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# lr.get_attrib_double

Returns a double type value of a parameter passed to the script run.

## JavaScript

    function lr.get_attrib_double(  parameter  )

## VBScript

    Function lr.get_attrib_double(  parameter  )

Command Line Parsing Functions

## Arguments

Name | Comments
--- | ---
parameter | The name of a parameter that can be interpreted as a double value.

The lr.get_attrib_double function returns the value of an argument of type double precision floating point that was passed to the run of the script. You place the command line parameter's name in the function's argument field and lr.get_attrib_double returns the value of that parameter.

## Return Values

On success, returns the value of the parameter. If the parameter does not exist or if its value is not consistent with the type (for example a flag parameter), returns -1.

## Parameterization

Standard parameterization is not available for this function.

## VBScript Example

In the following example, lr.get_attrib_double, lr.get_attrib_long, and lr.get_attrib_string retrieve the values of the command line arguments from this command:

    Public Function Init() As Long
    Dim wait_time as Double
    Dim secInYear as Long
    Dim mrsCollins as String
    Dim i, loops as Integer
    loops = 3
    wait_time = lr.get_attrib_double("time")
    secInYear = lr.get_attrib_long("secondsInYear")
    mrsCollins = lr.get_attrib_string("MrsCollins")
    ' If the commands succeeded, output the values
    if (wait_time <= 0 )then
    	lr.message "Illegal time value = " + Cstr(wait_time)
    	Init = lr.PASS
    	Exit Function
    else
    	lr.message "Wait time value =" + Cstr(wait_time)
    	lr.message "The number of seconds in a year is" + Cstr(secInYear)
    	lr.message "Mr.Collins' wife is named" + mrsCollins + "Lucas"
    end if

    ' Use the time from the command line

    for i = 0 To(loops - 1)

    ' Your business process or test goes here
    	lr.message "Time and date:" + Cstr(Time)
    	lr.think_time(wait_time)
    	next i

    lr.message "Time and date:" + Cstr(Time) ' FormatDateTime(Time)
    Init = lr.PASS

    End Function

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