build(merkling): Add tsc support for consuming directly in node over npm

Author: kanej

.circleci/config.yml

@@ -11,6 +11,9 @@ jobs:
       - run:
           name: test
           command: npm test
+      - run:
+          name: build
+          command: npm run build
       - run:
           name: release
           command: npm run semantic-release || true

package-lock.json

@@ -10,7 +10,8 @@
     "type": "git",
     "url": "https://github.com/kanej/merkling.git"
   },
-  "main": "src/index.js",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "scripts": {
     "test": "npm run test:unit",
     "test:unit": "jest --runInBand --coverage --config=jest.unit.json",

package.json

@@ -0,0 +1,3 @@
+import { Merkling } from './merkling'
+
+module.exports = Merkling

src/index.ts

@@ -32,8 +32,10 @@ export default class InternalGraph {
   topologicalSort(): number[] {
     const allVertexes = new Set<number>(
       Array.from(this._matrix.keys()).concat(
-        Array.from(this._matrix.values()).flatMap(
-          (s: Set<number>): number[] => Array.from(s)
+        Array.from(this._matrix.values()).reduce(
+          (acc: number[], s: Set<number>): number[] =>
+            acc.concat(Array.from(s)),
+          []
         )
       )
     )

src/internalGraph.ts

@@ -1,23 +1,17 @@
 {
   "compilerOptions": {
     /* Basic Options */
-    "target": "ESNEXT" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
+    "target": "ES2015" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */,
     "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
     "skipLibCheck": true,
-    "lib": [
-      "dom",
-      "es6",
-      "dom.iterable",
-      "scripthost",
-      "esnext"
-    ] /* Specify library files to be included in the compilation. */,
+    "lib": [] /* Specify library files to be included in the compilation. */,
     // "allowJs": true,                       /* Allow javascript files to be compiled. */
     // "checkJs": true,                       /* Report errors in .js files. */
     // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
-    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    "declaration": true /* Generates corresponding '.d.ts' file. */,
     // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
     "sourceMap": true /* Generates corresponding '.map' file. */,
-    // "outFile": "./dist/merkling.js",                       /* Concatenate and emit output to single file. */
+    // "outFile": "./dist/merkling.js" /* Concatenate and emit output to single file. */,
     "outDir": "./dist" /* Redirect output structure to the directory. */,
     // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
     // "composite": true,                     /* Enable project compilation */
@@ -46,7 +40,7 @@
     // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
 
     /* Module Resolution Options */
-    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */,
     // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
     // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
     // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */