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Questions - boolean

Python - for-loop does not enter correct argument for boolean parameter

I am trying to generate a for-loop in Python that should classify any number as prime/not prime. The suggested command is: def prime_checker(number): is_prime = True for n in range(2, number): ...
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NigelBlainey

python

function

for-loop

if-statement

boolean

Votes: 0

Answers: 3

Latest Answer

I'm not sure why you don't like this idea, it is pretty standard in python (and in programmation in general) and often used. Anyway, the closest thing you could write would be: is_prime = None which ...
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robinood

Is this a scenario where a java boolean can be null? Why does this code compile?

We recently ran into a bug in production that I found to be very interesting. My longtime understanding is that a Java boolean can only be false, or true. However, it seems in a Ternary Operator it ...
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user3604456

java

boolean

conditional-operator

Votes: 0

Answers: 1

Latest Answer

Does anyone know why it compiles just fine? Ultimately, because of autoboxing / autounboxing. When the compiler processes a ternary expression, it uses the second and third operands to choose the re...
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John Bollinger

how can I toggle a boolean parameter in javascript?

I want to toggle a value called 'session' and then, update this value. i've tried to do session=!session, but that didn't work. session is a parameter inside a object, this object are displayed on my ...
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Antônio Víctor Gonçalves Dias

javascript

reactjs

firebase

boolean

Votes: 0

Answers: 1

Latest Answer

Since you want to write a value to a path based on its existing value, you'll want to use a transaction. Something like: const userRef = ref(db, `/usuários/${fistKey}/session`); runTransaction(userRe...
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Frank van Puffelen

i need to output the final part of my JAVA program which is just a game over string , how can i insert it?

these is my program i need to output "game over" if the user enter the string no instead of yes, right now it only works with the yes but i dont know how to add the other option the game is ...
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Johanna

java

if-statement

boolean

logic

Votes: 0

Answers: 0

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