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In Python, when to use a Dictionary, List or Set?
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A list keeps order, dict and set don't: when you care about order, therefore, you must use list (if your choice of containers is limited to these three, of course;-).
dict associates with each key a value, while list and set just cont...
How do I parse a string with a decimal point to a double?
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did not work for me: skips comma and returns and int as double
– fnc12
Jul 8 '15 at 15:44
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Mockito: Trying to spy on method is calling the original method
...the test and package-private method were in the same package. I think perhaps Mockito has issues with package-private methods in general.
– Dave
May 11 '17 at 2:19
add a comme...
How do you get a timestamp in JavaScript?
...riptions in this answer. Feel free to ask questions if anything is unclear
PS: sadly someone merged this to the top answer without giving credit.
Quick and dirty solution:
Date.now() /1000 |0
Warning: it might break in 2038 and return negative numbers if you do the |0 magic. Use Math.floor(...
pandas: multiple conditions while indexing data frame - unexpected behavior
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As you can see, the AND operator drops every row in which at least one
value equals -1. On the other hand, the OR operator requires both
values to be equal to -1 to drop them.
That's right. Remember that you're writing the condition in terms of what you ...
Android equivalent to NSNotificationCenter
...components to explicitly register with one another
see their sample on https://code.google.com/p/guava-libraries/wiki/EventBusExplained
// Class is typically registered by the container.
class EventBusChangeRecorder {
@Subscribe public void recordCustomerChange(ChangeEvent e) {
recordChange(...
When should we call System.exit in Java
...red to do anything other than halt the JVM; shutdown hooks will not run.
PS: The JVM can shut down in either an orderly or abrupt manner.
An orderly shutdown is initiated when the last “normal” (nondaemon) thread terminates, someone calls System.exit, or by other platform-specific means (su...
How to permanently add a private key with ssh-add on Ubuntu? [closed]
... later you need to additionally edit your ssh config as described here: https://github.com/jirsbek/SSH-keys-in-macOS-Sierra-keychain
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Launch custom android application from android browser
...work for someone, refer this please: stackoverflow.com/a/21727055/2695276 PS: struggled for days over this.
– Rajat Sharma
Jan 2 '15 at 21:06
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How can I get Maven to stop attempting to check for updates for artifacts from a certain group from
...updatePolicy tag didn't work for me. However Rich Seller mentioned that snapshots should be disabled anyways so I looked further and noticed that the extra repository that I added to my settings.xml was causing the problem actually. Adding the snapshots section to this repository in my settings.xml ...