creating, saving, reading files using esp8266? Is there a way?

I have the esp8266 serving up some webpages on the esp8266.
I need to be able to store, retrieve & update an object, json file, txt file or XML file
but there's no file system on the espruino.

I am thinking to may be just create variables or use an array to store the info within
a js script. I'm wondering if there is a better way?

I've studied the http module and am trying to understand if there is a way to
load an array, object that I store in a variable with the USERS and BOARD data.

I would need approx 10 users.

USERS
id : 100
name : "Dave Coley",
email : "dave@esp8266.ca",
phone : "123-456-7890",
dateAdded : "2021-04-12"

BOARD
id : "B1001",
bName : "daves_esp8266",
bLocation : "daves_garage",

Another question I have is if I store the data in a javascript file (users.js & board.js)
is it secure?

Any help on this would be appreciated.
D

Mon 2021.04.12

Hi @coolio were you aware there is search dialog at the upper right of most Espruino site pages? A wealth of information may be obtained with use of this tool.

The full Javascript API may be obtained from the main page:

Menu >> Documentation >> API Reference

http://www.espruino.com/Reference#software

Which contains detail on all current functions to perform the task you are after.

Class JSON for data formatting

http://www.espruino.com/Reference#t_l_JSON_parse

'understand if there is a way to load an array'

See ARRAY class:

http://www.espruino.com/Reference#l_Array_Array

'but there's no file system on the espruino'

See the FILE class:

http://www.espruino.com/Reference#l_File_read
http://www.espruino.com/Reference#fs

ESP8266 Class

http://www.espruino.com/Reference#t_l_ESP8266_crc32

'I need to be able to store, retrieve'

I have been successful at off board storage with the AT24 series chips:

http://www.espruino.com/EEPROMs
http://www.espruino.com/AT24

Optional to RAM, Flash

http://www.espruino.com/Data+Collection#line=123

http://www.espruino.com/File+IO
See post #17 by @hungryforcodes that the above link may not have been tested using ESP8266 yet.
http://forum.espruino.com/comments/15912413/

Another useful link

http://www.espruino.com/Tutorials

and of course the Javascript topic within the forum

Home >> Official Espruino Devices >> JavaScript

I am now...
I had tried it twice but nothing came up...
I just tried again json, csv, etc and lots came up in the search so thanks so much.
I'll check out the links you've provided.

also, . . . . should that search box not return what might be expected,

Launch a new Google page instance and type a concise request using the 'site:' keyword qualifier. Google search something like:

how to illuminate the onboard LED for Pico site:espruino.com
New interpreter error: FIFO_FULL site:forum.espruino.com