Results for “Array transformations”
Small, practical examples. Search by task or narrow things down below.
Find a value in a small lookup table
Arduino / C: A linear scan is simple and predictable for a small fixed array.
Arduino / C✓ Tested
Find the first matching stream value
Java: Use findFirst and an explicit default for an empty result.
Java✓ Tested
Find the first matching value
Find the first matching value in a complete Rust program using the standard library.
Rust✓ Tested
Find the position of a matching item
JavaScript: findIndex returns -1 when the predicate matches nothing.
JavaScript✓ Tested
Find the position of a matching item
TypeScript: findIndex returns -1 when the predicate matches nothing.
TypeScript✓ Tested
Flatten a single nesting level
JavaScript: flat defaults to a depth of one and creates a new array.
JavaScript✓ Tested
Flatten a single nesting level
TypeScript: flat defaults to a depth of one and creates a new array.
TypeScript✓ Tested
Flatten nested collections
Java: Use flatMap to concatenate nested Java lists into one stream.
Java✓ Tested
Flatten nested collections
Flatten nested collections in a complete Rust program using the standard library.
Rust✓ Tested
Flatten nested collections with SelectMany
C#: Concatenate the items from several sequences into one sequence.
C#✓ Tested
Generate a bounded integer range
JavaScript: Array.from supplies each output position to its mapping function.
JavaScript✓ Tested
Generate a bounded integer range
TypeScript: Array.from supplies each output position to its mapping function.
TypeScript✓ Tested