JavaScript Tutorial in Hindi - JavaScript Tutorial in Hindi for Beginners [Part 42] - Query Selector in JavaScript

#Javascript #Tutorial #Hindi Link for Complete JavaScript Tutorial in Hindi for Beginners: https://www.youtube.com/playlist?list=PLjpp5kBQLNTSvHo6Rp4Ky0X8x_MabmKye Link for Complete HTML and CSS Tutorial in Hindi for Beginners: https://www.youtube.com/playlist?list=PLjpp5kBQLNTSdLVVjU_kea8J8lP24ZseT In this video i will talk about Query Selector in JavaScript The querySelector() method returns the first element that matches a specified CSS selector(s) in the document. Note: The querySelector() method only returns the first element that matches the specified selectors. To return all the matches, use the querySelectorAll() method instead. If the selector matches an ID in document that is used several times (Note that an "id" should be unique within a page and should not be used more than once), it returns the first matching element. Return Value: A NodeList object, representing the first element that matches the specified CSS selector(s). If no matches are found, null is returned. Throws a SYNTAX_ERR exception if the specified selector(s) is invalid. Please subscribe to watch more videos like this: https://www.youtube.com/channel/UCWCGvAu1NDCldmLasELk62g?sub_confirmation=1 Join this channel to support Tech Gun: https://www.youtube.com/channel/UCWCGvAu1NDCldmLasELk62g/join