url: add benchmark for param append for URL and URLSearchParams

Author: MattIPv4

benchmark/url/url-searchparams-append.js

@@ -0,0 +1,19 @@
+'use strict';
+const common = require('../common.js');
+
+const bench = common.createBenchmark(main, {
+  type: ['URL', 'URLSearchParams'],
+  n: [1e4],
+});
+
+function main({ type, n }) {
+  const params = type === 'URL' ?
+    new URL('https://nodejs.org').searchParams :
+    new URLSearchParams();
+
+  bench.start();
+  for (let i = 0; i < n; i++) {
+    params.append('hello', 'world');
+  }
+  bench.end(n);
+}