How to contact whatsapp numbers from your desktop?

Sometimes, people don't like to use their phone numbers to contact people on WhatsApp maybe they don't like to share their number just their email, so this is an easy way to hit any number up by connecting to https://wa.me/number.
Don't forget to mention the country code of the text receiver. For example, you could write https://wa.me/+21260000000 if you are from Morroco. etc.