Results for “fold”
Small, practical examples. Search by task or narrow things down below.
Normalize ASCII text to lowercase
SQLite: LOWER is useful for display normalization; indexed case-insensitive search depends on the database collation and schema.
SQLite✓ Tested
Normalize ASCII text to uppercase
SQLite: UPPER changes character case under the database’s text rules.
SQLite✓ Tested
Number a sorted result
Assign a row number without changing stored data.
row_number✓ Tested
Number items while iterating
Number items while iterating in a complete Rust program using the standard library.
Rust✓ Tested
Observe command substitution’s trailing-newline removal
Bash Scripts: Command substitution removes trailing newlines while preserving embedded ones.
Bash Scripts✓ Tested
Observe context cancellation
Observe context cancellation using a complete Go program with explicit sample inputs.
Go✓ Tested
Own a heap-allocated value with Box
Own a heap-allocated value with Box in a complete Rust program using the standard library.
Rust✓ Tested
Pair corresponding values
Pair corresponding values in a complete Rust program using the standard library.
Rust✓ Tested
Pair employees with their managers
SQLite: Alias a table twice to represent two different roles in one relationship.
SQLite✓ Tested
Parse a Boolean configuration value
Parse a Boolean configuration value using a complete Go program with explicit sample inputs.
Go✓ Tested
Parse a Boolean literal
Parse a Boolean literal in a complete Rust program using the standard library.
Rust✓ Tested
Parse a date with a Go layout
Parse a date with a Go layout using a complete Go program with explicit sample inputs.
Go✓ Tested