What are some examples of dynamic type checking in programming?

What are some examples of dynamic type checking in programming?

Dynamic type checking is a feature in some programming languages where the type of a variable is checked at runtime. Examples include Python, JavaScript, and Ruby.

Can you show me a Python example of dynamic type checking?

Sure! In Python, you can check the type of a variable using the type() function. For example:

x = 10
if type(x) is int:
    print('x is an integer')

What about JavaScript? How does it handle dynamic type checking?

In JavaScript, all variables are dynamically typed. You can check the type using the typeof operator. For example:

let x = 'Hello';
if (typeof x === 'string') {
    console.log('x is a string');
}

Are there any drawbacks to dynamic type checking?

Yes, dynamic type checking can lead to runtime errors that are harder to debug, as type-related issues may not be caught until the code is executed.