JSFiddle - React, Tailwind, and code Playground
by Stephen
HTML
<!DOCTYPE html>
<html>
<head>
<script>
function validateForm() {
var x = document.getElementById("test");
if (x.value === "") {
alert("Name must be filled out");
return false;
}
console.log(x);
}
</script>
</head>
<body>
<form name="myForm" action="/action_page.php\" onsubmit="return validateForm()" method="post">
Name: <input type="text" name="nameTest" id="test">
<button type="submit" value="Submit">Click me</button>
</form>
</body>
</html>