Results for “Text cleanup & matching”
Small, practical examples. Search by task or narrow things down below.
Clean up a subscription when a child unmounts
Clean up a subscription when a child unmounts with a small React component and explicit browser behavior.
React✓ Tested
Clean up a temporary directory automatically
Use an EXIT trap so temporary files are removed when the script ends.
mktemp✓ Tested
Collapse repeated spaces
Linux Commands: Use tr -s when repeated occurrences of a character should become one.
Linux Commands✓ Tested
Compare a command case-sensitively
Arduino / C: strcmp returns zero when both null-terminated strings match.
Arduino / C✓ Tested
Convert tab stops to spaces
Linux Commands: Use expand with a fixed tab width when preparing plain-text alignment.
Linux Commands✓ Tested
Copy a file into an image
Include a small application file during the build.
Dockerfile✓ Tested
Copy a string with a guaranteed terminator
Arduino / C: Reserve one character for the terminator when copying a bounded string.
Arduino / C✓ Tested
Count Unicode code points
Java: Use codePointCount when supplementary characters should count as one rather than two UTF-16 units.
Java✓ Tested
Count Unicode code points in a string
JavaScript: String iteration combines surrogate pairs, unlike the UTF-16 length property.
JavaScript✓ Tested
Count Unicode code points in a string
TypeScript: String iteration combines surrogate pairs, unlike the UTF-16 length property.
TypeScript✓ Tested
Detect truncated formatted output
Arduino / C: snprintf returns the length it would have written, excluding the null terminator.
Arduino / C✓ Tested
Discard incidental output from a setup command
PowerShell: Out-Null prevents setup objects from becoming part of a function or script’s useful result.
PowerShell✓ Tested