I have a li that has a hidden value and I want to get this value
...
<li class="list-group-item" id="A1">item name<input type="hidden" class="bssid-val" value="myvalue"></li>
...
I thought the following would work, put apparently not.
$('body').on('click', '#hook_list li', function(){
var BSSID = $('this').siblings('.bssid-val').val();
How do I get myvalue?
There are 2 problems in your code:
this is a keyword. 'this' is a string. $('this') tries to select elements that have tagName of this, i.e. <this></this>. You should remove the quotes.
The target element is the child of the clicked element. So you need to use children or find method instead of the siblings method.
$(this).children('.bssid-val').val();
$('body').on('click', 'li', function(){
var BSSID = $(this).children('.bssid-val').first().attr("value");
alert(BSSID);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<li class="list-group-item" id="A1">item name<input type="hidden" class="bssid-val" value="myvalue"/></li>
If you want a different click selector you can use it , I generalized with only li
Related
I'm using jQuery traversing to jump between DOM elements.
First of i have a onClick function:
$(document).on('keyup', '.size, .ant', function(){
Inside of this function I send data about what's clicked, to another function.
sulorTableRowWeight( $(this) );
function sulorTableRowWeight(thisobj){
Now, I'd like to traverse from the clicked element $(this) to its parent. I'd like to find the parent's siblings and then traverse down to a specific sibling.
var inputSize = $(thisobj).parent().siblings('.sizeTd').children('.size');
My problem is when I want to traverse back down to the element I came from, it is not listed as a sibling because it isn't a sibling...
var inputSize = $(thisobj).parent().siblings(); console.log(inputSize)
console will give me the siblings, but not the one U came from...
So, when a user clicks ".size" I'd like to traverse up to the parent and back to size.... When a user clicks ".ant" I'd like to traverse up to the parent and then down to ".size"...
I tried to hardcode the traversing:
var inputSize = $(thisobj).parent().siblings('.sizeTd').children('.size');
But it won't work because it is not actually a sibling.
So what is it? And how can I get back to it?
If it is not possible, I have to run some if/else statements, U guess...
UPDATE
$(document).on('keyup', '.size, .ant', function(){
//Find changed <select> .tbody
var tbodyId = $(this).parent().parent('tr').parent('tbody').attr('id');
//Check <tbody> #id
if(tbodyId === "cpTableBody"){
}
else if(tbodyId === "sulorTableBody"){
sulorTableRowWeight( $(this) );
}
else if(tbodyId === "konturTableBody"){
konturTableRowWeight( $(this) );
}
else if(tbodyId === "kantbalkTableBody"){
kantbalkTableRowWeight( $(this) );
}
})
//Function sulorTableRowWeight
function sulorTableRowWeight(thisobj){
//Find the selected data-weight
var selectedWeightmm3 = $(thisobj).parent().siblings('.selectTd').children('.select').find(':selected').data('weightmm3');
//Find input .size value
var inputSize = $(thisobj).parent().siblings('.sizeTd').children('.size'); console.log(inputSize)
PROBLEM
My var inputSize will return undefined when I click a ".size" element. That´m's because it is not listed as a sibling to itself.
I know it's keyup, not click...
e.target will select the current input
$(document).on('keyup', '.size, .ant', function(e) {
inputSize = $(e.target);
if($(e.target).is('.ant')) {//test if the element is .ant
inputSize = $(e.target).parent().find('.size');//get .size based on .ant
}
console.log(inputSize[0]);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<input class="size x1" placeholder="x1">
<input class="ant x1" placeholder="x1 ant">
</div>
<div>
<input class="size x2" placeholder="x2">
<input class="ant x2" placeholder="x2 ant">
</div>
Hmm, if you're passing in $(this) as thisObj I don't think you need to be nesting thisObj in a $(). (See note below)
Anyway, you could try using .parents('<grandparent>').find('<child>') so basically you're traversing one higher level up the tree with <grandparent>, then getting all the descendants that match the child selector. That should include the branch of the three that $(this) represents. But it's hard to say for sure without seeing your HTML.
** A good practice when assigning jQuery objects to variables is to use $ syntax, ie var $this = $(this) so you know anything prepended with a $ is a jQuery object.
inside sulorTableRowWeight , you should have the reference to the clicked element in thisobj variable.
Is there a way to assign nested div attribute with variable? Like
<div>
<div>
123456
</div>
</div>
Become
<div>
<div sectionid="123">
123456
</div>
</div>
BTW above component will be created by JavaScript.
I've tried something like this, but it didn't work.
var a = $('<div><div>123456</div></div>');
a.eq(":nth-child(2)").attr("sectionid", "123");
Try this snippet.
//FOR DOM HTML
console.log("FOR DOM HTML");
//1st way
$('#input > div').find('div').attr("sectionid","123");
console.log($('#input').html());
//2nd way
$('#input > div > div').attr("sectionid","321");
console.log($('#input').html());
//JS HTML
console.log("FOR JS OBJECT");
var input = $('<div><div>123456</div></div>');
//1st way
input.eq(0).children().attr('sectionid', '456');
console.log(input[0].outerHTML);
var input = $('<div><div>123456</div></div>');
//2nd way
$(input[0]).children().attr('sectionid', '789');
console.log(input[0].outerHTML);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="input">
<div>
<div>
123456
</div>
</div>
</div>
nth-child(2) maches elements that are the second child element of their parent. This is not the case for your div, it is the first element of the parent div.
