duktape_basic.c

c

#include <stdio.h>
#include <duktape.h>

static duk_ret_t native_print(duk_context *ctx) {
    printf("%s\n", duk_to_string(ctx, 0));
    return 0;  // No return value (= undefined)
}

int main(int argc, char *argv[]) {
    duk_context *ctx = duk_create_heap_default();
    if (!ctx) {
        printf("Failed to create a Duktape heap.\n");
        return 1;
    }

    // Register a native function
    duk_push_c_function(ctx, native_print, 1);
    duk_put_global_string(ctx, "print");

    // Evaluate a string containing JavaScript
    duk_eval_string(ctx, "print('Hello from Duktape embedded in C!');");
    
    // Clean up and exit
    duk_destroy_heap(ctx);
    return 0;
}