javaScript:

0 == "0" // true
0 // false
"0" // true

o.0

"0" is a string and not empty, 0 is an int, by default 0 is false and above is true when cast to bool.
by comparing 0 == "0" i imagine it "typeCasts", by taking the value of that string for the comparison.

now, dont take my words for the truth, because i didnt bother looking it up and just gave my guess.

Would be the same in python