Merge pull request #135 from ecwyne/round-to-n-digits

round number to n digits

snippets/round-number-to-n-digits.md

@@ -0,0 +1,9 @@
+### Round number to n digits
+
+Use `Math.round()` and template literals to round the number to the specified number of digits.
+Omit the second argument, `decimals` to round to an integer.
+
+```js
+const round = (n, decimals=0) => Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`);
+// round(1.005, 2) -> 1.01
+```