Initial commit

Created from https://vercel.com/new

lib/url.js

@@ -0,0 +1,43 @@
+export function removeTrailingSlash(url) {
+  return url && url.length > 1 && url.endsWith('/') ? url.slice(0, -1) : url;
+}
+
+export function removeWWW(url) {
+  return url && url.length > 1 && url.startsWith('www.') ? url.slice(4) : url;
+}
+
+export function getDomainName(str) {
+  try {
+    return new URL(str).hostname;
+  } catch (e) {
+    return str;
+  }
+}
+
+export function getQueryString(params = {}) {
+  const map = Object.keys(params).reduce((arr, key) => {
+    if (params[key] !== undefined) {
+      return arr.concat(`${key}=${encodeURIComponent(params[key])}`);
+    }
+    return arr;
+  }, []);
+
+  if (map.length) {
+    return `?${map.join('&')}`;
+  }
+
+  return '';
+}
+
+export function makeUrl(url, params) {
+  return `${url}${getQueryString(params)}`;
+}
+
+export function safeDecodeURI(s) {
+  try {
+    return decodeURI(s);
+  } catch (e) {
+    console.error(e);
+  }
+  return s;
+}