fix(compat): replace const with var, potentially fixing old browser i…

…ssues

fix #71

package.json

@@ -14,7 +14,9 @@
   "main": "./index.js",
   "types": "./index.d.ts",
   "scripts": {
-    "build": "node_modules/.bin/gulp",
+    "build:libphonenumber": "node_modules/.bin/gulp",
+    "build:rewrite": "ts-node scripts/rewrite.ts",
+    "build": "yarn build:libphonenumber && yarn build:rewrite",
     "test": "scripts/test.sh",
     "cz": "git-cz",
     "semantic-release": "semantic-release"
@@ -41,6 +43,7 @@
   "devDependencies": {
     "@types/mkdirp": "^1.0.1",
     "@types/mocha": "8.2.2",
+    "@types/node": "^16.11.12",
     "chai": "4.3.4",
     "commitizen": "^4.2.4",
     "cz-conventional-changelog": "^3.3.0",
@@ -52,6 +55,7 @@
     "pre-commit": "1.x",
     "replace": "1.2.1",
     "rimraf-promise": "2.x",
+    "ts-node": "^10.4.0",
     "typescript": "^4.2.4"
   },
   "config": {

scripts/rewrite.ts

@@ -0,0 +1,15 @@
+
+import { promises } from 'fs'
+import * as path from 'path'
+
+const { readFile, writeFile } = promises;
+
+const distFile = path.resolve( __dirname, '..', 'lib', 'index.js' );
+
+async function rewrite( )
+{
+	const data = await readFile( distFile, 'utf-8' );
+	const res = data.replace( /\bconst /g, 'var ' );
+	await writeFile( distFile, res, 'utf-8' );
+}
+rewrite( );