How to get children id when I click the parent? - javascript

<div class="big" onclick="dataadd()">
<div id="a">child1</div>
<div id="b">child2</div>
</div>
When I click the div with class="big" tag, I wanna get the children's id or text.
I tried all several methods, but I can't handle it. Anyone know how to do it? Javascript or Jquery doesn't matter.
Thank you very much!

You can pass your clicked element by dataadd(this);
You may wonder how this comes inside the method. adding this keyword like above will refer to the current element.
Then using that element, you can find children and with each you can grab other details by loop through the children.
function dataadd(ele){
var children = $(ele).find('div');
children.each(function(idx, element){
console.log($(element).attr('id'));
});
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="big" onclick="dataadd(this)">
<div id="a">child1</div>
<div id="b">child2</div>
</div>

Use children() to selecting childs of element and use map() to mapping elements to id attribute.
$(".big").click(function(){
var ids = $(this).children().map(function(){
return this.id;
}).toArray();
console.log(ids);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="big">
<div id="a">child1</div>
<div id="b">child2</div>
</div>
Also you can use simpler code as shown in bottom
$(".big").click(function(){
console.log(
$('> *', this).map((i, val) => val.id).toArray()
);
});

For a more modern way with ES6:
document.querySelector(".big").addEventListener('click', function(e){
[...e.target.children].forEach(function(child){
const { id, innerText } = child;
console.log(id, innerText);
})
})

You can pass the context using this and use querySelectorAll to get the div and then its id
function dataadd(elem) {
elem.querySelectorAll('div').forEach(function(item) {
console.log(item.id)
})
}
<div class="big" onclick="dataadd(this)">
<div id="a">child1</div>
<div id="b">child2</div>
</div>

function dataadd(){
$(this).children().each(function(){
console.log($(this).attr('id'));
})
}
This code will print ids of big div.

Related

Targeting Multiple Elements with One Function

I have a function that assigns dynamic classes to my div's. This function is a that runs on the page. After the page loads, all 10 of my primary 's have classes ".info1" or ".info2" etc...
I am trying to write a Jquery function that changes the class of the div you click on, and only that one. Here is what I have attempted:
$(".info" + (i ++)).click(function(){
$(".redditPost").toggleClass("show")
});
I have also tried:
$(".info" + (1 + 1)).click(function(){
$(".redditPost").toggleClass("show")
});
And
$(".info" + (i + 1)).click(function(){
$(".redditPost").toggleClass("show")
});
EDITED MY HTML: DIV RedditPost is actually a sibling to Info's parent
<div class="listrow news">
<div class="newscontainer read">
<div class=".info1"></div>
<div class="redditThumbnail"></div>
<div class="articleheader read">
</div>
<div class="redditPost mediumtext"></div>
</div>
My issue is two fold.
The variable selection for ".info" 1 - 10 isn't working because i doesn't have a value.
If I did target the correct element it would change all ".redditPost" classes instead of just targeting the nearest div.
Try like this.
$("[class^='info']").click(funtion(){
$(this).parent().find('.redditPost').toggleClass("show");
});
Alternative:
$('.listrow').each(function(){
var trigger = $(this).find("[class^='info']");
var target = $(this).find('.redditPost');
trigger.click(function(){
target.toggleClass("show");
});
});
Try this
$("div[class*='info']").click(function(){
$(this).parent().find(".redditPost").toggleClass("show")
});
Explanation:
$("div[class*='info'])
Handles click for every div with a class containing the string 'info'
$(this).parent().find(".redditPost")
Gets the redditPost class of the current clicked div
Since the class attribute can have several classes separated by spaces, you want to use the .filter() method with a RegEx to narrow down the element selection as follows:
$('div[class*="info"]').filter(function() {
return /\binfo\d+\b/g.test( $(this).attr('class') );
}).on('click', function() {
$(this).siblings('.redditPost').toggleClass('show');
});
.show {
display:none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="listrow news">
<div class="newscontainer read">
<div class="info1">1</div>
<div class="redditThumbnailinfo">2</div>
<div class="articleheader read">3</div>
<div class="redditPost mediumtext">4</div>
</div>
</div>

How to include negation in this JQuery selector?

