From 5b0cad01a83cded094c938fa016841cc824a9ce7 Mon Sep 17 00:00:00 2001
From: Roger Chi <roger.chi@shipveho.com>
Date: Sat, 26 Mar 2022 23:41:52 -0400
Subject: [PATCH] docs: add comment

---
 lib/constructs/sampling-rule.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/constructs/sampling-rule.ts b/lib/constructs/sampling-rule.ts
index 314e20c..47eb594 100644
--- a/lib/constructs/sampling-rule.ts
+++ b/lib/constructs/sampling-rule.ts
@@ -31,7 +31,10 @@ export class SamplingRule extends Rule {
     if (percentage >= 1 || percentage <= 0) {
       throw new Error('Percentage must be between 0 and 1');
     }
+    // Get the first three significant hex digits from the percentage
     const hexString = percentage.toString(16).slice(0, 5).slice(-3);
+
+    // Build up list of prefixes, starting from most significant digit
     let prefixes: string[] = [];
     let a;
     for (a = 0x0; a < parseInt(hexString[0], 16); a++) {