ixfx
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    Function pingPong

    • Ping-pongs continually back and forth a lower and upper value (both inclusive) by a given interval. Use pingPongPercent for 0-1 ping-ponging

      In a loop:

      for (const c of pingPong(10, 0, 100)) {
       // 0, 10, 20 .. 100, 90, 80, 70 ...
      }

      Manual:

      const pp = pingPong(10, 0, 100);
      let v = pp.next().value; // Call .next().value whenever a new value is needed

      Parameters

      • interval: number

        Amount to increment by. Use negative numbers to start counting down

      • lower: number

        Lower bound (inclusive)

      • upper: number

        Upper bound (inclusive, must be greater than start)

      • Optionalstart: number

        Starting point within bounds (defaults to lower)

      • Optionalrounding: number

        Rounding is off by default. Use say 1000 if interval is a fractional amount to avoid rounding errors.

      Returns Generator<number, never, unknown>

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