extractBits() little optimization

leodutra · May 13, 2016 · 601a3cb · 601a3cb
1 parent 87f96d1
commit 601a3cb
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/simpleflakes.js b/lib/simpleflakes.js
@@ -41,7 +41,8 @@ function binary(value, padding) {
 }
 
 function extractBits(data, shift, length) {
-  return new BigNum(CACHE_64_BIT_ONES.substr(0, length), 2).shln(shift).and(new BigNum(data, 10)).shrn(shift);
+  //return new BigNum(CACHE_64_BIT_ONES.substr(0, length), 2).shln(shift).and(new BigNum(data, 10)).shrn(shift);
+  return (new BigNum(data, 10)).shrn(shift).and(new BigNum(CACHE_64_BIT_ONES.substr(0, length), 2));
 }
 
 function parseSimpleflake(flake) {