Bo‘sh maydonni tekshirish
JavaScript yordamida bo‘sh kiritish maydonlari uchun forma validatsiyasini qo‘shishni o‘rganing.
Bo‘sh maydonlar uchun forma validatsiyasi
1-qadam) HTML qo‘shing:
Misol
<form name="myForm" action="/action_page.php" onsubmit="return validateForm()" method="post" required>
Name: <input type="text" name="fname">
<input type="submit" value="Submit">
</form>
2-qadam) JavaScript qo‘shing:
Agar kiritish maydoni (fname) bo‘sh bo‘lsa, bu funksiya ogohlantirish xabarini chiqaradi va formaning yuborilishini oldini olish uchun false qaytaradi:
Misol
function validateForm() {
var x = document.forms["myForm"]["fname"].value;
if (x == "") {
alert("Name must be filled out");
return false;
}
}
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