Function range

  • range(start: number, end?: number, step?: number): number[]

  • Creates an array of numbers (positive and/or negative) progressing from start up to, but not including, end. A step of -1 is used if a negative start is specified without an end or step. If end is not specified, it's set to start, and start is then set to 0.

    Note: JavaScript follows the IEEE-754 standard for resolving floating-point values which can produce unexpected results.

    Parameters

    • start: number

      The start of the range.

    • Optionalend: number

      The end of the range.

    • Optionalstep: number

      The value to increment or decrement by.

    Returns number[]

    Returns the range of numbers.

    Since

    5.7.0

    See

    [[inRange]],[[rangeRight]]

    Example

    range(4)
    // => [0, 1, 2, 3]

    range(-4)
    // => [0, -1, -2, -3]

    range(1, 5)
    // => [1, 2, 3, 4]

    range(0, 20, 5)
    // => [0, 5, 10, 15]

    range(0, -4, -1)
    // => [0, -1, -2, -3]

    range(1, 4, 0)
    // => [1, 1, 1]

    range(0)
    // => []

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