Here's my code:
<div id='layer1'>
<div id='a'>
<div id='b'>
<div id='layer2'>
<div id='a'>
<div id='b'>
<div id='layer3'>
<div id='a'>
<div id='b'>
I want to try to get the element [a] of layer1.
Could I do this using pure javascript and withOUT jquery and other stuff?
An ID uniquely identifies one single element on the page. The behavior you described is more like "a class" inside of an ID:
document.querySelector("#counter-for-drinks .up-arrow")
and so if you want a different up-arrow, it is:
document.querySelector("#counter-for-burgers .up-arrow")
document.querySelector() is what is similar to jQuery $(" "). It also has the form document.querySelectorAll() for getting all matched elements.
Your HTML is missing closing tags. You can always validate your code here.
Also, you should use class instead of id.
<div id='layer1'>
<div class='a'></div>
<div class='b'></div>
</div>
<div id='layer2'>
<div class='a'></div>
<div class='b'></div>
</div>
<div id='layer3'>
<div class='a'></div>
<div class='b'></div>
</div>
You can use javascript to get elements:
document.querySelector("#layer1 .a")
var firstA = document.querySelectorAll('#layer1 #a');
var nodeString = '';
if (firstA.length > 0) {
for (var i = 0; i < firstA.length; i++) {
nodeString = nodeString + firstA[i].innerText + '<br/>';
}
}
document.getElementById('founded-nodes').innerHTML = nodeString;
#founded-nodes {
color: brown;
}
<div id='layer1'>
<div id='a'>layer1 aaa</div>
<div id='b'>layer1 bbb</div>
</div>
<div id='layer2'>
<div id='a'>layer2 aaa</div>
<div id='b'>layer2 bbb</div>
</div>
<div id='layer3'>
<div id='a'>layer3 aaa</div>
<div id='b'>layer3 bbb</div>
</div>
<div id="founded-nodes"></div>
As all said in above over comments and answers, one must use a single id on the same page, or else the use of classes is a must. But if you want to achieve this, you can have a look at code.
Related
Basically, I'm asking for a way to optimize this code. I'd like to cut it down to a few lines because it does the same thing for every click bind.
$("#arch-of-triumph-button").click(function(){
$("#arch-of-triumph-info").addClass("active-info")
});
$("#romanian-athenaeum-button").click(function(){
$("#romanian-athenaeum-info").addClass("active-info")
});
$("#palace-of-parliament-button").click(function(){
$("#palace-of-parliament-info").addClass("active-info")
});
Is there a way to maybe store "arch-of-triumph", "romanian-athenaeum", "palace-of-parliament" into an array and pull them out into a click bind? I'm thinking some concatenation maybe?
$("+landmarkName+-button").click(function(){
$("+landmarkName+-info").addClass("active-info")
});
Is something like this even possible?
Thanks in advance for all your answers.
EDIT: Here's the full HTML.
<div class="landmark-wrapper">
<div class="page-content landmark">
<div class="heading span-after">
<span>Arch of Triumph</span>
</div>
<div class="landmark-button" id="arch-of-triumph-button"></div>
</div>
</div>
<div class="landmark-wrapper">
<div class="page-content landmark">
<div class="heading span-after">
<span>Romanian Athenaeum</span>
</div>
<div class="landmark-button" id="romanian-athenaeum-button"></div>
</div>
</div>
----------------------------------------------------------
<div class="landmarks-info-wrapper">
<div class="landmark-info" id="arch-of-triumph-info">
<div class="info-landmark section">
<span class="landmark-title">Arch of Triumph</span>
<span class="landmark-coord">44°28′1.99″N 26°4′41.06″E</span>
</div>
</div>
<div class="landmark-info" id="romanian-athenaeum-info">
<div class="info-landmark section">
<span class="landmark-title">The Romanian Athenaeum</span>
<span class="landmark-coord">44.4413°N 26.0973°E</span>
</div>
</div>
Assuming you're not able to modify your HTML markup (in which case with use of CSS classes would be cleaner), a solution to your question would be as shown below:
// Assign same click handler to all buttons
$("#arch-of-triumph-button, #romanian-athenaeum-button, #palace-of-parliament-button")
.click(function() {
// Extract id of clicked button
const id = $(this).attr("id");
// Obtain corresponding info selector from clicked button id by replacing
// last occurrence of "button" pattern with info.
const infoSelector = "#" + id.replace(/button$/gi, "info");
// Add active-info class to selected info element
$(infoSelector).addClass("active-info");
});
Because each .landmark-button looks to be in the same order as its related .landmark-info, you can put both collections into an array, and then when one is clicked, just find the element with the same index in the other array:
const buttons = [...$('.landmark-button')];
const infos = [...$('.landmark-info')];
$(".landmark-button").click(function() {
const i = buttons.indexOf(this);
$(infos[i]).addClass('active-info');
});
This does not rely on IDs at all - feel free to completely remove those from your HTML to declutter, because they don't serve any purpose now that they aren't being used as selectors.
