It is perfectly legal to assign a number to a variable and then assign a string to the same variable as followsexample

i = 10;

i = “string”;

This is called variable typing

In JavaScript, variable typing refers to the dynamic typing nature of the language. This means that variables in JavaScript can hold values of any data type, and the data type of a variable can change during the execution of a program.

For example, you can declare a variable and assign it a string value:

javascript

var myVariable = "Hello";

Later in the code, you can assign it a numeric value:

javascript

myVariable = 42;

This dynamic typing provides flexibility but can also lead to unexpected behavior if not handled carefully. Developers need to be mindful of the data types they are working with and ensure proper type checking and conversion when necessary.