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Functions are normally defined in the application's source code. In some situations it is desirable to create functions at run time.
var min = new Function( "x", "y", "return x < y ? x : y;" ); var m = min( 68, 9 ); // m == 9
The first arguments are the names of the parameters; the last argument is a string which contains the function's definition. It is also possible to supply the list of argument names as one comma separated string.
var min = new Function( "x,y", "return x < y ? x : y;" );
Variable numbers of arguments are also supported, using the arguments array, for example:
max = new Function( "var max = 0;" + "for ( var i = 0; i < arguments.length; i++ ) {" + " if ( arguments[ i ] > max ) max = arguments[ i ];" + "}" + "return max;" ); System.println( max( 50, 16, 24, 99, 1, 97 ) ); // Prints 99
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