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.
let totalPrice = "thousand"; totalPrice = 1000; console.log(totalPrice);
Swipe to start coding
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.
Ratkaisu
Summary:
The
numberdatatype is for all kinds of numbers like integer or floating-point numbers.The
booleanvariables can only havetrueorfalseas their values.The
typeofoperator 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.
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoista