luisprooc
diff --git a/‎README.md
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diff --git a/‎src/largestNumber.js
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@@ -256,3 +256,19 @@ filteredArray([[3, 2, 3], [1, 6, 3], [3, 13, 26], [19, 3, 9]], 3) should return
 
 The filteredArray function should utilize a for loop
 ```
+
+
+## Largest Numbers in Arrays
+
+Return an array consisting of the largest number from each provided sub-array. For simplicity, the provided array will contain exactly 4 sub-arrays.
+
+
+```javascript
+largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]) should return an array.
+
+largestOfFour([[13, 27, 18, 26], [4, 5, 1, 3], [32, 35, 37, 39], [1000, 1001, 857, 1]]) should return [27, 5, 39, 1001].
+
+largestOfFour([[4, 9, 1, 3], [13, 35, 18, 26], [32, 35, 97, 39], [1000000, 1001, 857, 1]]) should return [9, 35, 97, 1000000].
+
+largestOfFour([[17, 23, 25, 12], [25, 7, 34, 48], [4, -10, 18, 21], [-72, -3, -17, -10]]) should return [25, 48, 21, -3].
+```
@@ -0,0 +1,9 @@
+function largestOfFour(arr) {
+    const largestArray = [];
+    for(let i in arr){
+        largestArray.push(Math.max(...arr[i]));
+    }
+    return largestArray;
+};
+
+console.log(largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]));