我如何从 textarea 获取价值并检查它？

Question

Here's my html code:

 if(document.getElementById("txtArea").value = "मैं ये क्यों करू"){ document.getElementById("hidden").innerHTML = "Correct answer!"; }

 <h2>Translate this english paragraph to hindi</h2> <h3>Why should I do this?</h3> <textarea id="txtArea" placeholder="Write the correct hindi translation here"></textarea> <h1 id="hidden" style="color:green"></h1>

Actually I am trying to get the value that user had inputted in my textarea. And check whether it(value entered by user) is right or not. How will do it?

Answer 1

Listen to textarea input change

 const txtAreaEl = document.getElementById("txtArea") txtAreaEl.addEventListener('keyup', function(event) { document.getElementById("hidden").innerHTML = event.target.value === "मैं ये क्यों करू" ? "Correct answer!" : null; })

 <h2>Translate this english paragraph to hindi</h2> <h3>Why should I do this?</h3> <textarea id="txtArea" placeholder="Write the correct hindi translation here"></textarea> <h1 id="hidden" style="color:green"></h1>