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How to use typeof with arguments in JavaScript?
Arguments object is the arguments passed to a function. It is a variable accessible for all functions. Let’s say two arguments are passed to a function, then you can access them like the following:
arguments[0] arguments[1]
In the same way, you can use a type of with arguments in JavaScript. Firstly, let’s see how to work with the type of. The type of operator is a unary operator that is placed before its single operand, which can be of any type.
Example
The following code shows how to implement type of operator
<html> <body> <script> var a = 20; var b = "String"; var linebreak = "<br />"; result = (typeof b == "string" ? "B is String" : "B is Numeric"); document.write("Result => "); document.write(result); document.write(linebreak); result = (typeof a == "string" ? "A is String" : "A is Numeric"); document.write("Result => "); document.write(result); document.write(linebreak); </script> </body> </html> Let us now see how to use typeof with arguments in JavaScript. The typeof arguments will return an object like this:
document.write(typeof arguments);
Let’s say you have two arguments, then with typeof, you can refer them like the following, which will return the typeof arguments.
document.write(typeof arguments[0]); document.write(typeof arguments[1]);
Updated on: 2020-01-09T06:28:04+05:30
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