Create randomWithChances.js

Author: DeusDrizzyy

randomWithChances.js

@@ -0,0 +1,18 @@
+function getRandom(n) {
+    const e = Array.from(n);
+    e.reduce((n, e, r, t) => t[r] = n + e.chance, 0);
+    return n[e.findIndex(n => n > Math.random() * e[e.length - 1])];
+}
+
+/* Usage Examples: */
+getRandom([
+    { rarity: 'Common', chance: 60 },
+    { rarity: 'Uncommon', chance: 25 },
+    { rarity: 'Rare', chance: 10 },
+    { rarity: 'Very Rare', chance: 5 }
+]);
+
+getRandom([
+    { side: 'VSC', chance: 50 },
+    { side: 'WebStorm', chance: 50 }
+]);