Add tslint

Author: abraham

package.json

@@ -8,11 +8,12 @@
   "scripts": {
     "build": "tsc && rollup -c",
     "clean": "rimraf dist",
+    "lint": "tslint --project tsconfig.json",
     "prebuild": "npm run clean",
     "prepare": "npm run build",
     "prepublishOnly": "pkg-ok",
     "start": "jest --watch",
-    "test": "jest"
+    "test": "jest && npm run lint"
   },
   "repository": {
     "type": "git",
@@ -40,6 +41,7 @@
     "rimraf": "2.6.2",
     "rollup": "0.63.4",
     "ts-jest": "23.0.1",
+    "tslint": "5.11.0",
     "typescript": "2.9.2"
   },
   "jest": {

tslint.json

@@ -0,0 +1,19 @@
+{
+  "defaultSeverity": "error",
+  "extends": [
+    "tslint:recommended"
+  ],
+  "jsRules": {},
+  "rules": {
+    "quotemark": [true, "single"],
+    "ban-types": [
+      true,
+      ["Object", "Avoid using the `Object` type. Did you mean `object`?"],
+      ["Boolean", "Avoid using the `Boolean` type. Did you mean `boolean`?"],
+      ["Number", "Avoid using the `Number` type. Did you mean `number`?"],
+      ["String", "Avoid using the `String` type. Did you mean `string`?"],
+      ["Symbol", "Avoid using the `Symbol` type. Did you mean `symbol`?"]
+    ]
+  },
+  "rulesDirectory": []
+}