repl.txt

{{alias}}( x, predicate[, thisArg] )
    Counts the number of elements in an array that satisfy the provided testing 
    function.

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

    predicate: Function
        Testing function.
    
    thisArg: any (optional)
        Execution context.

    Returns
    -------
    out: integer
        Number of truthy values for which the testing function evaluates to 
        true.

    Examples
    --------
    > var out = {{alias}}( [ 0, 1, 1 ], function predicate( v ) {
    ...     return v === 1;
    ... } )
    2

    See Also
    --------