lib: simplify options lazy-loading

Author: avivkeller

lib/internal/options.js

@@ -17,33 +17,23 @@ let embedderOptions;
 // complete so that we don't accidentally include runtime-dependent
 // states into a runtime-independent snapshot.
 function getCLIOptionsFromBinding() {
-  if (!optionsDict) {
-    optionsDict = getCLIOptionsValues();
-  }
-  return optionsDict;
+  return optionsDict ??= getCLIOptionsValues();
 }
 
 function getCLIOptionsInfoFromBinding() {
-  if (!cliInfo) {
-    cliInfo = getCLIOptionsInfo();
-  }
-  return cliInfo;
+  return cliInfo ??= getCLIOptionsInfo();
 }
 
 function getEmbedderOptions() {
-  if (!embedderOptions) {
-    embedderOptions = getEmbedderOptionsFromBinding();
-  }
-  return embedderOptions;
+  return embedderOptions ??= getEmbedderOptionsFromBinding();
 }
 
 function refreshOptions() {
   optionsDict = undefined;
 }
 
 function getOptionValue(optionName) {
-  const optionsDict = getCLIOptionsFromBinding();
-  return optionsDict[optionName];
+  return getCLIOptionsFromBinding()[optionName];
 }
 
 function getAllowUnauthorized() {