Results for “du”
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
Name a value that stays fixed
TypeScript: Use a constant declaration or the language’s constant naming convention for a fixed limit.
TypeScript✓ Tested
Narrow a union using typeof
Handle text and numeric values with separate branches.
union✓ Tested
Narrow an object using a type pattern
C#: A successful is pattern introduces a strongly typed local variable.
C#✓ Tested
Normalize a path without touching the filesystem
C++: lexically_normal removes redundant dot components using path syntax alone.
C++✓ Tested
Normalize identifier case consistently
TypeScript: Use toLowerCase for a simple case-insensitive ASCII identifier lookup.
TypeScript✓ Tested
Normalize relative path components
Java: Path.normalize removes redundant dot components without accessing the filesystem.
Java✓ Tested
Pair corresponding array items by position
TypeScript: Validate equal lengths before zipping when missing counterparts would be an error.
TypeScript✓ Tested
Percent-encode one URL component
TypeScript: encodeURIComponent escapes a parameter value rather than a complete URL.
TypeScript✓ Tested
Preconfigure some function arguments
Python: Use partial to produce a callable with selected arguments already bound.
Python✓ 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 floating-point value with fixed precision
Choose the number of decimal places in serial output.
float✓ Tested