chore(i8n,learn): processed translations

curriculum/challenges/espanol/10-coding-interview-prep/rosetta-code/vector-cross-product.md

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+---
+id: 594810f028c0303b75339ad2
+title: Vector cross product
+challengeType: 5
+forumTopicId: 302342
+dashedName: vector-cross-product
+---
+
+# --description--
+
+A vector is defined as having three dimensions as being represented by an ordered collection of three numbers: (X, Y, Z).
+
+# --instructions--
+
+Write a function that takes two vectors (arrays) as input and computes their cross product. Your function should return `null` on invalid inputs such as vectors of different lengths.
+
+# --hints--
+
+dotProduct should be a function.
+
+```js
+assert.equal(typeof crossProduct, 'function');
+```
+
+dotProduct() should return null.
+
+```js
+assert.equal(crossProduct(), null);
+```
+
+crossProduct([1, 2, 3], [4, 5, 6]) should return [-3, 6, -3].
+
+```js
+assert.deepEqual(res12, exp12);
+```
+
+# --seed--
+
+## --after-user-code--
+
+```js
+const tv1 = [1, 2, 3];
+const tv2 = [4, 5, 6];
+const res12 = crossProduct(tv1, tv2);
+const exp12 = [-3, 6, -3];
+```
+
+## --seed-contents--
+
+```js
+function crossProduct(a, b) {
+
+}
+```
+
+# --solutions--
+
+```js
+function crossProduct(a, b) {
+  if (!a || !b) {
+    return null;
+  }
+
+  // Check lengths
+  if (a.length !== 3 || b.length !== 3) {
+    return null;
+  }
+
+  return [
+    (a[1] * b[2]) - (a[2] * b[1]),
+    (a[2] * b[0]) - (a[0] * b[2]),
+    (a[0] * b[1]) - (a[1] * b[0])
+  ];
+}
+```