Live snippet:
const buttons = [...$('.landmark-button')];
const infos = [...$('.landmark-info')];
$(".landmark-button").click(function() {
const i = buttons.indexOf(this);
$(infos[i]).addClass('active-info');
});
.active-info {
background-color: yellow;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="landmark-wrapper">
<div class="page-content landmark">
<div class="heading span-after">
<span>Arch of Triumph</span>
</div>
<div class="landmark-button" id="arch-of-triumph-button">click</div>
</div>
</div>
<div class="landmark-wrapper">
<div class="page-content landmark">
<div class="heading span-after">
<span>Romanian Athenaeum</span>
</div>
<div class="landmark-button" id="romanian-athenaeum-button">click</div>
</div>
</div>
----------------------------------------------------------
<div class="landmarks-info-wrapper">
<div class="landmark-info" id="arch-of-triumph-info">
<div class="info-landmark section">
<span class="landmark-title">Arch of Triumph</span>
<span class="landmark-coord">44°28′1.99″N 26°4′41.06″E</span>
</div>
</div>
<div class="landmark-info" id="romanian-athenaeum-info">
<div class="info-landmark section">
<span class="landmark-title">The Romanian Athenaeum</span>
<span class="landmark-coord">44.4413°N 26.0973°E</span>
</div>
</div>
Older answer, without knowing the HTML: You can extract the ID of the clicked button, slice off the button part of it, and then select it concatenated with -info:
$(".landmark-button").click(function() {
const infoSel = this.id.slice(0, this.id.length - 6) + 'info';
$(infoSel).addClass('active-info');
});
A much more elegant solution would probably be possible given the HTML, though.
I am trying to get first letter of firstname and lastname from a div and paste it in another div but it is pasting the same value in all divs and not taking unique value from each div.
Working Fiddle: https://jsfiddle.net/bv7w8dxg/1/
Issue Fiddle: https://jsfiddle.net/bv7w8dxg/
var takword = $('.nameholder').text().split(' ');
var text = '';
$.each(takword, function () {
text += this.substring(0, 1);
});
$('.avatarholder').text(text);
Markup
`
John Doe
<div class="main-holder">
<div class="nameholder">Kyle Davis</div>
<div class="avatarholder"></div>
</div>
<div class="main-holder">
<div class="nameholder">Seim Seiy</div>
<div class="avatarholder"></div>
</div>
<div class="main-holder">
<div class="nameholder">Momma Boy</div>
<div class="avatarholder"></div>
</div>`
You are using class selectors, which selects all elements with the given class name. That's why you have all the elements set with same value
You need to wrap your elements then process each row independently
I updated your code snippet to demonstrate this:
$('.row').each(function() {
var takword = $('.nameholder', this).text().split(' ');
var text = '';
$.each(takword, function () {
text += this.substring(0, 1);
});
$('.avatarholder', this).text(text);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="row">
<div class="nameholder">John Doe</div>
<div class="avatarholder"></div>
</div>
<div class="row">
<div class="nameholder">Kyle Davis</div>
<div class="avatarholder"></div>
</div>
<div class="row">
<div class="nameholder">Seim Seiy</div>
<div class="avatarholder"></div>
</div>
<div class="row">
<div class="nameholder">Momma Boy</div>
<div class="avatarholder"></div>
</div>
Here i have HTML structure and the same structure may repeat number of times with the same class names. what i'm trying to do is once i click on the .innerDiv i should be able to access the attr value of the .inid close to its parent element.
here is what i have tried, but its not working. i also tried adding the classname to the element i'm trying to get the value from. but its adding the class to all the element with .inid. how can i do this?
