Question 1

How to embed JerryScript in a C application for IoT?

Accepted Answer

JerryScript provides a mature C API documented in the API Reference; you need to include the engine in your build, initialize it, and use functions like jerry_eval to execute JavaScript. Examples are available in the documentation for guidance.

Question 2

JerryScript vs Duktape for microcontrollers?

Accepted Answer

JerryScript is optimized for minimal memory footprint with full ES5.1 compliance, while Duktape may offer different size and feature trade-offs. JerryScript is often preferred for strict resource constraints, but Duktape might be more flexible for some use cases.

Question 3

Does JerryScript support ES6 modules?

Accepted Answer

No, JerryScript's module system is based on its own extension API, and it does not fully support ES6 modules due to limited ES2025 compliance. Developers must use the provided Module Extension API for modular code.

Question 4

What's the memory usage of JerryScript on an Arduino?

Accepted Answer

JerryScript can run on devices with less than 64KB RAM and 200KB flash, but actual usage depends on the sketch and configuration. It's designed for low memory consumption, but you may need to optimize your code for specific boards like ESP32.

Question 5

How to debug JavaScript code on JerryScript?

Accepted Answer

JerryScript includes a debugger with a transport interface, allowing remote debugging via documented protocols. Refer to the Debugger documentation for setup steps and usage examples.

Question 6

Is JerryScript good for real-time applications?

Accepted Answer

JerryScript is optimized for low memory usage, not real-time performance; execution speed may be slower than native code. It's best for scripting tasks where memory is the primary constraint, not time-critical operations.

JerryScript

What is JerryScript?

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