbox" value="2" id="user_name">2
I tired:
var chk1 = $("input[type="checkbox"][value="1"]");
var chk2 = $("input[type="checkbox"][value="2"]");
if (chk1:checked)
chk2.checked = true;
You need to change your HTML and jQuery to this:
var chk1 = $("input[type='checkbox'][value='1']");
var chk2 = $("input[type='checkbox'][value='2']");
chk1.on('change', function(){
chk2.prop('checked',this.checked);
});
id is unique, you should use class instead.
Your selector for chk1 and chk2 is wrong, concatenate it properly using ' like above.
Use change() function to detect when first checkbox checked or unchecked then change the checked state for second checkbox using prop().
Fiddle Demo
Id should be unique, so that set different ids to your elements, By the way you have to use .change() event to achieve what you want.
Try,
HTML:
<input type="checkbox" value="1" id="user_name1">1<br>
<input type="checkbox" value="2" id="user_name2">2
JS:
var chk1 = $("input[type='checkbox'][value='1']");
var chk2 = $("input[type='checkbox'][value='2']");
chk1.change(function(){
chk2.prop('checked',this.checked);
});
You need to change the ID of one. It is not allowed by W3C standard (hence classes vs ID's). jQuery will only process the first ID, but most major browsers will treat ID's similar to classes since they know developers mess up.
Solution:
<input type="checkbox" value="1" id="user_name">1<br>
<input type="checkbox" value="2" id="user_name_2">2
With this JS:
var chk1 = $('#user_name');
var chk2 = $('#user_name2');
//check the other box
chk1.on('click', function(){
if( chk1.is(':checked') ) {
chk2.attr('checked', true);
} else {
chk2.attr('checked', false);
}
});
For more information on why it's bad to use ID's see this: Why is it a bad thing to have multiple HTML elements with the same id attribute?
The error is probably coming here "input[type="checkbox"]
Here your checkbox is out of the quotes, so you query is looking for input[type=][value=1]
Change it to "input[type='checkbox'] (Use single quote inside double quote, though you don't need to quote checkbox)
http://api.jquery.com/checked-selector/
first create an input type checkbox:
<input type='checkbox' id='select_all'/>
$('#select_all').click(function(event) {
if(this.checked) {
$(':checkbox').each(function() {
this.checked = true;
});
}
});
I have a jquery variable that is storing a comma separated list of id names. I need help writing something in jquery that separates that variable and uses those values to populate a forms checkbox values when the page loads.
so my jquery variable is $storedFormValues that is a comma separated list of values "checkbox1, checkbox, etc."
and my form
<form name="formname" id="formid">
<input type='checkbox' class='catcheck' id='checkbox1' value='checkbox1' name='catselect' />Checkbox 1
<input type='checkbox' class='catcheck' id='checkbox2' value='checkbox2' name='catselect' />Checkbox 2
<input type="submit" name="submit" value="Submit" />
</form>
Any help would be greatly appreciated!
This should do it:
var $storedFormValues = "checkbox3,checkbox5";
$(function() {
$.each($storedFormValues.split(","), function(intIndex, objValue) {
$("#" + objValue).attr("checked", "true");
});
})
See the fiddle: http://jsfiddle.net/xNyww/
Not jQuery, but plain JS: You can use split to separate the values in an array:
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/split
I do not know what do the csv looks like. If it's only one line, e.g:
checkbox1, checkbox7, checkbox2
then use it as:
var checkboxes[] = csvString.split(",");
for (str in checkboxes) {
$("#"+str).yourActionHere();
}
If it's several lines (one per checkbox) , e.g.
checkbox1, true
checkbox2, false
then :
var checkboxes[] = csvString.split(/\r\n|\r|\n/);
for (str in checkboxes) {
var data = str.split(",");
$("#"+data[0]).yourActionHere(data[1]);
}
Live Demo
var storedFormValues = "checkbox1, checkbox3, checkbox4";
$('#formid').children('input[id^=checkbox]').each(function() {
if (storedFormValues.indexOf($(this).attr('id')) != -1) {
$(this).attr('checked', 'checked');
}
});
Note: If you plan on having more than 10 checkboxes, I recommend naming them with a leading zero (ex: checkbox01) otherwise you may run into an issue where checkbox1 matches against checkbox11.
I have several checkboxes and a fake submit button to make an AJAX request:
<form>
<input type="checkbox" value="1"/>
<input type="checkbox" value="2" checked="checked"/>
<input type="checkbox" value="3"/>
<input type="checkbox" value="4" checked="checked"/>
<input type="button" onclick="return mmSubmit();"/>
</form>
Within the mmSubmit() method, I would like to retrieve an array of values that have been selected. Here is what I am currently doing.
mmSubmit = function() {
var ids = [];
$('input[type=checkbox]:checked');.each(function(index) {
ids.push($(this).attr('value'));
});
// ids now equals [ 2 , 4 ] based upon the checkbox values in the HTML above
return false;
};
I'm wondering if there is a shorthand method in jQuery used to retrieve the values into an array, or if what I have is already optimal.
I think this can be accomplished with map. Try the following..
mmSubmit = function() {
var ids = $('input[type=checkbox]:checked').map(function(){
return $(this).val();
}).get();
// ids now equals [ 2 , 4 ] based upon the checkbox values in the HTML above
return false;
};
Take a look at: jQuery Traversing/Map
Well you can use .val() instead of .attr('value').
$.serializeArray() may also do what you want (http://docs.jquery.com/Ajax/serializeArray).
It's needs some optimization, buts generally it is right way. My variant:
mmSubmit = function () {
var ids = [];
$('input[type=checkbox]').each(function () {
if (this.checked) {
ids[ids.length] = this.value;
}
});
return ids;
};
It's little faster.