Functionality:Through this program, the user can input some text in the text box which on clicking the 'Submit' button is displayed on the screen. It displays an error message if no text is entered. Languages and concepts: HTML CSS Javascript .querySelector() .addEventListener() event.preventDefault() element.classList.add('className') element.classList.remove('className') setTimeOut(function(), timeInMilliseconds) element.textContent() You can interact with the project on […]
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