Happens on CS50 IDE, I don’t know if it is CS50 specific or not.
To replicate it:
user.settings, change line 21
- You should see that on hovering line numbers 1 and 2, little arrows are shown.
- Now reload the page. the value is still
true, but arrows are gone.
On this step:
- if you save the file (CTRL+S), arrows come back.
- if you close the file and re-open it, value becomes