JavaScript

This page contains some information on the Flipper Zero scripting engine, which is based on a modified mJS library.

• Brief mJS description
• Data types
• Built-in methods

JavaScript modules

JS modules use the Flipper app plugin system. Each module is compiled into a .fal library file and is located on a microSD card. Here is a list of implemented modules:

• js_badusb - BadUSB module
• js_serial - Serial module
• js_math - Math module
• js_notification - Notifications module
• js_event_loop - Event Loop module
• js_gpio - GPIO module
• js_gui - GUI module and its submodules:
  • js_gui__submenu - Submenu view
  • js_gui__loading - Hourglass (Loading) view
  • js_gui__empty_screen - Empty view
  • js_gui__text_input - Keyboard-like text input
  • js_gui__text_box - Simple multiline text box
  • js_gui__dialog - Dialog with up to 3 options

All modules have corresponding TypeScript declaration files, so you can set up your IDE to show suggestions when writing JS scripts.