.eq finds an element at a specific index. It is not the place to pass a selector.
The child selector, >, will find a child element, i.e. div>div will find a div that is an immediate child of a div.
Note that the code you've provided, $('<div></div>123456<div></div>');, doesn't create a DOM tree like the one you've pasted.
Update, now that the code is edited, the value of a is a div with a child div. Since a.find will perform a search within a, you don't have to use a child selector, but can find the div immediately:
a.find('div')
Just apply attribute to children. No complicated 'find', eq(), etc.
var a = $('<div><div>123456</div></div>');
a.children().attr('sectionid', '123');
$('body').append(a);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Why don't you add it in the first place? Not clear if you add it later!
$(document).ready(function() {
var sectionid = "123";
var a = $('<div><div sectionid="' + sectionid + '">123456</div></div>');
$('body').append(a);
});
div[sectionid]{
color: red;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
Try this - I have added comments to the code to explain what is happening.
Inspect the element to see that the attribute is added
var a = $('<div><div>123456</div></div>'); // change this to match the structure you want
a.children() // .children gets the direct descendant (which should be the nested div
.eq(0) // gets the first in the array that is returned (if there are multiple direct descendents) - it is a 0 based index selector
.attr('sectionid', '123');
$('body').append(a)
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
More information about .children()
More information about .eq()
try it :
$(document).ready(function(){
$("div").eq(1).attr("sectionid","123");
})
I have the following html
<li class="selector">
<a>
<input type="checkbox" value="test" />
</a>
</li>
How do i get the value of checkbox. I have following jquery click event.
$('.selector').on('click', function() {
var vals = $(this).children('input').val();
alert(vals); #showing as undefined
});
Try to use find method instead:
var vals = $(this).find('input').val();
If you will have more than 1 input you will need to filter what to get, for example
var vals = $(this).find('input').eq(0).val();
Will get only first input value
Use .find() instead of .children()
var vals = $(this).find('input[type="checkbox"]').val();
find() – search through the matched elements’ child, grandchild, great-grandchild…any levels down.
children() – search through the matched elements’ child only (single level down)
As per your HTML, checkbox is grandchild
Problem: Creating an Element on a button click then attaching a click event to the new element.
I've had this issue several times and I always seem to find a work around but never get to the root of the issue. Take a look a the code:
HTML:
<select>
<option>567</option>
<option>789</option>
</select>
<input id="Add" value="Add" type="button"> <input id="remove" value="Remove" type="button">
<div id="container">
<span class="item">123</span>
<br/>
<span class="item">456</span>
<br/>
</div>
JavaScript
$(".item").click(function () {
if ($("#container span").hasClass("selected")) {
$(".selected").removeClass("selected");
}
$(this).addClass("selected");
});
$("add").click(function() {
//Finds Selected option from the Select
var newSpan = document.createElement("SPAN");
newSpan.innerHTML = choice;//Value from Option
newSpan.className = "item";
var divList = $("#container");
divList.appendChild(newSpan);//I've tried using Jquery's Add method with no success
//Deletes the selected option from the select
})
Here are some methods I've already tried:
Standard jQuery click on elements with class "item"
Including using the `live()` and `on()` methods
Setting inline `onclick` event after element creation
jQuery change event on the `#Container` that uses Bind method to bind click event handler
Caveat: I can not create another select list because we are using MVC and have had issues retrieving multiple values from a list box. So there are hidden elements that are generated that MVC is actually tied to.
Use $.on instead of your standard $.click in this case:
$("#container").on("click", ".item", function(){
if ( $("#container span").hasClass("selected") ) {
$(".selected").removeClass("selected");
}
$(this).addClass("selected");
});
It looks to me like you want to move the .selected class around between .item elements. If this is the case, I would suggest doing this instead:
$("#container").on("click", ".item", function(){
$(this)
.addClass("selected")
.siblings()
.removeClass("selected");
});
Also note your $("add") should be $("#add") if you wish to bind to the element with the "add" ID. This section could also be re-written:
$("#add").click(function() {
$("<span>", { html: $("select").val() })
.addClass("item")
.appendTo("#container");
});
How can I delete list element if it has a child link of some defined id ? So looking at the code below I'd like to find a <li> with <a> of id=link1 and delete this li.
<li class="nav-tab">
Component
</li>
I've tried the code below but it doesn't work :
$(function() {
$('.nav-tab:has(#link1)').css('display', 'none');
});
Your question and your code contradict each other, so I'll provide answers for both cases.
If you want to remove a <li class="nav-tab"> that contains a child <a href="#link1">:
$(function() {
$('a[href="#link1"]').parent('li.nav-tab').remove();
});
If you want to remove a <li class="nav-tab"> that contains a child <a id="link1">:
$(function() {
$('a#link1').parent('li.nav-tab').remove();
});
You can use an attribute-equals selector and :has() to see if it contains an element matching that...then just call .remove() on that.
$("li:has(a[href='#link1'])").remove()
$(function() {
$(".nav-tab > a[id='yourID']").css('display', 'none');
});
If by anchor :
$(function() {
$(".nav-tab > a[href='yourLink']").css('display', 'none');
});