Resolves Chalarangelo#1043

Snippet now checks the length of the queryString to decide if it should use ? or &

Author: Chalarangelo

snippets/objectToQueryString.md

@@ -6,14 +6,14 @@ tags: utility,object,function,intermediate
 Returns a query string generated from the key-value pairs of the given object.
 
 Use `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.
-Determine the `symbol` to be either `?` or `&` based on the `index` and concatenate `val` to `queryString` only if it's a string.
+Determine the `symbol` to be either `?` or `&` based on the `length` of `queryString` and concatenate `val` to `queryString` only if it's a string.
 Return the `queryString` or an empty string when the `queryParameters` are falsy.
 
 ```js
 const objectToQueryString = queryParameters => {
   return queryParameters
     ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {
-      const symbol = index === 0 ? '?' : '&';
+      const symbol = queryString.length === 0 ? '?' : '&';
       queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';
       return queryString;
     }, '')