Exercise Solution - Get the final grade (M1 W1)

index.js

const students = [
  {
    name: "Tony Parker",
    firstProject: 80,
    secondProject: 75,
    finalProject: 90
  },
  {
    name: "Marc Barchini",
    firstProject: 84,
    secondProject: 65,
    finalProject: 65
  },
  {
    name: "Claudia Lopez",
    firstProject: 45,
    secondProject: 95,
    finalProject: 99
  },
  {
    name: "Alvaro Briattore",
    firstProject: 82,
    secondProject: 92,
    finalProject: 70
  },
  {
    name: "Isabel Ortega",
    firstProject: 90,
    secondProject: 32,
    finalProject: 85
  },
  {
    name: "Francisco Martinez",
    firstProject: 90,
    secondProject: 55,
    finalProject: 78
  },
  {
    name: "Jorge Carrillo",
    firstProject: 83,
    secondProject: 77,
    finalProject: 90
  },
  {
    name: "Miguel López",
    firstProject: 80,
    secondProject: 75,
    finalProject: 75
  },
  {
    name: "Carolina Perez",
    firstProject: 85,
    secondProject: 72,
    finalProject: 67
  },
  {
    name: "Ruben Pardo",
    firstProject: 89,
    secondProject: 72,
    finalProject: 65
  }
];

// during every function invocation new scope is created. After function finishes, scope is destroyed

const finalGrades = students.map( function (obj) {
  // destructure the object
  const { name, firstProject, secondProject, finalProject } = obj;
  
  // Same as:
  // const name = obj.name;
  // const firstProject = obj.firstProject;
  // const secondProject = obj.secondProject;
  // const finalProject = obj.finalProject;
  
  // calculate
  const finalGrade = ( firstProject + secondProject + finalProject) / 3;
  // convert to Integer
  const finalGradeInt = parseInt(finalGrade);
  
  // return the new object that will be stored in the new array
  return { 
    name: name,
    finalGrade: finalGradeInt
  }
});

console.log(finalGrades);