move tsconfig target and lib options to compilerOptions

Author: ryanio

package.json

@@ -11,7 +11,7 @@
   "browser": "dist.browser/index.js",
   "scripts": {
     "benchmarks": "npm run build && ts-node benchmarks/index.ts",
-    "build": "tsc -p tsconfig.json && tsc -p tsconfig.browser.json",
+    "build": "tsc -p tsconfig.prod.json && tsc -p tsconfig.browser.json",
     "prepublishOnly": "npm run test && npm run build",
     "coverage": "nyc --reporter=lcov npm run test:node",
     "docs:build": "typedoc",

tsconfig.browser.json

@@ -1,9 +1,9 @@
 {
-    "extends": "./tsconfig.json",
+    "extends": "./tsconfig.prod.json",
     "compilerOptions": {
       "outDir": "./dist.browser",
-    },
-    "target": "es5",
-    "lib": ["dom", "es5"]
+      "target": "es5",
+      "lib": ["dom", "es5"]
+    }
 }
 

tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "extends": "@ethereumjs/config-tsc",
+  "compilerOptions": {
+    "outDir": "./dist",
+    "target": "ES2017"
+  },
+  "include": ["src/**/*.ts"]
+}