Results for “Text validation & formatting”
Small, practical examples. Search by task or narrow things down below.
Split simple delimited text in place
C: strtok inserts terminators into a writable buffer and skips repeated delimiter characters.
C✓ Tested
Split text on a simple delimiter
PowerShell: The split operator uses a regular expression; this delimiter has no special regex meaning.
PowerShell✓ Tested
Split text on several separator characters
JavaScript: A regex character class can recognize alternative simple delimiters.
JavaScript✓ Tested
Split text on several separator characters
TypeScript: A regex character class can recognize alternative simple delimiters.
TypeScript✓ Tested
Store a bounded null-terminated text setting
Arduino / C: Write a fixed buffer and explicitly terminate the retrieved copy.
Arduino / C✓ Tested
Store text in a variable
Bash Scripts: Store text in a variable with a small standalone Bash program.
Bash Scripts✓ Tested
Style a control that fails native validation
CSS: Invalid reflects the input’s current constraint-validation result.
CSS✓ Tested
Style placeholder text independently of entered text
CSS: The placeholder pseudo-element affects the hint, while the input rule styles the actual value.
CSS✓ Tested
Style supporting text in italics
CSS: Font-style changes presentation without adding semantic emphasis by itself.
CSS✓ Tested
Trim whitespace around text
Trim whitespace around text in a complete Rust program using the standard library.
Rust✓ Tested
Underline meaningful text
CSS: Learn how to underline meaningful text in a complete browser example.
CSS✓ Tested
Update state shared through context
Update state shared through context with a small React component and explicit browser behavior.
React✓ Tested