September 2024
Beginner to intermediate
985 pages
35h 37m
English
You now know how to define variables with different data types and how to store values in them. Thus, the foundation for programming has been laid. Usually, however, you don’t want only to store data in a program, but also to work with this data or change and combine it to obtain new data. You might want to calculate shipping costs based on the items in a shopping cart when implementing a store page, or to personalize a newsletter with the name of the recipient, adding a personal greeting such as "Your personal newsletter, John Doe." In JavaScript (and in programming in general), you use operators to achieve this.
From mathematics, you may remember the term expression. A mathematical formula, like 5 * ...
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