Type testing function
- Determine the type of an object
- Useful for optional parameters & validation
Example
In this example isNumeric() and isFunction() are used as Type testing function
<head>
<title></title>
<script src="script/jquery-1.7.1.js" type="text/javascript"></script>
</head>
<body>
<script type="text/javascript">
function callAnotherFunction(arg1,arg2,arg3) {
var times = $.isNumeric(arg1) ? arg1 : 3;
var delay = $.isNumeric(arg2) ? arg2 : 1000;
var functiontocall = $.isFunction(arg1) ? arg1 : $.isFunction(arg2) ? arg2 : arg3;
var i = 0;
(function loopIt() {
i++;
functiontocall();
if(i<times) {
setTimeout(loopIt, delay);
}
})();
}
function functionToCall() {
$('#output').append("<br/>fuction called");
}
$(document).ready(function () {
callAnotherFunction(3, 500, functionToCall);
});
</script>
<div id="output"></div>
</body>
</html>
<title></title>
<script src="script/jquery-1.7.1.js" type="text/javascript"></script>
</head>
<body>
<script type="text/javascript">
function callAnotherFunction(arg1,arg2,arg3) {
var times = $.isNumeric(arg1) ? arg1 : 3;
var delay = $.isNumeric(arg2) ? arg2 : 1000;
var functiontocall = $.isFunction(arg1) ? arg1 : $.isFunction(arg2) ? arg2 : arg3;
var i = 0;
(function loopIt() {
i++;
functiontocall();
if(i<times) {
setTimeout(loopIt, delay);
}
})();
}
function functionToCall() {
$('#output').append("<br/>fuction called");
}
$(document).ready(function () {
callAnotherFunction(3, 500, functionToCall);
});
</script>
<div id="output"></div>
</body>
</html>
Output
fuction called
fuction called
fuction called
fuction called
fuction called
No comments:
Post a Comment