2021-06-15 07:49:18 +00:00
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---
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id: a77dbc43c33f39daa4429b4f
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2021-07-21 15:23:20 +00:00
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title: Identificar verdadeiro ou falso
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2021-06-15 07:49:18 +00:00
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challengeType: 5
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forumTopicId: 16000
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dashedName: boo-who
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---
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# --description--
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2021-07-26 14:39:21 +00:00
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Verifique se um valor é classificado como booleano primitivo. Retorna `true` ou `false`.
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2021-06-15 07:49:18 +00:00
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2021-07-26 14:39:21 +00:00
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Os booleanos primitivos são `true` e `false`.
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2021-06-15 07:49:18 +00:00
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# --hints--
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2021-07-10 04:23:54 +00:00
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`booWho(true)` deve retornar `true`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho(true), true);
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```
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2021-07-10 04:23:54 +00:00
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`booWho(false)` deve retornar `true`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho(false), true);
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```
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2021-07-10 04:23:54 +00:00
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`booWho([1,2,3])` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho([1, 2, 3]), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho([].slice)` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho([].slice), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho({"a": 1})` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho({ a: 1 }), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho(1)` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho(1), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho(NaN)` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho(NaN), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho("a")` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho('a'), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho("true")` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho('true'), false);
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```
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2021-07-10 04:23:54 +00:00
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`booWho("false")` deve retornar `false`.
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2021-06-15 07:49:18 +00:00
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```js
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assert.strictEqual(booWho('false'), false);
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```
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# --seed--
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## --seed-contents--
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```js
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function booWho(bool) {
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return bool;
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}
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booWho(null);
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```
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# --solutions--
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```js
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function booWho(bool) {
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return typeof bool === "boolean";
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}
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booWho(null);
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```
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