How can I check the existence of an element in jQuery

0 votes

The current code that I have is this:

if ($(selector).length > 0) {
    // Do something here
}

Is there a more elegant way to approach this? Perhaps a plugin or a function?

Sep 8, 2020 in Java-Script by Arpit
• 200 points
844 views

1 answer to this question.

0 votes

Hello @ Arpit

In JavaScript, everything is 'truthy' or 'falsy', and for numbers 0 means false, everything else true. So you could write:

if ($(selector).length)

You don't need that >0 part.

Hope it helps!!
Thank you!!

answered Sep 8, 2020 by Niroj
• 82,840 points

Related Questions In Java-Script

0 votes
1 answer

How do I select an element with its name attribute in jQuery?

Hello @kartik, You can use: jQuery('[name="' + nameAttributeValue + ...READ MORE

answered Jun 11, 2020 in Java-Script by Niroj
• 82,840 points
1,058 views
0 votes
1 answer

How do I check if an HTML element is empty using jQuery?

Hello @kartik, Try: if ($('#element').is(':empty')){ //do something }  If you ...READ MORE

answered Aug 25, 2020 in Java-Script by Niroj
• 82,840 points
3,641 views
0 votes
2 answers

How can I set focus on an element in an HTML form using JavaScript?

Hi Kartik, try the following script <script>  (window.onload = ...READ MORE

answered Sep 24, 2020 in Java-Script by Okugbe
• 280 points
1,847 views
0 votes
1 answer

How can we detect timeout on an AJAX (XmlHttpRequest) call in the browser?

Hii, In order to handle a timeout: var xmlHttp ...READ MORE

answered Apr 27, 2020 in Java-Script by Niroj
• 82,840 points
5,710 views
0 votes
1 answer

How can I get the user's local time instead of the server's time?

Hello @kartik, For client side, you would need ...READ MORE

answered Jul 7, 2020 in Java-Script by Niroj
• 82,840 points
675 views
0 votes
1 answer

How can I make a div stick to the top of the screen once it's been scrolled to?

Hello @kartik, Using javascript: var initTopPosition= $('#myElementToStick').offset().top; ...READ MORE

answered Sep 4, 2020 in Java-Script by Niroj
• 82,840 points
830 views
0 votes
0 answers

How do I check if an array includes a value in JavaScript?

What is the quickest and most effective method to determine whether a JavaScript array has a value? The only method I am aware of is as follows: function contains(a, obj) { ...READ MORE

Sep 23, 2022 in Java-Script by Abhinaya
• 1,160 points
747 views
0 votes
1 answer

How can we create an HTTPS server in Node.js?

Hii, The Express API doc spells this out pretty clearly. I ...READ MORE

answered Apr 24, 2020 in Java-Script by Niroj
• 82,840 points
793 views
0 votes
1 answer

How can I determine the type of an HTML element in JavaScript?

Hello @kartik, nodeName is the attribute you are looking ...READ MORE

answered Oct 8, 2020 in Java-Script by Niroj
• 82,840 points
2,340 views
0 votes
1 answer

How do I check if an element is hidden in jQuery?

Hello @kartik,  You can use CSS: class .hide { ...READ MORE

answered Jun 8, 2020 in Java-Script by Niroj
• 82,840 points
979 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP