develop an online test portal for assessment.

function test_your_coding_skills(subject, time, question_no, question, answer, marks) {
  your_answer = prompt("Enter your answer");
  if (your_answer == answer) {
    marks += 1;
  }
  else {
    alert("You need to practice" + subject);
  }
  return marks;
}
    
test_your_coding_skills("python", 10, 1, "What is the output of 5 + 2?", 7, 0)