Oliver Eyton-Williams ee1e8abd87

feat(curriculum): restore seed + solution to Chinese (#40683 )

* feat(tools): add seed/solution restore script

* chore(curriculum): remove empty sections' markers

* chore(curriculum): add seed + solution to Chinese

* chore: remove old formatter

* fix: update getChallenges

parse translated challenges separately, without reference to the source

* chore(curriculum): add dashedName to English

* chore(curriculum): add dashedName to Chinese

* refactor: remove unused challenge property 'name'

* fix: relax dashedName requirement

* fix: stray tag

Remove stray `pre` tag from challenge file.

Signed-off-by: nhcarrigan <nhcarrigan@gmail.com>

Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>

2021-01-12 19:31:00 -07:00

1.4 KiB

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id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
ab306dbdcc907c7ddfc30830	数组扁平化	5	16079	steamroller

--description--

在这道题目中，我们需要写一个数组扁平化的函数。请注意考虑多层数组嵌套的情景。

--hints--

steamrollArray([[["a"]], [["b"]]]) 应返回 ["a", "b"]。

assert.deepEqual(steamrollArray([[['a']], [['b']]]), ['a', 'b']);

steamrollArray([1, [2], [3, [[4]]]]) 应返回 [1, 2, 3, 4]。

assert.deepEqual(steamrollArray([1, [2], [3, [[4]]]]), [1, 2, 3, 4]);

steamrollArray([1, [], [3, [[4]]]]) 应返回 [1, 3, 4]。

assert.deepEqual(steamrollArray([1, [], [3, [[4]]]]), [1, 3, 4]);

steamrollArray([1, {}, [3, [[4]]]]) 应返回 [1, {}, 3, 4]。

assert.deepEqual(steamrollArray([1, {}, [3, [[4]]]]), [1, {}, 3, 4]);

代码中不应使用 Array.prototype.flat() 或 Array.prototype.flatMap() 方法。

assert(!code.match(/\.\s*flat\s*\(/) && !code.match(/\.\s*flatMap\s*\(/));

--seed--

--seed-contents--

function steamrollArray(arr) {
  return arr;
}

steamrollArray([1, [2], [3, [[4]]]]);

--solutions--

function steamrollArray(arr) {
  if (!Array.isArray(arr)) {
    return [arr];
  }
  var out = [];
  arr.forEach(function(e) {
    steamrollArray(e).forEach(function(v) {
      out.push(v);
    });
  });
  return out;
}

1.4 KiB Raw Blame History