add snippet fibsTillNum

snippets/fibsTillNum.md

@@ -0,0 +1,9 @@
+### fibsTillNum
+
+Returns the number of fibonnacci numbers till num(0 and num inclusive)
+
+```js
+const fibsTillNum = num =>
+  Math.ceil(Math.log(num * Math.sqrt(5) + 1/2) / Math.log((Math.sqrt(5)+1)/2))// fibonacci(5) -> [0,1,1,2,3]
+  \\ fibsTillNum(10) -> 7
+```