Selenium-webdriver Pass An Array Of Functions As Argument To ExecuteScript

import webdriver from 'selenium-webdriver';

const driver = new webdriver.Builder()
              .withCapabilities(webdriver.Capabilities.chrome())
              .build();

driver.get('https://www.google.com');
let foo = function(rules) {
  rules.forEach(rule => {
    rule();
  });
}
let bar = function() { return 'bar' };
let baz = function() { return 'baz' };
driver.executeScript(foo, [bar, baz]).then(function(result) {
  console.log(result);
});

driver.quit();

it errors out with

WebDriverError: unknown error: rule is not a function


let foo = function(rules) {
  return rules;
  // rules.forEach(rule => {
  //   rule();
  // });
}
let bar = function() { return 'bar' };
let baz = function() { return 'baz' };
driver.executeScript(foo, [bar, baz]).then(function(result) {
  console.log(result); // refer the log pasted below
});

Looks like the function are being serialized a string

[ 'function bar() {\n  return \'bar\';\n}',
  'function baz() {\n  return \'baz\';\n}' ]

Any pointer on how to pass array of functions as arguments would be helpful.

I have found a different work around, w/o using evalexplicitly, but in similar fashion.

1. the functions to be injected must be named function

2. inject the function.toString() as the content of a <script>

   function foo(rules) {
     var result = [];
     rules.forEach(rule => {
       result.push(rule());
     });
     return result;
   }
   function bar() { return 'bar' };
   function baz() { return 'baz' };
   
   function inject(content) {
     var script = document.createElement('script');
     script.innerHTML = content;
     document.head.appendChild(script);
   }
   let script = `${bar.toString()} ${baz.toString()} ${foo.toString()}`;
   
   driver.executeScript(inject, script);
   

3. then execute the desired function as

   driver.executeScript('return foo([bar, baz])').then(function(result) {
     // use the result
   });
   

complete example

// example.js
import webdriver from 'selenium-webdriver';

const driver = new webdriver.Builder()
  .withCapabilities(webdriver.Capabilities.chrome())
  .build();

driver.get('https://www.google.com');

function foo(rules) {
  var result = [];
  rules.forEach(rule => {
    result.push(rule());
  });
  return result;
}
function bar() { return 'bar' };
function baz() { return 'baz' };

function inject(content) {
  var script = document.createElement('script');
  script.innerHTML = content;
  document.head.appendChild(script);
}
let script = `${bar.toString()} ${baz.toString()} ${foo.toString()}`;

driver.executeScript(inject, script);

driver.executeScript('return foo([bar, baz])').then(functn
driver.executeScript('return foo([bar, baz])').then(function(result) {
  console.log(result);
});

driver.quit();

> babel-node example.js

[ 'bar', 'baz' ]