# Mock Interview

## ALL
### BQ
* 為什麼想當工程師?
* 為什麼想當前端工程師?
* 遇到最困難的問題是什麼？如何解決？
* 最值得一提的 feature? 為什麼?
* 最近看過的新的東西或技術?

### Vue
* Lifecycle and hooks
* Vuex / actions and mutations
### JavaScript
* Closure
* Event loop
* Prototype chain
* async/await

### Front-end
*

***

## Reading
* https://www.npmjs.com/package/country-codes-iso-converter
* https://www.npmjs.com/package/currency-converter-lt

[1, 2, 3, 4].flatMap(x => [x, x + 0.5]);

[[0, 1], [2, 3], [4, 5]].reduceRight(
  (accumulator, currentValue) => accumulator.concat(currentValue)
);

## Coding

1. create a function that can print out following results (do not create global variable)

counter() // 1
counter() // 2
counter() // 3
...

2. 每秒印出數字，從 1 到 5 [sample answer](https://replit.com/@tsungtingdu/mock-interview-counter-sample-answers)

counter()
// 1
// 2
// 3
// 4
// 5

3. 篩選出每個 key 最高 score 的資料 [data](https://replit.com/@tsungtingdu/mock-interview-merge-data)

const a_api_result = {
  key1: { score: 110, subkey: 'a-1' },
  key3: { score: 220, subkey: 'a-3' },
  key4: { score: 350, subkey: 'a-4' },
}

const b_api_result = {
  key2: { score: 190, subkey: 'b-2' },
  key3: { score: 300, subkey: 'b-3' },
  key4: { score: 320, subkey: 'b-4' },
}

const c_api_result = {
  key4: { score: 290, subkey: 'c-4' },
  key5: { score: 420, subkey: 'c-5' },
}

mergeResult([a_api_result, b_api_result, c_api_result])

// expected result
// {
//   key1: {...},
//   key2: {...},
//   key3: {...},
//   key4: {...},
//   key5: {...}
// }

4. filter data [data](https://codepen.io/tsungtingdu-the-bold/pen/rNYNZPX)

const data = [
  { name: 'alice', gender: 'female' },
  { name: 'alex', gender: 'male' },
  { name: 'angela', gender: 'female' },
  { name: 'jennifer', gender: 'female' },
  { name: 'john', gender: 'male' },
  { name: 'johnny' },
  { name: 'josh', gender: 'male' },
  { name: 'katie', gender: 'female' },
  { name: 'kenny', gender: 'unknown' },
  { name: 'ken', gender: 'male' },
]

// write your code below