Array.prototype.getIndexFromElementWithValue = function (propertyName: string, valueName: string | number)
{
    var returnValue = -1;

    if (this.length == 0)
    {
        return returnValue;
    }
    else
    {
        this.some(function (value, index, array)
        {
            if (value[propertyName] != undefined && value[propertyName] == valueName)
            {
                returnValue = index;
            }

            return returnValue != -1;
        });

        return returnValue;
    }
};