javascript check html form not empty code example
Example 1: javascript form submit on button click check if required fields not empty
const checkEmpty = document.querySelector('#checkIt');
checkEmpty.addEventListener('input', function () {
if (checkEmpty.value &&
checkEmpty.value.length > 0 &&
checkEmpty.value.trim().length > 0
)
{ console.log('value is: '+checkEmpty.value);}
else {console.log('No value');
}
});
Example 2: javascript form submit on button click check if required fields not empty
<input type="text" id="checkIt" required />