js_sucks.js

const tests = [
  [
    "for",
    (array) => {
      const new_array = new Array(3);
      for (let index = 0; index < array.length; index++) {
        new_array[index] = array[index] + 1;
      }
      return new_array;
    },
  ],
  [
    "map",
    (array) => {
      return array.map((el) => el + 1);
    },
  ],
  ["map call", (array) => {
    return Array.prototype.map.call(array, (el) => el + 1);
  }],
];

const inputs = [
  [1, 2, 3],
  (() => {
    const arr = [1];
    arr[2] = 3;
    return arr;
  })(),
  { length: 3 },
  { map: () => console.log("tuturu") },
];

tests.forEach(([name, test]) => {
  inputs.forEach((input) => {
    try {
      console.log(name, test(input))
    } catch (e) {
      console.log(name, 'fail')
    }
  });
});