Jelly

Jelly's custom code page and terse syntax minimize character count, essential for code golf, as seen in examples where single commands perform complex operations like array multiplication.

Built on J's array model, it enables concise manipulation of entire data structures without explicit loops, demonstrated in the quickstart with operations on arrays.

The interpreter on Try It Online allows instant testing without local setup, lowering the barrier for casual code golf participation and learning.

Supports multiple input methods like command-line arguments and STDIN, providing versatility for different problem setups, as detailed in the usage options.