4.10. Studio: Data and Variables¶

In this studio, you are going to write code to display the very important Launch Checklist LC04.

LC04 displays information related to the space shuttle, astronauts, and rockets before launch.

4.10.1. Before You Start¶

Use this starter Repl.it file to complete this studio.

4.10.2. Declare and Initialize Variables¶

Declare and initialize a variable for every data point listed below. Remember to account for the different data types.

Variable	Value
`date`	Monday 2019-03-18
`time`	10:05:34 AM
`astronautCount`	7
`astronautStatus`	ready
`averageAstronautMassKg`	80.7
`crewMassKg`	`astronautCount` * `averageAstronautMassKg`
`fuelMassKg`	760,000
`shuttleMassKg`	74842.31
`totalMassKg`	`crewMassKg` + `fuelMassKg` + `shuttleMassKg`
`fuelTempCelsius`	-225
`fuelLevel`	100%
`weatherStatus`	clear

4.10.3. Generate the LC04 Form¶

Display LC04 to the console using the variables you declared and initialized.

The generated report should look exactly like the example below---including spaces and symbols (-, >, and *).

4.10.3.1. Example Output¶

Note that your output should change when you assign different values to astronautCount, fuelMassKg, etc. The point is to AVOID coding specific values into the console.log statements. Use your variable names instead.

-------------------------------------
> LC04 - LAUNCH CHECKLIST
-------------------------------------
Date: Monday 2019-03-18
Time: 10:05:34 AM

-------------------------------------
> ASTRONAUT INFO
-------------------------------------
* count: 7
* status: ready

-------------------------------------
> FUEL DATA
-------------------------------------
* Fuel temp celsius: -225 C
* Fuel level: 100%

-------------------------------------
> MASS DATA
-------------------------------------
* Crew mass: 564.9 kg
* Fuel mass: 760000 kg
* Shuttle mass: 74842.31 kg
* Total mass: 835407.21 kg

-------------------------------------
> FLIGHT PLAN
-------------------------------------
* weather: clear

-------------------------------------
> OVERALL STATUS
-------------------------------------
* Clear for takeoff: YES

4.10.4. Show Off Your Code¶

When finished, show your code to your TA so they can verify your work.

If you do not finish before the end of class, login to Repl.it and save your work. Complete the studio at home, then copy the URL for your project and submit it to your TA.

4.10.5. Bonus Mission¶

Use readline-sync to prompt the user to enter the value for astronautCount.

The values printed for astronautCount, crewMassKg, and totalMassKg should change based on the number of astronauts on the shuttle. (Don't forget to convert the input value from a string to a number).