Functions Lab

// Learning/Exercise Functions - Lab, Softuni JS Fundamentals

function print(value) {
  console.log(value);
}

function formatGrade(grade) {
  let output = "";
  if (grade < 3) {
    output = "Fail (2)";
  } else if (grade >= 3 && grade < 3.5) {
    output = `Poor (${grade.toFixed(2)})`;
  } else if (grade >= 3.5 && grade < 4.5) {
    output = `Good (${grade.toFixed(2)})`;
  } else if (grade >= 4.5 && grade < 5.5) {
    output = `Very good (${grade.toFixed(2)})`;
  } else {
    output = `Excellent (${grade.toFixed(2)})`;
  }
  return output;
}
// print(formatGrade(3.33))
// print(formatGrade(4.50))
// print(formatGrade(2.99))

function myMathPower(num, power) {
  let value = 1;
  for (let i = 0; i < power; i++) {
    value *= num;
  }
  return value;
}
//print(myMathPower(2, 8))

function repeatString(str, n) {
  let output = "";
  for (let i = 0; i < n; i++) {
    output += str;
  }
  return output;
}
//print(repeatString("abc", 3))

function orders(product, count) {
  let sum = 0;
  switch (product) {
    case "coffee":
      sum = count * 1.5;
      break;
    case "water":
      sum = count * 1.0;
      break;
    case "coke":
      sum = count * 1.4;
      break;
    case "snacks":
      sum = count * 2.0;
      break;
    default:
      break;
  }
  //console.log(sum.toFixed(2))
}
orders("water", 5);

function simpleCalculator(numOne, numTwo, operator) {
  let multiply = (a, b) => a * b;
  let divide = (a, b) => a / b;
  let add = (a, b) => a + b;
  let subtract = (a, b) => a - b;

  switch (operator) {
    case "multiply":
      return multiply(numOne, numTwo);
    case "divide":
      return divide(numOne, numTwo);
    case "add":
      return add(numOne, numTwo);
    case "subtract":
      return subtract(numOne, numTwo);
  }
}
//print(simpleCalculator(5, 5, "multiply"));

function signCheck(numOne, numTwo, numThree) {
  if (numOne * numTwo * numThree < 0) {
    console.log("Negative");
  } else {
    console.log("Positive");
  }
}
//signCheck(5, 12, -15);

function printHeader() {
  console.log("~~~- {@} -~~~");
  console.log("~- Certificate -~");
  console.log("~~~- ~---~ -~~~");
}
//printHeader();

function printName(nameArr) {
  return `${nameArr[0]} ${nameArr[1]}`;
}
//printName(['John', 'Smith']);

function readFullName(firstName, lastName) {
  return firstName + " " + lastName;
}
const fullName = readFullName("John", "Smith");
//console.log(fullName);

function passGrade(grade) {
  if (grade < 3) {
    return false;
  } else {
    return true;
  }
}

function printCertificate(grade, array) {
  if (!passGrade(grade)) {
    console.log(`${array[0]} ${array[1]} does not qualify`);
    return;
  }

  printHeader();
  console.log(printName(array));
  console.log(formatGrade(grade));
}
printCertificate(2.25, ["Peter", "Carter"]);