Results for “type guard”
Small, practical examples. Search by task or narrow things down below.
Measure a short text value
TypeScript: Read the length of an ASCII string. Non-ASCII text may use multiple code units or bytes depending on the language.
TypeScript✓ Tested
Mutate a struct through a pointer receiver
Mutate a struct through a pointer receiver using a complete Go program with explicit sample inputs.
Go✓ Tested
Name a value that stays fixed
TypeScript: Use a constant declaration or the language’s constant naming convention for a fixed limit.
TypeScript✓ Tested
Normalize identifier case consistently
TypeScript: Use toLowerCase for a simple case-insensitive ASCII identifier lookup.
TypeScript✓ Tested
Pair corresponding array items by position
TypeScript: Validate equal lengths before zipping when missing counterparts would be an error.
TypeScript✓ Tested
Parse an enum name without throwing
C#: Combine TryParse and IsDefined when only named declared values should be accepted.
C#✓ Tested
Pass behavior as a function delegate
C#: Func describes a callable with typed parameters and a return value.
C#✓ Tested
Percent-encode one URL component
TypeScript: encodeURIComponent escapes a parameter value rather than a complete URL.
TypeScript✓ Tested
Perform cleanup even after an exception
C#: A finally block runs after a handled failure as well as after success.
C#✓ Tested
Preserve line breaks while collapsing repeated spaces
CSS: Pre-line retains newlines but does not preserve all whitespace like pre-wrap does.
CSS✓ Tested
Prevent runtime changes to top-level properties
TypeScript: Object.freeze prevents ordinary top-level mutations; Reflect.set reports the rejected update without throwing.
TypeScript✓ Tested
Print a number with two decimal places
TypeScript: Format a small decimal value consistently for display.
TypeScript✓ Tested