Improve support for developing on Windows (#485)

* Expand actions to run on Mac + Win in addition to Linux
* Switch to cross-platform way to call tslint

Author: bcantoni

.github/workflows/main.yml

@@ -11,12 +11,12 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
-
     strategy:
       matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
         node-version: [12.x, 14.x, 16.x]
-        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    runs-on: ${{ matrix.os }}
 
     # NOTE: There are no necessary tests to run for this repo
     steps:

package.json

@@ -8,7 +8,7 @@
     "start-sandbox": "npx tabextsandbox --config sandbox-config.json",
     "lint": "npm run jslint && npm run tslint",
     "jslint": "semistandard ./Samples/*/*.js",
-    "tslint": "./node_modules/.bin/tslint --config ./tslint.json ./Samples-Typescript/*/*.ts*",
+    "tslint": "npx tslint --config ./tslint.json ./Samples-Typescript/*/*.ts*",
     "dev": "concurrently --kill-others \"webpack --watch\" \"npm:start\""
   },
   "repository": {