Function() (capital F) : Function Object « Function « JavaScript Tutorial

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JavaScript Tutorial » Function » Function Object 
7. 2. 1. Function() (capital F)

Syntax

var variable = new Function()
    var variable = new Function(int)
    var variable = new Function(arg1, ..., argN)

Function() is a constructor that creates a Function object.

Properties and Methods of the Function Object

Property/MethodDescription
apply()Applies method to multiple objects
argumentsArray reflecting function arguments
arityNumber of arguments expected by function
call()Allows calling of methods belonging to other functions
callerReference to function caller
prototypePrototype for a class of objects
toSource()Created copy of function object
toString()Converts function back to string which defines it


The following example sets the Background Color with a New Function Object

<html>
    <script language="JavaScript">
    <!--
    // Create a function to change background color
    var setBGColor = new Function(document.bgColor='blue');
    -->
    </script>
</html>
7. 2. Function Object
7. 2. 1. Function() (capital F)
7. 2. 2. Function.apply()
7. 2. 3. Function.arguments
7. 2. 4. Function.arity
7. 2. 5. Function.call()
7. 2. 6. Function.caller
7. 2. 7. Function.prototype
7. 2. 8. Function.toSource()
7. 2. 9. Function.toString()
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