diff --git a/new-log-viewer/src/services/decoders/JsonlDecoder/index.ts b/new-log-viewer/src/services/decoders/JsonlDecoder/index.ts
index c6c4aa92..fc92be3e 100644
--- a/new-log-viewer/src/services/decoders/JsonlDecoder/index.ts
+++ b/new-log-viewer/src/services/decoders/JsonlDecoder/index.ts
@@ -73,7 +73,7 @@ class JsonlDecoder implements Decoder {
     build (): LogEventCount {
         this.#deserialize();
 
-        const numInvalidEvents = Array.from(this.#invalidLogEventIdxToRawLine.keys()).length;
+        const numInvalidEvents = this.#invalidLogEventIdxToRawLine.size;
 
         return {
             numValidEvents: this.#logEvents.length - numInvalidEvents,
@@ -106,9 +106,8 @@ class JsonlDecoder implements Decoder {
 
         const results: DecodeResultType[] = [];
         for (let i = beginIdx; i < endIdx; i++) {
-            // Explicit cast since typescript thinks `#filteredLogEventMap[i]`
-            // can be undefined, but it shouldn't be since we performed a bounds check at the
-            // beginning of the method.
+            // Explicit cast since typescript thinks `#filteredLogEventMap[i]` can be undefined, but
+            // it shouldn't be since we performed a bounds check at the beginning of the method.
             const logEventIdx: number = (useFilter && null !== this.#filteredLogEventMap) ?
                 (this.#filteredLogEventMap[i] as number) :
                 i;
diff --git a/new-log-viewer/src/typings/logs.ts b/new-log-viewer/src/typings/logs.ts
index 8f32e65f..67fe98fe 100644
--- a/new-log-viewer/src/typings/logs.ts
+++ b/new-log-viewer/src/typings/logs.ts
@@ -16,14 +16,14 @@ enum LOG_LEVEL {
 
 type LogLevelFilter = Nullable<LOG_LEVEL[]>;
 
-const INVALID_TIMESTAMP_VALUE = 0;
-
 interface LogEvent {
     timestamp: Dayjs,
     level: LOG_LEVEL,
     fields: JsonObject
 }
 
+const INVALID_TIMESTAMP_VALUE = 0;
+
 export type {
     LogEvent,
     LogLevelFilter,