Let’s now come to the example usage of the characters we listed in the table on this post. We will use the “d” and “+” characters to find only numbers in the content entered.


This example only matches the numbers 1234, 321 789. With the setting “g”, we expressed the comprehensive search, not just once.

At the beginning of the “+” character, which denotes one or more repetitions, we wrote “d”, which denotes any number. For a more useful example, let’s catch the expression written in date format in the content entered.


Do not scare yourself and be confused, you can summarize what happened when you extract it by examining the relevant places. d{2} the number 2, after. We expressed the point . with the escape character, and the number 4 in the last part. So it will match content like 19.03.2021.