How to use 'val' as a type for global vars

[Dat Dinhquoc]

I wish to assign some frequently used JS functions to global 'val' variables:

#include <emscripten>

#include <emscripten/val.h>

val log;

int main(){

    log = val::global("console")["log"];

}

But faced this error:

fatal error: call to deleted constructor of 'emscripten::val'
val log;

All other types are fine to be globals.