How many characters does the facepalm emoji consist of?

The article by Henri Sivonen addresses the important issue of string length in programming and text operations. He begins with an introduction that explains why the length of strings is a critical topic in computer science. Various approaches to measuring string length are discussed, focusing on both memory usage and performance. Sivonen also points out the challenges associated with different encoding systems that can affect the way string length is calculated and interpreted. The article includes significant examples aimed at improving the reader's understanding of the concepts presented. In conclusion, the author summarizes his findings, emphasizing that understanding string length is essential for creating efficient and error-resistant applications.