comment

debug-js · Jul 15, 2018 · 690e365 · 690e365
1 parent 5ae4029
commit 690e365
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/node.js b/src/node.js
@@ -119,7 +119,10 @@ function log() {
  */
 
 function save(namespaces) {
-  var env = process.env; // alias env to avoid problems with webpack DefinePlugin
+  // webpack DefinePlugin will replace "process.env.DEBUG" with a constant expression, e.g. "true." To 
+  // avoid this issue, we need to alias "process.env" to a variable, so that webpack DefinePlugin will
+  // not create a syntax error by producing the invalid statement "false = namespaces;"
+  var env = process.env;
   if (null == namespaces) {
     // If you set a process.env field to null or undefined, it gets cast to the
     // string 'null' or 'undefined'. Just delete instead.