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
98 lines
1.3 KiB
Markdown
98 lines
1.3 KiB
Markdown
---
|
|
id: a77dbc43c33f39daa4429b4f
|
|
title: Boo who
|
|
challengeType: 1
|
|
forumTopicId: 16000
|
|
dashedName: boo-who
|
|
---
|
|
|
|
# --description--
|
|
|
|
Check if a value is classified as a boolean primitive. Return `true` or `false`.
|
|
|
|
Boolean primitives are `true` and `false`.
|
|
|
|
# --hints--
|
|
|
|
`booWho(true)` should return `true`.
|
|
|
|
```js
|
|
assert.isTrue(booWho(true));
|
|
```
|
|
|
|
`booWho(false)` should return `true`.
|
|
|
|
```js
|
|
assert.isTrue(booWho(false));
|
|
```
|
|
|
|
`booWho([1, 2, 3])` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho([1, 2, 3]));
|
|
```
|
|
|
|
`booWho([].slice)` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho([].slice));
|
|
```
|
|
|
|
`booWho({ "a": 1 })` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho({ a: 1 }));
|
|
```
|
|
|
|
`booWho(1)` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho(1));
|
|
```
|
|
|
|
`booWho(NaN)` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho(NaN));
|
|
```
|
|
|
|
`booWho("a")` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho('a'));
|
|
```
|
|
|
|
`booWho("true")` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho('true'));
|
|
```
|
|
|
|
`booWho("false")` should return `false`.
|
|
|
|
```js
|
|
assert.isFalse(booWho('false'));
|
|
```
|
|
|
|
# --seed--
|
|
|
|
## --seed-contents--
|
|
|
|
```js
|
|
function booWho(bool) {
|
|
return bool;
|
|
}
|
|
|
|
booWho(null);
|
|
```
|
|
|
|
# --solutions--
|
|
|
|
```js
|
|
function booWho(bool) {
|
|
return typeof bool === 'boolean';
|
|
}
|
|
|
|
booWho(null);
|
|
```
|