HTML
<div class="parent_div">
<div class="content-container">
<div class="second-most-innerdiv>
<div class="container-box">
<div class="innerDiv">Click here</div>
</div>
</div>
</div>
<div class="inid" data-attr="jkoadoas-Kjksjfks_skaj"></div>
</div>
<div class="parent_div">
<div class="content-container">
<div class="second-most-innerdiv>
<div class="container-box">
<div class="innerDiv">Click here</div>
</div>
</div>
</div>
<div class="inid" data-attr="jkoadoas-Kjksjfks_skaj"></div>
</div>
Jquery
$(this).on('click',function(){
$('.innerDiv').parents().find('.inid').addClass('testclass');
$('.innerDiv').parents().find('.inid').attr(data-attr);
});
To achieve expected result, use index of innerDiv and add class-testclass to element with class- inid
Find index of clicked innerDiv using index('.innerDiv)
Use that index to add class using eq
Add some sample css to testclass for testing
Syntax error in your code - closing quotes missing for class- second-most-innerdiv
Codepen - https://codepen.io/nagasai/pen/
working example
$('.innerDiv').on('click',function(){
$('.inid').eq($(this).index('.innerDiv')).addClass('testclass');
console.log($('.inid').eq($(this).index('.innerDiv')).attr('data-attr'))
});
.testclass{
background: red;
height: 10px;
width:10px
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="parent_div">
<div class="content-container">
<div class="second-most-innerdiv">
<div class="container-box">
<div class="innerDiv">Click here</div>
</div>
</div>
</div>
<div class="inid" data-attr="jkoadoas-Kjksjfks_skaj"></div>
</div>
<div class="parent_div">
<div class="content-container">
<div class="second-most-innerdiv>
<div class="container-box">
<div class="innerDiv">Click here</div>
</div>
</div>
</div>
<div class="inid" data-attr="jkoadoas-Kjksjfks_skaj"></div>
</div>
Using JQuery closest() feature to find the parent div, then find the element with class "inid" within that parent element and get the value of the attribute.
$('.innerDiv').on('click',function(){
var inid = $(this).closest('.parent_div').find('.inid');
inid.addClass('testclass');
console.log('selected -> ' + inid.attr(data-attr));
});
Source: https://api.jquery.com/closest/
The content of the divs is going to be populated with javascript json. Now, I know how to select a div in javascript:
var hsc = document.getElementByID("hsc");
But how would I refer to eg. the title but only in the hsc div.
<div id="hsc">
<div id="title"></div>
<div id="jobs"></div>
...
</div>
<div id="cc">
<div id="title"></div
<div id="jobs"></div>
</div>
On a separate note, wouldn't 'title' and 'jobs' be better classified as classes, and not ids?
This would work:
var hsc = document.querySelectorAll("#hsc > .title");
But you need to change to valid html and use unique IDs and classes instead:
<div id="hsc">
<div class="title"></div>
<div class="jobs"></div>
...
</div>
<div id="cc">
<div class="title"></div>
<div class="jobs"></div>
</div>
IDs must be unique in HTML.
Change them to classes, and then you can use querySelector() to target them:
document.querySelector('.hsc .title').style.color= 'blue';
document.querySelector('.cc .title').style.color= 'red';
<div class="hsc">
<div class="title">Make me blue!</div>
<div class="jobs">Jobs</div>
</div>
<div class="cc">
<div class="title">Make me red!</div>
<div class="jobs">More jobs</div>
</div>
Just try
<div id="hsc">
<div id="a" class="title"></div>
<div id="b" class="jobs"></div>
...
</div>
<div id="cc">
<div id="c" class="title"></div
<div id="d"class="jobs"></div>
</div>
Because your HTML code is invalid because the id is already taken.
I have a HTML string that I convert to a JQuery node set:
var html = "<div id='foo'><div id='bar'></div></div>";
var nodes = $(html);
I want to add the content <div id="baz"></div> immediately after <div id='bar'></div>. I tried using:
nodes.find('#bar').prepend('<div id="baz"></div>');
But this yields the result:
<div id="foo">
<div id="bar">
<div id="baz"></div>
</div>
</div
But what I want is:
<div id="foo">
<div id="bar"></div>
<div id="baz"></div>
</div>
nodes.append('<div id="baz"></div>');
or...
$('<div>',{id:"baz"}).appendTo(nodes);
Try after
nodes.find('#bar').after('<div id="baz"></div>');
Here is the sample : http://jsfiddle.net/UCghk/3/