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.
123let 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.
Рішення
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.
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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.
123let 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.
Рішення
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.
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