Tunjukkan butang apabila pembilang aksara mencapai 100
Cuba membuat halaman kuiz di mana saya perlu menunjukkan butang "serahkan" selepas menulis bilangan minimum aksara dalam kawasan teks. Inilah yang saya cuba tetapi tidak berjaya.
<textarea name="tweet" id="textbox"
rows="13" cols="70" placeholder="" maxlength="250"></textarea><br>
<span id="char_count">0/250</span>
<script>
let textArea = document.getElementById("textbox");
let characterCounter = document.getElementById("char_count");
const minNumOfChars = 0;
const maxNumOfChars = 250;
var text = document.getElementById("buton");
const countCharacters = () => {
let numOfEnteredChars = textArea.value.length;
let counter = minNumOfChars + numOfEnteredChars;
characterCounter.textContent = counter + "/250";
};
textArea.addEventListener("input", countCharacters);
if (counter > 100 ) {
text.style.display = "block";
}
else {
}
</script>
<br><br><br>
<div>
<button class="NextStep" id="buton" style="display:none"
onclick="NextStep()">Finalizare Curs</button>
</div>
<script>
function NextStep() {
location.href =("Cursuri.html")
}
</script>