fix: eslint cleanup

Automated changes.

spec/mongoosePluginSpec.js

@@ -4,15 +4,15 @@ const { describe } = require('ava-spec');
 const test = require('ava');
 const mongooseCursorPaginate = require('../src/mongoose.plugin');
 
-let MONGO_URI = 'mongodb://127.0.0.1/mongoose_paginate';
+const MONGO_URI = 'mongodb://127.0.0.1/mongoose_paginate';
 
-let AuthorSchema = new mongoose.Schema({ name: String });
+const AuthorSchema = new mongoose.Schema({ name: String });
 
 AuthorSchema.plugin(mongooseCursorPaginate, { name: 'paginateFN' });
 
-let Author = mongoose.model('Author', AuthorSchema);
+const Author = mongoose.model('Author', AuthorSchema);
 
-let PostSchema = new mongoose.Schema({
+const PostSchema = new mongoose.Schema({
   title: String,
   date: Date,
   body: String,
@@ -24,7 +24,7 @@ let PostSchema = new mongoose.Schema({
 
 PostSchema.plugin(mongooseCursorPaginate);
 
-let Post = mongoose.model('Post', PostSchema);
+const Post = mongoose.model('Post', PostSchema);
 
 test.before('start mongoose connection and add data into collection', async () => {
   await mongoose.connect(MONGO_URI);
@@ -33,7 +33,7 @@ test.before('start mongoose connection and add data into collection', async () =
 
   let post,
     posts = [];
-  let date = new Date();
+  const date = new Date();
 
   for (let i = 1; i <= 100; i++) {
     post = new Post({
@@ -50,17 +50,17 @@ test.before('start mongoose connection and add data into collection', async () =
 
 describe('mongoose plugin', (it) => {
   it('paginate function should initialized by provided name', function(t) {
-    let promise = Author.paginateFN();
+    const promise = Author.paginateFN();
     t.is(promise.then instanceof Function, true);
   });
 
   it('return promise', function(t) {
-    let promise = Post.paginate();
+    const promise = Post.paginate();
     t.is(promise.then instanceof Function, true);
   });
 
   it('should return data in expected format', async function(t) {
-    let data = await Post.paginate();
+    const data = await Post.paginate();
     t.is(data.hasOwnProperty('results'), true);
     t.is(data.hasOwnProperty('previous'), true);
     t.is(data.hasOwnProperty('hasPrevious'), true);

src/aggregate.js

@@ -36,8 +36,8 @@ const config = require('./config');
  */
 module.exports = async function aggregate(collection, params) {
   params = _.defaults(await sanitizeParams(collection, params), { aggregation: [] });
-  let cursorQuery = generateCursorQuery(params);
-  let $sort = generateSort(params);
+  const cursorQuery = generateCursorQuery(params);
+  const $sort = generateSort(params);
 
   let index = _.findIndex(params.aggregation, (step) => !_.isEmpty(step.$match));
 
@@ -57,13 +57,13 @@ module.exports = async function aggregate(collection, params) {
   params.aggregation.splice(index + 1, 0, { $sort });
   params.aggregation.splice(index + 2, 0, { $limit: params.limit + 1 });
 
-  let options = config.COLLATION ? { collation: config.COLLATION } : undefined;
+  const options = config.COLLATION ? { collation: config.COLLATION } : undefined;
 
   // Support both the native 'mongodb' driver and 'mongoist'. See:
   // https://www.npmjs.com/package/mongoist#cursor-operations
   const aggregateMethod = collection.aggregateAsCursor ? 'aggregateAsCursor' : 'aggregate';
 
-  let results = await collection[aggregateMethod](params.aggregation, options).toArray();
+  const results = await collection[aggregateMethod](params.aggregation, options).toArray();
 
   return prepareResponse(results, params);
 };