[Tutorial] Functional try catch

try-catch-snippet-02.js

// mutable variable

const getData = (id) => {
  if (!id) {
    throw new Error('No id found');
  }

  return [1, 2, 3, 4, 5].filter(i => i % id);
};

const demo01 = () => {
  let data = []
  try {
    data = getData(2); // [1, 3, 5]
  } catch (error) {
    console.log('error', error);
  }
  
  if (data.includes(1)) {
    console.log(data)
  }
}

// rabbit hole
const demo02 = () => {
  try {
    const data = getData(2); // [1, 3, 5]

    if (data.includes('1')) {
      console.log(data)  
    }
  } catch (error) {
    console.log('error', error);
  }
}