Results for “Text validation & formatting”
Small, practical examples. Search by task or narrow things down below.
Trim surrounding whitespace from an Arduino String
Arduino / C: String.trim modifies the object in place.
Arduino / C✓ Tested
Trim whitespace around a string
PowerShell: The Trim method removes surrounding whitespace while preserving the middle of the string.
PowerShell✓ Tested
Use a literal value in a regular expression
PowerShell: Regex.Escape prevents a literal dot or other metacharacter from changing the match.
PowerShell✓ Tested
Use React 19’s provider shorthand
Use React 19’s provider shorthand with a small React component and explicit browser behavior.
React✓ Tested
Validate a finite numeric value without coercion
JavaScript: Number.isFinite rejects numeric strings as well as NaN and infinity.
JavaScript✓ Tested
Validate a finite numeric value without coercion
TypeScript: Number.isFinite rejects numeric strings as well as NaN and infinity.
TypeScript✓ Tested
Validate an unknown value with a type guard
Check a field before treating unknown data as a typed object.
unknown✓ Tested
Validate UTF-8 bytes
Validate UTF-8 bytes using a complete Go program with explicit sample inputs.
Go✓ Tested
Write a multiline string without expanding variables
PowerShell: A single-quoted here-string preserves dollar signs literally.
PowerShell✓ Tested
Add days to a date
Use DATEADD for date arithmetic.
DATEADD✓ Tested
Add days to a date
Use a date modifier for calendar arithmetic.
date✓ Tested
Build a JSON array from rows
Aggregate ordered text values into JSON.
json_group_array✓ Tested