Why coding is a different typing skill than prose, which characters actually slow programmers down, and how to practice the parts general typing tests never cover.
A programmer who types 90 WPM on a prose typing test can still feel slow while coding, because code and prose stress completely different parts of typing skill. Punctuation density, symbol reaches, and constant Shift-key use dominate code in a way normal sentences never do.
English prose is mostly lowercase letters and spaces, with punctuation appearing occasionally. Code is the opposite: brackets, braces, semicolons, operators like => and ||, and constant capitalization for camelCase variables mean your pinky fingers (which handle Shift, brackets, and most punctuation) are doing far more work per character than they do in ordinary writing.
This is why practicing only on prose plateaus a programmer's real-world typing speed — the bottleneck isn't the letters, it's the symbols and modifier keys that prose practice barely touches.
Typing tests written in plain English don't build the reflexes above at all, because the reflex being built is specific to the actual character sequences. Practicing on real snippets — function definitions, SQL queries, JSX, common language idioms — trains the exact finger patterns that show up while actually coding.
TypeMaster's Code Typing mode uses real, syntactically valid snippets across multiple languages for exactly this reason, rather than generic paragraphs with a few brackets thrown in.
Raw typing speed is only half the equation for a programmer — word-jump navigation (Ctrl/Option + Arrow), quick-select shortcuts, and multi-cursor editing all reduce the total number of keystrokes needed in the first place. Faster typing and fewer necessary keystrokes stack together, which is why experienced programmers often feel dramatically faster than their raw WPM number would suggest.