Method bind

lib/async_hooks.js:250–272

(fn, thisArg)

  }

  bind(fn, thisArg) {
    validateFunction(fn, 'fn');
    let bound;
    if (thisArg === undefined) {
      const resource = this;
      bound = function(...args) {
        ArrayPrototypeUnshift(args, fn, this);
        return ReflectApply(resource.runInAsyncScope, resource, args);
      };
    } else {
      bound = FunctionPrototypeBind(this.runInAsyncScope, this, fn, thisArg);
    }
    ObjectDefineProperties(bound, {
      'length': {
        __proto__: null,
        configurable: true,
        enumerable: false,
        value: fn.length,
        writable: false,
      },
    });
    return bound;
  }

  static bind(fn, type, thisArg) {
    type ||= fn.name;