chore: import upstream snapshot with attribution

2026-07-13 11:55:53 +08:00
commit dde272c4b8
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+---
+id: cf1111c1c11feddfaeb7bdef
+title: Nest one Array within Another Array
+challengeType: 1
+forumTopicId: 18247
+dashedName: nest-one-array-within-another-array
+---
+
+# --description--
+
+You can also nest arrays within other arrays, like below:
+
+```js
+const teams = [["Bulls", 23], ["White Sox", 45]];
+```
+
+This is also called a <dfn>multi-dimensional array</dfn>.
+
+# --instructions--
+
+Create a nested array called `myArray`.
+
+# --hints--
+
+`myArray` should have at least one array nested within another array.
+
+```js
+assert(Array.isArray(myArray) && myArray.some(Array.isArray));
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+// Only change code below this line
+const myArray = [];
+```
+
+# --solutions--
+
+```js
+const myArray = [[1, 2, 3]];
+```