[刷題紀錄] Codewars-8kyu

TL;DR

將刷過的題目給記錄起來

---

String

將數字轉換為字串

• url:https://www.codewars.com/kata/5265326f5fda8eb1160004c8/train/javascript
• description:We need a function that can transform a number (integer) into a string. What ways of achieving this do you know? Examples (input --> output):

  123  --> "123"
  999  --> "999"
  -100 --> "-100"

After practice

我的答案

function numberToString(num) {
  return num.toString();
}

最佳解

function numberToString(num) {
  return num.toString();
}

知識點

其他補充

也有其他的解法如下

function numberToString(num) {
  // Return a string of the number here!
  return String(num);
}
//or
function numberToString(num) {
  return ''+num;
}
//or
const numberToString = num => `${num}`;

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Object