If not we can use let. We should only use var if the programme has to support older verson of JavaScript code. The data or values stored in the variables are data and the types of data stored in them ...

What is a data type? At the machine level, all data on a computer is bits — 1s and 0s. Humans, it turns out, prefer not to work so close to the metal, so we have data types for describing different ...

Variables hold a wide variety of information temporarily. The JavaScript data types that can be stored in a variable include: JavaScript variables can hold a few other kinds of data, but these are ...

A new JavaScript API will be available to preview inside Excel later this month, which will let developers create these custom data types for inputs and outputs and enable custom functions.