first

.gitignore

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+.env/

Dockerfile

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+FROM selenium/standalone-chrome:4.0.0
+
+ENV SELENIUM_HOST=localhost \
+    SELENIUM_PORT=4444
+
+EXPOSE 4444
+
+# docker run -d -p 4444:4444 --shm-size="4g" -t selenium
+# docker logs -f hash

prepare_script.py

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+import re
+import sys
+
+def add_console_log_to_js(js_file_path):
+    with open(js_file_path, 'r') as file:
+        lines = file.readlines()
+    
+    return_pattern = re.compile(r'\s*return\s+(.*);')
+    
+    modified_lines = []
+    for i, line in enumerate(lines):
+        match = return_pattern.search(line)
+        if match:
+            return_expression = match.group(1)
+            indentation = len(line) - len(line.lstrip())
+            log_statement = f'{" " * indentation}console.log("Returning from function at line {i + 1}: ", {return_expression});\n'
+            modified_lines.append(log_statement)
+        modified_lines.append(line)
+    
+    with open(js_file_path, 'w') as file:
+        file.writelines(modified_lines)
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python prepare_script.py <path_to_js_file>")
+        sys.exit(1)
+    
+    js_file_path = sys.argv[1]
+    add_console_log_to_js(js_file_path)

run_js.py

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+import sys
+from selenium import webdriver
+
+def run_js_in_browser(js_file_path):
+    with open(js_file_path, 'r') as file:
+        js_code = file.read()
+
+    options = webdriver.ChromeOptions()
+    options.set_capability('goog:loggingPrefs', {'browser': 'ALL'})
+
+    driver = webdriver.Remote(
+        command_executor='http://localhost:4444/wd/hub',
+        options=options,
+    )
+
+    driver.get("about:blank")
+    res = driver.execute_script(js_code)
+    print(res)
+
+    for entry in driver.get_log('browser'):
+        print(entry)
+
+    driver.quit()
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python run_js.py <path_to_js_file>")
+        sys.exit(1)
+    
+    js_file_path = sys.argv[1]
+    run_js_in_browser(js_file_path)

test2.js

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+var a = "Hello from the other side";
+console.log(a);
+
+function greet() {
+    var b = "Hello darkness my old friend";
+    console.log("Returning from function at line 6: ", b);
+    return b;
+}
+
+greet();