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Does Python have a ternary conditional operator?
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You can index into a tuple:
(falseValue, trueValue)[test]
test needs to return True or False.
It might be safer to always implement it as:
(falseValue, trueValue)[test == True]
or you can use the built-in bool() to assure a Boolean value:
(falseValue, trueValue)[bool(<...
Faster way to develop and test print stylesheets (avoid print preview every time)?
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I've just tested what @TylerH said in Firefox v68 and it works.
– StR
Aug 8 '19 at 14:55
add a comment
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How many system resources will be held for keeping 1,000,000 websocket open? [closed]
...rrent TCP connections is not an issue.
I can affirm that based on our own tests (full disclosure: I am the CTO at Lightstreamer).
We had to demonstrate several times, to some of our customers, that 1 million connections can be reached on a single box (and not necessarily a super-monster machine). ...
What does the Java assert keyword do, and when should it be used?
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@ElMac - assertions are for the dev/debug/test parts of the cycle - they are not for production. An if block runs in prod. Simple assertions won't break the bank, but expensive assertions that do complex data validation might bring down your production environment,...
How to run only one task in ansible playbook?
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FWIW with Ansible 2.2 one can use include_role:
playbook test.yml:
- name: test
hosts:
- 127.0.0.1
connection: local
tasks:
- include_role:
name: test
tasks_from: other
then in roles/test/tasks/other.yml:
- name: say something else
shell: echo "I...
Match everything except for specified strings
...x library and it only works like this : ^(?!red|green|blue). Also true for testing it on regex101.com . So is the above a typo missing a ^ or does it actually work like that in Java/Perl/Python .. ?
– Peter
Jul 31 '19 at 9:47
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Maven2 property that indicates the parent directory
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Don't put "test" for the phase. Caused me a variety of problems. Works great as shown above.
– ElectronicBlacksmith
Jan 22 '18 at 17:44
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Mockito test a void method throws an exception
...void return type. It can also throw a number of exceptions so I'd like to test those exceptions being thrown. All attempts have failed with the same reason:
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What is so bad about singletons? [closed]
...erently cause code to be tightly coupled. This makes faking them out under test rather difficult in many cases.
They carry state around for the lifetime of the application. Another hit to testing since you can end up with a situation where tests need to be ordered which is a big no no for unit tests...
Format number to always show 2 decimal places
...ath.round will not always give accurate results due to rounding errors. I tested this with 1.005, which should round to 1.01, but it gives 1.00. Use my answer for consistent accuracy: stackoverflow.com/a/34796988/3549440.
– Nate
Jan 14 '16 at 18:39
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