repl.txt

{{alias}}( x, searchElement, fromIndex, equalNaNs )
    Returns the index of the first element which equals a provided search
    element.

    If provided an array-like object having an `indexOf` method and `equalNaNs`
    is `false`, the function defers execution to that method and assumes that
    the method has the following signature:

      x.indexOf( searchElement, fromIndex )

    If provided an array-like object without an `indexOf` method or if
    `equalNaNs` is `true`, the function performs a linear scan and returns
    immediately upon finding a match.

    If unable to find an element which equals a provided search element, the
    function returns -1.

    Parameters
    ----------
    x: ArrayLikeObject
        Input array.

    searchElement: any
        Search element.

    fromIndex: integer
        Starting index (inclusive). If less than zero, the starting index is
        resolved relative to the last array element, with the last array element
        corresponding to `fromIndex = -1`.

    equalNaNs: boolean
        Boolean indicating whether NaNs should be considered equal.

    Returns
    -------
    out: integer
        Index or -1.

    Examples
    --------
    > var out = {{alias}}( [ 1, 2, 3, 4 ], 3, 0, false )
    2

    See Also
    --------