Javascript typeof usage quiz

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Function Show (){
// If typeof is followed by a parameter, a string of the parameter type is returned.

VaR I =   5.5 ; // Number

VaR J =   " ABC " ; // String
VaR B =   True ; // Boolean

VaR Io =   New Number ( " 5.5 " ); // Object
VaR Jo =   New String ( " ABC " ); // Object
VaR Bo =   New Boolean ( 0 ); // Object

VaR Bo1 = Boolean ( 0 );

Alert ( Typeof Bo1 ); // Boolean

// Alert (typeof alert); // All function types are Function

// Alert (typeof K); // The types of undefined values (or understood as nonexistent) are all undefined.

/*
special values
alert (typeof (NAN )); // number
alert (typeof (infinity); // number
alert (typeof null); // object
*/

}


// Boolean object
// Syntax for creating a Boolean object:
/* New Boolean (value); // Constructor
Boolean (value); // Conversion Function

Parameters:
Value is the value stored by a Boolean object or the value to be converted to a Boolean value.

Return Value:
When called as a constructor (with the new operator), Boolean () converts its parameters into a Boolean value and returns a Boolean object containing the value.

When called as a function (without the new operator), Boolean () only converts its parameters into an original Boolean value and returns this value.

Note: If the value parameter is omitted or set to 0,-0, null, "", false, undefined, Or Nan, the object is set to false. Otherwise, set it to true (even if the value parameter is a string "false ").

*/

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