This commit is contained in:
Ilya Kantor 2016-07-21 17:05:55 +03:00
parent 1bffa43db4
commit 057783d216
373 changed files with 203 additions and 190 deletions

View file

@ -0,0 +1,12 @@
We need to generate a random integer value from `0` to `arr.length-1`, and then take the element with that index.
Here we go:
```js run
let arr = ["Apple", "Orange", "Pear", "Lemon"];
let rand = Math.floor(Math.random() * arr.length);
alert( arr[rand] );
```

View file

@ -0,0 +1,11 @@
importance: 3
---
# A random array value
Write the code to `alert` a random value from the array:
```js
let arr = ["Apple", "Orange", "Pear", "Lemon"];
```