<!DOCTYPE html>
<html>
<head>
<link href='https://fonts.googleapis.com/css?family=Odor+Mean+Chey' rel='stylesheet'>
</head>
<body style="font:14px/1.5 'Odor Mean Chey'">
<script>
function validateForm() {
var valf = document.forms["myForm"]["ftextarea"].value;
if(valf == ""){
alert("អ្នកត្រូវសរសេរអត្ថបទអ្វីមួយ។");
return false;
}
}
</script>
</body>
</html>
នៅលើបន្ទាត់លេខ 9 គឺជាការបង្កើតធាតុ HTML មានប្រភេទជា textarea មួយ មានឈ្មោះថា ftextarea និងមានអត្តសញ្ញាណជា myTextarea ៕
Textarea Object Properties
| Property | Description |
|---|---|
| autofocus | Sets or returns whether a text area should automatically get focus when the page loads |
| cols | Sets or returns the value of the cols attribute of a text area |
| defaultValue | Sets or returns the default value of a text area |
| disabled | Sets or returns whether the text area is disabled, or not |
| form | Returns a reference to the form that contains the text area |
| maxLength | Sets or returns the value of the maxlength attribute of a text area |
| name | Sets or returns the value of the name attribute of a text area |
| placeholder | Sets or returns the value of the placeholder attribute of a text area |
| readOnly | Sets or returns whether the contents of a text area is read-only |
| required | Sets or returns whether the text area must be filled out before submitting a form |
| rows | Sets or returns the value of the rows attribute of a text area |
| type | Returns the type of the form element the text area is |
| value | Sets or returns the contents of a text area |
| wrap | Sets or returns the value of the wrap attribute of a text area |
