How to check if an element exists in jQuery?
When we use dynamic elements in jQuery then sometimes you should check whether elements exits or not before performing a certain action on that element. In such cases, you can use jQuery .length property to determine if your selector matched anything in the webpage.
jQuery show() method
In jQuery , it isn't always necessary to test whether an element exists or not . The following code will show the element if it exists, and do nothing (with no errors) if it does not exists.
- jQuery Interview Questions FAQ - 1
- jQuery Interview Questions FAQ - 2
- Is jQuery a programming language?
- Why do we need to go for JQuery?
- How to check jQuery version?
- How to multiple version of jQuery?
- What is jQuery CDN?
- Advantages of minified version of JQuery
- How do I check if the DOM is ready?
- How to Use the jQuery load() Method
- Difference between document.ready() and body onload()?
- What is the use of param() method?
- How to work with jQuery parent(), children() and siblings()?
- Difference between parent() and parents() in jQuery?
- What does jQuery data() function do?
- How do I check if an HTML element is empty using jQuery?
- How to run an event handler only once in jQuery?
- How to disable/enable an element with jQuery
- Hide and show image on button click using jQuery
- Difference Between Prop and Attr in jQuery
- How do I check if an element is hidden in jQuery?
- What happen if you return false from a jQuery event handler?
- What is each() function in jQuery? How do you use it?
- Which one is more efficient, document.getElementbyId( "myId") or $("#myId)?
- What is the difference between $.map and $.grep in jQuery
- What is the use of serialize method in jQuery
- What is the use of clone method in jQuery?
- What is event.PreventDefault in jQuery?
- Difference between event.PreventDefault and event.stopPropagation?
- What are deferred and promise object in jQuery?