I have the following HTML fragment.
<div class="diagram-frame">
<div class="diagram">
<span class="diagram-name">Drawing Objects</span>
<svg>...lots of child elements...</svg>
</div>
<div class="diagram-name">
<a class="idlink" title="Drawing Objects (data models)" href="...">NA - Drawing Objects</a>
</div>
</div>
Currently, I use this jQuery selector to detect what has been clicked on:
jClicked.add(jClicked.parents()).is('div.diagram-frame')
jClicked is jQuery object containing the clicked element.
But I need to exclude clicks on the diagram-name div. How can I add negation using the .not('div.diagram-name') function call?
Since .is() matches a css selector, why not use the css :not() pseudo, and do all in one command?
jClicked.add(jClicked.parents()).is('div.diagram-frame:not(.diagram-name)')
Like this?
jClicked.add(jClicked.parents())
.not(jClicked.$('div.diagram-name'))
.is('div.diagram-frame')
Note, Not certain about jClicked object ?
Try
$(function() {
var jClicked = [];
$(".diagram-frame").on("click", function(e) {
if (!$(e.target).parent().is("div.diagram-name")) {
jClicked.push(e.target);
console.log($(jClicked));
alert(jClicked.length);
}
});
});
$(function() {
var jClicked = [];
$(".diagram-frame").on("click", function(e) {
e.preventDefault();
if (!$(e.target).parent().is("div.diagram-name")) {
jClicked.push(e.target);
console.log($(jClicked));
alert(jClicked.length);
}
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="diagram-frame">
<div class="diagram">
<span class="diagram-name">Drawing Objects</span>
<svg>...lots of child elements...</svg>
</div>
<div class="diagram-name">
<a class="idlink" title="Drawing Objects (data models)" href="...">NA - Drawing Objects</a>
</div>
</div>
jsfiddle http://jsfiddle.net/guest271314/2myjbuhL/

Get first child ID from an article with just a class name with Jquery

I have my code like this. It is supposed to show like horizontal buttons with dates. When the user clicks on one of that buttons, the box expands itself showing the pictures in it.
I'm trying to get the first child ID of the article clicked with jquery to be able to show the gallery_items with the first child ID without the "_title" at the end. But I get undefined.
My html:
<section id="gallery">
<article class="gallery_date">
<div id="1389848400_title">16-01-2014</div>
<div class="gallery_items" id="1389848400">
261689_10150238069156283_4353481_n.jpg<br>
IMG_4667.jpg<br>
millenium2.png<br>
</div>
</article>
<article class="gallery_date">
<div id="1389762000_title">15-01-2014</div>
<div class="gallery_items" id="1389762000">
IMG_4661.jpg<br>
</div>
</article>
<article class="gallery_date">
<div id="1389675600_title">14-01-2014</div>
<div class="gallery_items" id="1389675600">
bcn.png<br>
logoenmedio.png<br>
</div>
</article>
</section>
My Jquery:
$().ready(function() {
$(".gallery_date").click(function(event) {
console.log($(".gallery_date:first-child").attr("id"));
});
});
Thanks
"I'm trying to get the first child ID of the article clicked with jquery to be able to show the gallery_items with the first child ID without the "_title" at the end."
Do this:
$(this).children().first().prop("id").split("_")[0];
Or without jQuery so it's not so verbose:
this.children[0].id.split("_")[0];
But if that's the only need for the ID, then you could just select the element with .children() by its class:
$(this).children(".gallery_items")
the first child ID without the "_title".
You can use .replace() to remove '_title' or you can use .split()
$(document).ready(function() {
$(".gallery_date").click(function(event) {
var id = $(this).children().first().attr("id")
console.log(id.replace('_title',''));
console.log(id.split("_")[0]);
});
});
Try this:
$(document).ready(function() {
$(".gallery_date").click(function(event) {
console.log($(this).find('.gallery_items:first-child').attr("id"));
});
});
$(".gallery_date").click(function(event) {
console.log($(this).children().first().attr("id"));
});
If your html is structured the way it is, you can also just use the .next() method to get the gallery_items div, like this, so you don't have to worry about getting IDs and retrieving the DOM elements again:
$(document).ready(function() {
$(".gallery_date").click(function() {
$(this).next(".gallery_items").slideDown();
});
});

How to get class of item selected in jquery?

I have 2 images (.field-img) , wrapped in a container (.group-container),
each of the images are in a unique field id, so my tpl is broken down into
<div class=group-container>
<div id=field1>
<div class=field-img>
</div></div>
<div id=field2>
<div class=field-img>
</div></div>
</div>
my js is
$(".group-container .field-img").click(function() {
alert(".group-container .field-img");
what I would like is to detect automatically if the image belongs to field1 or field2.
So I could alert (".group-container .field1/2 .field-img");
How would I do this?
Thanks for any help
$(".group-container .field-img").click(function() {
var field=$(this).parent().attr('id');
});
An alternative to Izzey's solution is to use .closest with an attribute starts with selector (or classname because it would be more appropriate for those divs to have a common class)
$(".group-container .field-img").click(function() {
var field = $(this).closest("[id^=field]")[0].id;
});
or, with a common classname,
html
<div class=group-container>
<div class="field" id=field1>
<div class=field-img>
</div></div>
<div class="field" id=field2>
<div class=field-img>
</div></div>
</div>
js
$(".group-container .field-img").click(function() {
var field = $(this).closest(".field")[0].id;
});
$(".group-container .field-img").click(function() {
var field = this.parentNode.id;
alert (".group-container ." + field + " .field-img");
});
$(".group-container .field-img").each(function() {
$(this).click(function(){
var fieldid=$(this).parent().attr('id');
});
});
Since one element is inside the other, the click will propagate up anyway, so you could always just bind the click to the parent element and do :
$('div[id^="field"]').on('click', function() {
alert(".group-container "+this.id+" .field-img");
});
FIDDLE
or even get them all dynamically:
$('div[id^="field"]').on('click', function(e) {
alert('.'+this.parentNode.className+" "+this.id+" ."+e.target.className);
});
FIDDLE
​

Accessing a inner div value in javascript, with no ids to help

I have following structure
<div onClick="javascript:Myfunction('value');">
<div title="Mytitle"> </div>
</div>
Can I access in the javascript Myfunction, the title of the inner div.
There are no ids here.
If you do not want to change the html code then you can use this.
function MyFunction ( elem )
{
var child = jQuery(elem).find("div");
alert ( child.attr("title") );
}
<div onclick="MyFunction(this);">
<div title="Mytitle"> </div>
</div>
Otherwise try this
$(document).ready ( function () {
$('#divMain').click(function() {
var titleElem = $(this).find("div");
alert ( titleElem.attr("title") );
});
});
<div id="divMain" style="width: 100px; height: 100px;">
<div title="Mytitle">
</div>
</div>
Depends if you use any JavascriptLibraries like jQuery. If you do, you can select your objects via CSS selectors, which would be in your case
$('div[onclick] > div[title]')
You'd get your inner DIV element with it. If there are more elments that match this criteria, you could limit them even more by attribute values.
If it's the only div with the title you can use this selector:
$('div[title]')
The easiest solution would to add a class or id to the div with onClick defined (I suggest moving onlick to JS code as well)
<div class="myClass">
<div title="MyTitle"> ... </div>
</div>
And in JS:
$('.myClass').click(function() {
MyFunction('value');
});
Then you can find inner div with
$('.myClass div')

Categories