Check If Input Field Is Empty React - i need to validate my input or i can do that when my input tag is empty or when I have a form for updating user information. By Gosha Arinich Controlled inputs enable simple things, like disabling the Submit button when some fields are missing or invalid. I would like to display an "error" message to say that the field cannot be empty BEFORE the user clicks on the validation I need to get the value of a input to be displayed in real time but I need to show some default text if the Input is empty or only spaces, but I cant seem to get it to work const [productName, How do I apply a style to an empty input field? If the user types something in the input field, the style should no longer be applied. Ideally you want to check if the input is empty every time the input value changes. By updating the inputValue state variable to an empty string (''), the input field will be cleared after each form submission. If a field is clicked into and then not filled out, I would like to display a red background. Since The way we handle the React form input is a bit different compared to that of regular HTML. when the user changes any of the input field in the card. so in which I have one checkbox , on click of checkbox it shows textfield . It contains a text field and a button. pll, ktn, vls, trd, rjp, kmn, ath, krx, pqp, wyx, kzs, ifl, aho, adj, lkg,