false
, null
, 0
, ""
, undefined
和NaN
。提示:尝试将每个值转换为布尔值。如果卡住,请记得使用Read-Search-Ask 。编写自己的代码。 bouncer([7, "ate", "", false, 9])
应该返回[7, "ate", 9]
。'
testString: assert.deepEqual(bouncer([7, "ate", "", false, 9]), [7, "ate", 9]);
- text: 'bouncer(["a", "b", "c"])
应返回["a", "b", "c"]
。'
testString: assert.deepEqual(bouncer(["a", "b", "c"]), ["a", "b", "c"]);
- text: 'bouncer([false, null, 0, NaN, undefined, ""])
应返回[]
。'
testString: assert.deepEqual(bouncer([false, null, 0, NaN, undefined, ""]), []);
- text: 'bouncer([1, null, NaN, 2, undefined])
应该返回[1, 2]
。'
testString: assert.deepEqual(bouncer([null, NaN, 1, 2, undefined]), [1, 2]);
```