Range Iterator (Deno)

⚖️ MIT

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A Deno module to iterate between range.

🔰 Begin

Deno

• Target Version: >= v1.34.0
• Require Permission: N/A
• Domain/Registry:
  • Deno Land

    import ... from "https://deno.land/x/range_iterator[@<Tag>]/mod.ts";

  • DenoPKG

    import ... from "https://denopkg.com/hugoalh-studio/range-iterator-deno[@<Tag>]/mod.ts";

  • GitHub Raw [Require Tag]

    import ... from "https://raw.githubusercontent.com/hugoalh-studio/range-iterator-deno/<Tag>/mod.ts";

  • Pax

    import ... from "https://pax.deno.dev/hugoalh-studio/range-iterator-deno[@<Tag>]/mod.ts";

ℹ️ Notice: Although it is recommended to import main module with path mod.ts in general, it is also able to import part of the module with sub path if available, but do not import if:

• it’s file path has an underscore prefix (e.g.: _foo.ts, _util/bar.ts), or
• it is a benchmark or test file (e.g.: foo.bench.ts, foo.test.ts), or
• it’s symbol has an underscore prefix (e.g.: export function _baz() {}).

These elements are not considered part of the public API, thus no stability is guaranteed for them.

🧩 API

• function rangeIterator(start: bigint, end: bigint, step?: RangeIteratorOptions<bigint>["step"]): Generator<bigint, void, unknown>;
  function rangeIterator(start: number, end: number, step?: RangeIteratorOptions<number>["step"]): Generator<number, void, unknown>;
  function rangeIterator(start: string, end: string, step?: RangeIteratorOptions<string>["step"]): Generator<string, void, unknown>;
  function rangeIterator(start: bigint, end: bigint, options?: RangeIteratorOptions<bigint>): Generator<bigint, void, unknown>;
  function rangeIterator(start: number, end: number, options?: RangeIteratorOptions<number>): Generator<number, void, unknown>;
  function rangeIterator(start: string, end: string, options?: RangeIteratorOptions<string>): Generator<string, void, unknown>;

• interface RangeIteratorOptions<T> {
    /**
    * Whether to exclusive end.
    * @default false
    */
    endExclusive?: boolean;
    /**
    * Step of decrement/increment.
    * @default 1n // Big integer.
    * @default 1 // Number/String.
    */
    step?: T extends bigint ? bigint : number;
  }

ℹ️ Notice: Documentation is included inside the script file, can view it via:

• Deno CLI deno doc
• Deno Doc Land

✍️ Example

• import rangeIterator from "https://raw.githubusercontent.com/hugoalh-studio/range-iterator-deno/main/mod.ts";
  
  Array.from(rangeIterator(1, 9));
  //=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
  
  Array.from(rangeIterator(1n, 9n, { endExclusive: true }));
  //=> [1n, 2n, 3n, 4n, 5n, 6n, 7n, 8n]
  
  Array.from(rangeIterator(1, 9, { step: 0.5 }));
  //=> [1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9]
  
  Array.from(rangeIterator("a", "z"));
  //=> ["a", "b", "c", ... +20 ..., "x", "y", "z"]
  
  Array.from(rangeIterator(9, 1));
  //=> [9, 8, 7, 6, 5, 4, 3, 2, 1]
  
  Array.from(rangeIterator(9n, 1n, { endExclusive: true }));
  //=> [9n, 8n, 7n, 6n, 5n, 4n, 3n, 2n]
  
  Array.from(rangeIterator(9, 1, { step: 0.5 }));
  //=> [9, 8.5, 8, 7.5, 7, 6.5, 6, 5.5, 5, 4.5, 4, 3.5, 3, 2.5, 2, 1.5, 1]
  
  Array.from(rangeIterator("z", "a"));
  //=> ["z", "y", "x", ... +20 ..., "c", "b", "a"]

🔗 Other Edition

• NodeJS