Merge pull request Chalarangelo#151 from arjunmahishi/sample

Added snippet to sample an array
allenhsu6 · Dec 15, 2017 · a524b0d · a524b0d
2 parents 73b897a + edd961a
commit a524b0d
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/snippets/array-sample.md b/snippets/array-sample.md
@@ -0,0 +1,9 @@
+### Array sample
+
+Use `Math.random()` to generate a random number, multiply it with `Array.length` and round it of to the nearest whole number using `Math.floor()`. Works with strings too. 
+
+```js
+const sample = arr => arr[Math.floor(Math.random() * arr.length)];
+
+// sample([3, 7, 9, 11]) -> 9 
+```