我刚刚开始使用Phonegap,我想在用户单击文本框时清除文本框内容。
HTML:
<input type="text" class="clear" id="dateVal" name="date" value="date" onblur="clear();"/>/
JavaScript
function clear() {
document.getElementsByTagName('input').value = '';
}
但是 clear 函数没有被调用。另外,只是尝试alert
输入clear()
功能(没有帮助)。其他一切正常。任何帮助,将不胜感激。
完整的 HTML 代码:
<!DOCTYPE html> <html> <head>
<title>Age Calculator</title>
<script type="text/javascript" charset="utf-8" src="cordova-1.8.1.js"></script>
<script type="text/javascript" charset="utf-8">
document.addEventListener("deviceready",onDeviceReady,false);
function onDeviceReady() {
alert('welcome');
}
function calAge() {
var x = confirm('Click here to calculate the age');
if(x == true) {
document.getElementById('ageId').style.display = block';
} else {
navigator.app.exitApp(); }
}
function submitValues() {
var todaysDate = new Date();
var y = todaysDate.getFullYear();
var m = todaysDate.getMonth() + 1;
var d = todaysDate.getDate() + 1;
var myYear = document.getElementById('yearVal').value;
var myMonth = document.getElementById('monthVal').value;
var myDate = document.getElementById('dateVal').value;
var myYear = (y-myYear);
var myMonth = (m-myMonth);
var myDate = (d-myDate);
document.getElementById('ageId').style.display = 'none';
document.getElementById('result').innerHTML = 'You are '+myYear+'years '+myMonth+' months and '+myDate + ' days old :-)';
} function clear() { document.getElementsByTagName('input').value = ''; }
</script> </head> <body>
<button onclick="calAge();">Age Calculator</button> <br>
<div id="ageId" style="display:none;">
<b>Please Enter your Date Of Birth in (dd/mm/yyyy) format:</b>
<input type="text" class="clear" id="dateVal" name="date" value="date" onblur="clear();"/>/
<input type="text" class="clear" id="monthVal" name="month" value="month" />/
<input type="text" class="clear" id="yearVal" name="year" value="year" />
<input type="button" value="submit" onclick = "submitValues();" />
</div>
<div id="result">
</div> </body> </html>