use standard URLSearchParams insead of custom functions

node_modules/@ungap/url-search-params/package.json

@@ -0,0 +1,68 @@
+{
+  "_args": [
+    [
+      "@ungap/url-search-params@0.1.4",
+      "/home/s2/Code/vanillajs-seed"
+    ]
+  ],
+  "_from": "@ungap/url-search-params@0.1.4",
+  "_id": "@ungap/url-search-params@0.1.4",
+  "_inBundle": false,
+  "_integrity": "sha512-RLwrxCTDNiNev9hpr9rDq8NyeQ8Nn0X1we4Wu7Tlf368I8r+7hBj3uObhifhuLk74egaYaSX5nUsBlWz6kjj+A==",
+  "_location": "/@ungap/url-search-params",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "@ungap/url-search-params@0.1.4",
+    "name": "@ungap/url-search-params",
+    "escapedName": "@ungap%2furl-search-params",
+    "scope": "@ungap",
+    "rawSpec": "0.1.4",
+    "saveSpec": null,
+    "fetchSpec": "0.1.4"
+  },
+  "_requiredBy": [
+    "/"
+  ],
+  "_resolved": "https://registry.npmjs.org/@ungap/url-search-params/-/url-search-params-0.1.4.tgz",
+  "_spec": "0.1.4",
+  "_where": "/home/s2/Code/vanillajs-seed",
+  "author": {
+    "name": "Andrea Giammarchi"
+  },
+  "bugs": {
+    "url": "https://github.com/ungap/url-search-params/issues"
+  },
+  "description": "The URLSearchParams polyfill.",
+  "devDependencies": {
+    "coveralls": "^3.0.9",
+    "istanbul": "^0.4.5",
+    "uglify-js": "^3.7.0"
+  },
+  "homepage": "https://github.com/ungap/url-search-params#readme",
+  "keywords": [
+    "URLSearchParams",
+    "polyfill",
+    "ungap"
+  ],
+  "license": "ISC",
+  "main": "cjs/index.js",
+  "module": "esm/index.js",
+  "name": "@ungap/url-search-params",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ungap/url-search-params.git"
+  },
+  "scripts": {
+    "build": "npm run cjs && npm run esm && npm run min && npm run test && npm run size",
+    "cjs": "cp index.js cjs/ && echo 'module.exports = self.URLSearchParams;' >> cjs/index.js",
+    "coveralls": "cat ./coverage/lcov.info | coveralls",
+    "esm": "cp index.js esm/ && echo 'export default self.URLSearchParams;' >> esm/index.js",
+    "min": "uglifyjs index.js --support-ie8 --comments=/^!/ -c -m -o min.js",
+    "size": "cat index.js | wc -c && cat min.js | wc -c && gzip -c9 min.js | wc -c && cat min.js | brotli | wc -c",
+    "test": "istanbul cover test/index.js"
+  },
+  "unpkg": "min.js",
+  "version": "0.1.4"
+}