1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
| 'use strict';
|
| let collection;
| let cursor;
| let db;
|
| function loadCollection() {
| if (!collection) {
| collection = require('./collection');
| }
| return collection;
| }
|
| function loadCursor() {
| if (!cursor) {
| cursor = require('./cursor');
| }
| return cursor;
| }
|
| function loadDb() {
| if (!db) {
| db = require('./db');
| }
| return db;
| }
|
| module.exports = {
| loadCollection,
| loadCursor,
| loadDb
| };
|
|
