Before we start coding, we should first set the foundations that will allow us to properly set up formats as well as ways of handling values, for example, nulls or dates. This is important because different regions have different formats. Let's take the United States as an example. Numbers in the United States use commas to represent thousands and dots to represent decimals. For example, one thousand and thirty hundredths in its numerical form is 1,000.30. However, most of the countries in Latin America would use dots as a thousand separator and commas for hundredths separators: 1.000,30.
Another very important value where the format changes depending on the region is the date. Dates can be represented in different ways. For example, 2018-08-08 where we have four digits for the year, two for the month, and two for the day, or 30-01-2019...