I having a problem in changing image. When i click to button it doesn't change i don't know why ?

Question

https://code.sololearn.com/WDEVj5687OQ7/?ref=app

Answer 1

id of images is img1 and img2 not photo1 and photo2.
change it to :
document.getElementById('img1').src=xxxx

https://code.sololearn.com/WDi9SLGZxvV5/?ref=app

Answer 2

Thank you both 😊