diff --git a/src/utils/shuffle.js b/src/utils/shuffle.js new file mode 100644 index 0000000..b3dbd9a --- /dev/null +++ b/src/utils/shuffle.js @@ -0,0 +1,17 @@ +'use strict'; + +function shuffle(unshuffled, limit = 10) { + const shuffled = unshuffled; + + for (let i = shuffled.length - 1; i > 0; i -= 1) { + const j = Math.floor(Math.random() * (i + 1)); + const temp = shuffled[i]; + + shuffled[i] = shuffled[j]; + shuffled[j] = temp; + } + + return shuffled.slice(0, limit); +} + +module.exports = shuffle;