2.1.29

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@gitzone/tsbuild",
-  "version": "2.1.27",
+  "version": "2.1.29",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@gitzone/tsbuild",
-      "version": "2.1.27",
+      "version": "2.1.29",
       "license": "MIT",
       "dependencies": {
         "@pushrocks/early": "^3.0.6",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@gitzone/tsbuild",
-  "version": "2.1.27",
+  "version": "2.1.29",
   "private": false,
   "description": "TypeScript nightly to easily make use of latest features",
   "main": "dist_ts/index.js",

ts/tsbuild.classes.compiler.ts

@@ -17,7 +17,8 @@ export const compilerOptionsDefault: CompilerOptions = {
   lib: ['lib.es2017.d.ts'],
   noImplicitAny: false,
   esModuleInterop: true,
-  target: plugins.typescript.ScriptTarget.ES2017
+  target: plugins.typescript.ScriptTarget.ES2017,
+  importsNotUsedAsValues: plugins.typescript.ImportsNotUsedAsValues.Preserve
 };
 
 export const compilerOptionsWebDefault: CompilerOptions = {
@@ -43,7 +44,10 @@ export const mergeCompilerOptions = (
   // create merged options
   const mergedOptions: CompilerOptions = {
     ...defaultOptionsToMerge,
-    ...customTsOptions
+    ...customTsOptions,
+    ...argvArg && argvArg.skiplibcheck ? {
+      skipLibCheck: true
+    } : {},
   };
 
   return mergedOptions;