JavaScript and Type Conversion

JavaScript is a dynamic-type language:

We can assign any type of value to a variable. We can also change the type of a variable at any time and any position in the code. Let’s say we have assigned a string value to a variable, and then we want to change the type of that variable to a number.


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let totalPrice = "thousand";
totalPrice = 1000;
console.log(totalPrice);

Task

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A variable named totalDaysInMonth with the assigned string value of thirty has been given to you. Your task is to change the type of the variable from string to a number and display it on the console.

Summary:

The number datatype is for all kinds of numbers like integer or floating-point numbers.
The boolean variables can only have true or false as their values.
The typeof operator allows us to see the type of value stored in a variable.
JavaScript is a dynamic-type language, so we can change the type of data in it.

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Section 3. Chapter 3

JavaScript and Type Conversion

JavaScript is a dynamic-type language:


              123
            
let totalPrice = "thousand";
totalPrice = 1000;
console.log(totalPrice);

Task

Swipe to show code editor

Summary:

The number datatype is for all kinds of numbers like integer or floating-point numbers.
The boolean variables can only have true or false as their values.
The typeof operator allows us to see the type of value stored in a variable.
JavaScript is a dynamic-type language, so we can change the type of data in it.

Switch to desktop for real-world practiceContinue from where you are using one of the options below

Everything was clear?

Thanks for your feedback!

Section 3. Chapter 3

Switch to desktop for real-world practiceContinue from where you are using one of the options below