Underscores in identifiers typing practice
Copy underscore-separated labels without turning the separator into a hyphen or a space. Practise short identifiers and their use in a practical note.
Preview this exercise · 24 words · 176 characters
first_name last_name room_number start_time final_copy draft_notes. Copy each underscore as part of its identifier, then use a space only between the complete displayed groups.
Type the displayed passage in order. Backspace corrects the last character. Paste is disabled. Escape pauses. Control or Command plus Enter restarts. Leaving the input pauses the timer.
How to practise underscores in identifiers
An underscore normally sits low on the line, while a hyphen appears nearer the middle. The sample identifiers have no spaces inside them. Read the group after each underscore before reaching for Shift, and release the modifier before entering its first ordinary letter.
What to check after a run
Check file_name against file-name and file name. They are different copying targets. This exercise does not check whether an identifier would be accepted by a particular application.
Read the three original exercises
Preview the exact targets before choosing a run. Counts include spaces and punctuation after whitespace normalisation.
1. Find the pattern
first_name last_name room_number start_time final_copy draft_notes. Copy each underscore as part of its identifier, then use a space only between the complete displayed groups.
2. Connect the movement
The sample fields are item_code, order_date, and review_status. The note says to keep source_file beside backup_copy. These labels are invented examples for practising a low separator.
3. Apply it in context
During the file check, Noor looked for project_notes and final_summary. A third file, meeting_agenda, was still in the draft folder. She copied each identifier into the handover note without replacing its underscores with spaces, then compared the result with the original list.
Original practice lesson added 26 October 2026. Educational transcription practice; no professional assessment or qualification.