2.4.6. Assignment

[mserykh]

Assignment

Loop an Array

Instructions

Create a program that lists every 3rd number between 1-20 and prints it to the console.

TIP: use a for-loop and modify the iteration-expression

Rubric

Criteria	Exemplary	Adequate	Needs Improvement
	Complete solution is presented	Partial solution is presented	Solution with bugs is presented

[mserykh]

const printEveryThird = (i) => {
  if (i % 3 === 0) {
    console.log(i);
  }  
}

const getNumbers = (n) => {
  for (let i = 1; i <= n; i++) {
    printEveryThird(i);
  }
}

getNumbers(20);

[dev-experience]

@mserykh

// The function does two things at the same time. And the name is misleading anyways
const printEveryThird = (i) => {
  if (i % 3 === 0) {
    console.log(i);
  }  
}

// Please remove redundant parenthesis. They are noisy.
const getNumbers = (n) => {
  for (let i = 1; i <= n; i++) {
    printEveryThird(i);
  }
}

// What do you mean by `getNumbers`? Why it's not `printEveryThird()`?
getNumbers(20);

[dev-experience]

@mserykh Another thing. Your solution doesn't match the instructions. Please do another version no. 2 that matches (no functions, just for loop).

[mserykh]

@dev-experience please see rewritten:

const isThird = i => i % 3 === 0;

const printEveryThird = n => {
  for (let i = 1; i <= n; i++) {
    if(isThird(i)) {
        console.log(i);
    }
  }
};

printEveryThird(20);

[mserykh]

@dev-experience just with a loop:

 for (let i = 1; i <= 20; i++) {
  if (i % 3 === 0) {
    console.log(i);
  }
}

[dev-experience]

@mserykh check out the TIP and try again:

TIP: use a for-loop and modify the iteration-expression

[mserykh]

for (let i = 3; i <= 20; i += 3) {
  console.log(i);
}

[dev-experience]

@mserykh Great!

It's important to carefully read the tasks and follow all the tips.

[dev-experience]

@mserykh test