Imperative Code Sample #1

imperativeStyle.js

/**
    Imperative style example of a program that will find the average grade for classes with 
    more than one student enrolled.
**/

let courses = [
    { name: 'functional fundamentals', enrolled: 2, grade: 100, students: 30 },
    { name: 'category theory', enrolled: 2, grade: 80, students: 25 },
    { name: 'basket weaving', enrolled: 1, grade: 89, students: 43 }
];

let totalGrades = 0;
let totalClasses = 0;
let average = 0;

for(let i = 0; i < courses.length; i++){
 let course = courses[i];
 if (course !== null) {
  if(course.enrolled > 1){
    totalGrades += course.grade;
    totalClasses += 1;
  }
 }
}

averageGrade = totalGrades / totalClasses;

console.info('The average grade for courses with more than one person enrolled: ', averageGrade);