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INTERMEDIATE JAVASCRIPT MODULES
Review
We just learned how to use JavaScript modules. Let's review what we learned:

Modules in JavaScript are reusable pieces of code that can be exported from one program and imported for use in another program.

module.exports exports the module for use in another program.
require() imports the module for use in the current program.
ES6 introduced a more flexible, easier syntax to export modules:

default exports use export default to export JavaScript objects, functions, and primitive data types.
named exports use the export keyword to export data in variables.
named exports can be aliased with the as keyword.
import is a keyword that imports any object, function, or data type.

 export let availableAirplanes = [
{
  name: 'AeroJet',
  fuelCapacity: 800,
  availableStaff: ['pilots', 'flightAttendants', 'engineers', 'medicalAssistance', 'sensorOperators'],
  maxSpeed: 1200, 
  minSpeed: 300
 }, 
 {name: 'SkyJet',
  fuelCapacity: 500,
  availableStaff: ['pilots', 'flightAttendants'],
  maxSpeed: 800, 
  minSpeed: 200
 }
];

  export let flightRequirements = {
  requiredStaff: 4, 
  requiredSpeedRange: 700
};

  export function meetsStaffRequirements(availableStaff, requiredStaff) {
    if(availableStaff.length >= requiredStaff) {
       return true;
    } else {
      return false;
    }
}

 function meetsSpeedRangeRequirements(maxSpeed, minSpeed, requiredSpeedRange) {
  let range = maxSpeed - minSpeed;
  if(range > requiredSpeedRange) {
     return true;
  } else {
    return false;
  }
}

export {availableAirplanes as aircrafts, flightRequirements as flightReqs, meetsStaffRequirements as meetsStaffReqs, meetsSpeedRangeRequirements as meetsSpeedRangeReqs};

export default meetsSpeedRangeRequirements;

import {availableAirplanes, flightRequirements, meetsStaffRequirements} from './airplane';

import meetsSpeedRangeRequirements from './airplane';

function displayFuelCapacity() {
  availableAirplanes.forEach(function(element) {
    console.log('Fuel Capacity of ' + element.name + ': ' + element.fuelCapacity);
  });
}

displayFuelCapacity();

function displayStaffStatus() {
  availableAirplanes.forEach(function(element) {
    console.log(element.name + ' meets staff requirements: ' + meetsStaffRequirements(element.availableStaff, flightRequirements.requiredStaff));
  });
}

displayStaffStatus();

function displaySpeedRangeStatus() {
  availableAirplanes.forEach(function(element) {
    console.log(element.name+ 'meets speed range requirements: ' + meetsSpeedRangeRequirements(element.maxSpeed, element.minSpeed, flightRequirements.requiredSpeedRange));
  });
}
displaySpeedRangeStatus();
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