August 1999
Intermediate to advanced
1488 pages
72h 53m
English
Content preview from Pure JavaScript
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Function.caller
JavaScript 1.1+, JScript 1.0+ Nav3+, NES2+, IE 3+, Opera3+ Syntax
function.caller
Description:
The caller property of the Function object is used to reference the function that called the currently executing function.
Example
Listing 6.129 shows how the caller property is used to get the name of the function calling John().
Listing 6.129 Accessing the caller Property
<html>
<body>
<script lanuguage="JavaScript1.1">
<!–– Hide
// Define a simple function Alice(), which calls the John() function.
function Alice(){
var Boss = true;
John();
}
// function outputs its caller
function John(){
myBoss = John.caller.name;
document.write("The boss is: " + myBoss + "<br>");
}
// End Hide ––>
</script>
</body>
</html>
|
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