Ninja Quiz

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Short quiz with 10 questions about Superheroes developed in functional JavaScript...

2018-10-19, Update

• For $form.addEventListener() add external function btnClicked()
• Add missing removeEventListener() method for btnClicked(), which cause error when starting game for second, third, (etc.) time, without reloading browser. Errors/Updates:
  • In function check(answer) question object was undefined
  • When you click on button to choose answer, it calls check(event.target.value) as much times as you started new game without reloading browser
  • remove unnecessary code, optimize code