wehub-resource-sync
dde272c4b8
i18n - Build Validation / Validate i18n Builds (24) (push) Has been cancelled
CI - Node.js / Lint (24) (push) Has been cancelled
CI - Node.js / Build (24) (push) Has been cancelled
CI - Node.js / Test (24) (push) Has been cancelled
CI - Node.js / Test - Upcoming Changes (24) (push) Has been cancelled
CI - Node.js / Test - i18n (italian, 24) (push) Has been cancelled
CI - Node.js / Test - i18n (portuguese, 24) (push) Has been cancelled
CD - Docker - GHCR Images / Build and Push Images (push) Has been cancelled
74 lines
1.3 KiB
Markdown
74 lines
1.3 KiB
Markdown
---
|
|
id: 68cae5b538ff798bbd4da002
|
|
title: "Challenge 64: 24 to 12"
|
|
challengeType: 28
|
|
dashedName: challenge-64
|
|
---
|
|
|
|
# --description--
|
|
|
|
Given a string representing a time of the day in the 24-hour format of `"HHMM"`, return the time in its equivalent 12-hour format of `"H:MM AM"` or `"H:MM PM"`.
|
|
|
|
- The given input will always be a four-digit string in 24-hour time format, from `"0000"` to `"2359"`.
|
|
|
|
# --hints--
|
|
|
|
`to12("1124")` should return `"11:24 AM"`.
|
|
|
|
```js
|
|
assert.equal(to12("1124"), "11:24 AM");
|
|
```
|
|
|
|
`to12("0900")` should return `"9:00 AM"`.
|
|
|
|
```js
|
|
assert.equal(to12("0900"), "9:00 AM");
|
|
```
|
|
|
|
`to12("1455")` should return `"2:55 PM"`.
|
|
|
|
```js
|
|
assert.equal(to12("1455"), "2:55 PM");
|
|
```
|
|
|
|
`to12("2346")` should return `"11:46 PM"`.
|
|
|
|
```js
|
|
assert.equal(to12("2346"), "11:46 PM");
|
|
```
|
|
|
|
`to12("0030")` should return `"12:30 AM"`.
|
|
|
|
```js
|
|
assert.equal(to12("0030"), "12:30 AM");
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --seed-contents--
|
|
|
|
```js
|
|
function to12(time) {
|
|
|
|
return time;
|
|
}
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```js
|
|
function convertHours(hours) {
|
|
if (hours === 0) return 12;
|
|
if (hours > 12) return hours - 12;
|
|
return hours;
|
|
}
|
|
|
|
function to12(time) {
|
|
const hours = parseInt(time.slice(0, 2), 10);
|
|
const minutes = time.slice(2);
|
|
const period = hours < 12 ? 'AM' : 'PM';
|
|
|
|
return `${convertHours(hours)}:${minutes} ${period}`;
|
|
}
|
|
```
|