Javascript Form - 如何處理TextArea on change事件
我們想知道如何處理TextArea on change事件。
<html>
<head>
<script type="text/javascript" language="javascript">
function DisplayValue(){
if(document.MyForm.MyTextField.value!==""){
console.log("The value entered was \n" + document.MyForm.MyTextField.value);
}
else{
console.log("The text field was empty!\nPlease enter your name.");
}
}
</script>
</head>
<body>
<form name="MyForm" action="" method="Post" onsubmit="DisplayValue()">
<input type="text" name="MyTextField"/><P>Enter your name</p>
<input type="submit" value="Click to Submit"/>
</form>
</body>
</html>
The code above is rendered as follows:
【text_input】
