[FEATURE-REQUEST]: Rewrite the codebase to TypeScript

.eslintignore

@@ -1,2 +1,2 @@
 coverage
-.nyc_output
+.nyc_output

.eslintrc.json

@@ -0,0 +1,28 @@
+{
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended"
+  ],
+  "overrides": [
+    {
+      "files": ["*.js"],
+      "rules": {
+        "@typescript-eslint/explicit-function-return-type": "off",
+        "@typescript-eslint/no-var-requires": "off"
+      }
+    }
+  ],
+  "env": { "node": true },
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": { "ecmaVersion": 2019, "sourceType": "module" },
+  "plugins": ["@typescript-eslint"],
+  "rules": {
+    "curly": "error",
+    "eqeqeq": "error",
+    "linebreak-style": "error",
+    "quotes": ["error", "double", { "avoidEscape": true }],
+    "prefer-destructuring": "error",
+    "semi": "error"
+  }
+}

.gitignore

@@ -1,3 +1,3 @@
 node_modules
 coverage
-.nyc_output
+.nyc_output

.npmignore

@@ -6,4 +6,4 @@ example
 package-lock.json
 yarn.lock
 coverage
-.nyc_output
+.nyc_output

.nycrc

@@ -4,7 +4,10 @@
   "statements": 99,
   "functions": 99,
   "branches": 99,
-  "include": [
-     "index.js"
+  "extension": [
+    ".ts"
+  ],
+  "exclude": [
+    "**/*.d.ts"
   ]
-}
+}

.travis.yml

@@ -1,8 +1,8 @@
 language: node_js
 node_js:
-  - "6"
   - "8"
   - "10"
+  - "12"
   - "node"
 script: npm run travis
 cache:

example/index.ts

@@ -0,0 +1,34 @@
+import { Queue } from "../";
+
+const t = new Queue();
+const results: string[] = [];
+
+// add jobs using the familiar Array API
+t.push((cb: Function) => {
+  results.push("two");
+  cb();
+});
+
+t.push(
+  (cb: Function) => {
+    results.push("four");
+    cb();
+  },
+  (cb: Function) => {
+    results.push("five");
+    cb();
+  }
+);
+
+t.unshift((cb: Function) => {
+  results.push("one");
+  cb();
+});
+
+t.splice(2, 0, (cb: Function) => {
+  results.push("three");
+  cb();
+});
+
+// begin processing, get notified on end
+console.log("all done:", results);