2 files changed, 9 insertions, 23 deletions
diff --git a/js/compiler.ts b/js/compiler.ts
index d92838652..3c2e3e4d1 100644
--- a/js/compiler.ts
+++ b/js/compiler.ts
@@ -137,13 +137,6 @@ function throwResolutionError(
   );
 }
 
-// ts.ScriptKind is not available at runtime, so local enum definition
-enum ScriptKind {
-  JS = 1,
-  TS = 3,
-  JSON = 6
-}
-
 /**
  * A singleton class that combines the TypeScript Language Service host API
  * with Deno specific APIs to provide an interface for compiling and running
@@ -626,13 +619,13 @@ export class DenoCompiler implements ts.LanguageServiceHost {
     const suffix = fileName.substr(fileName.lastIndexOf(".") + 1);
     switch (suffix) {
       case "ts":
-        return ScriptKind.TS;
+        return ts.ScriptKind.TS;
       case "js":
-        return ScriptKind.JS;
+        return ts.ScriptKind.JS;
       case "json":
-        return ScriptKind.JSON;
+        return ts.ScriptKind.JSON;
       default:
-        return this._options.allowJs ? ScriptKind.JS : ScriptKind.TS;
+        return this._options.allowJs ? ts.ScriptKind.JS : ts.ScriptKind.TS;
     }
   }
 
diff --git a/js/compiler_test.ts b/js/compiler_test.ts
index c056cf932..fdb5fe03b 100644
--- a/js/compiler_test.ts
+++ b/js/compiler_test.ts
@@ -8,13 +8,6 @@ import * as ts from "typescript";
 
 const { DenoCompiler } = compiler;
 
-// Enums like this don't exist at runtime, so local copy
-enum ScriptKind {
-  JS = 1,
-  TS = 3,
-  JSON = 6
-}
-
 interface ModuleInfo {
   moduleName: string | null;
   filename: string | null;
@@ -466,11 +459,11 @@ test(function compilerGetScriptFileNames() {
 });
 
 test(function compilerGetScriptKind() {
-  assertEqual(compilerInstance.getScriptKind("foo.ts"), ScriptKind.TS);
-  assertEqual(compilerInstance.getScriptKind("foo.d.ts"), ScriptKind.TS);
-  assertEqual(compilerInstance.getScriptKind("foo.js"), ScriptKind.JS);
-  assertEqual(compilerInstance.getScriptKind("foo.json"), ScriptKind.JSON);
-  assertEqual(compilerInstance.getScriptKind("foo.txt"), ScriptKind.JS);
+  assertEqual(compilerInstance.getScriptKind("foo.ts"), ts.ScriptKind.TS);
+  assertEqual(compilerInstance.getScriptKind("foo.d.ts"), ts.ScriptKind.TS);
+  assertEqual(compilerInstance.getScriptKind("foo.js"), ts.ScriptKind.JS);
+  assertEqual(compilerInstance.getScriptKind("foo.json"), ts.ScriptKind.JSON);
+  assertEqual(compilerInstance.getScriptKind("foo.txt"), ts.ScriptKind.JS);
 });
 
 test(function compilerGetScriptVersion() {