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How to detect escape key press with pure JS or jQuery?
... Actually, it seems that keypress doesn't fire on the escape key. At least, not in Chrome on a Mac.
– samson
Jul 20 '15 at 18:36
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How to filter Pandas dataframe using 'in' and 'not in' like in SQL
...False
2 False False
3 False True
From this, to retain rows where at least one column is True, we can use any along the first axis:
df2[['A', 'B']].isin(c1).any(axis=1)
0 True
1 False
2 False
3 True
dtype: bool
df2[df2[['A', 'B']].isin(c1).any(axis=1)]
A B C
0 x w 0
3...
querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...ren of the element or document it is invoked on. This fact seems to be the least well-known, so I am bolding it.
getElement* calls return direct references to the DOM, whereas querySelector* internally makes copies of the selected elements before returning references to them. These are referred to a...
Original purpose of ? [closed]
... used for this purpose today because HTTP as we know it today is still, at least fundamentally, a stateless protocol.
This use case was actually first described in HTML 3.2 (I'm surprised HTML 2.0 didn't include such a description):
type=hidden
These fields should not be rendered and provide a mean...
Getting Chrome to accept self-signed localhost certificate
...port)
Use the .crt and .key files in your server
Extra steps (for Mac, at least):
Import the CA cert at "File > Import file", then also find it in the list, right click it, expand "> Trust", and select "Always"
Add extendedKeyUsage=serverAuth,clientAuth below basicConstraints=CA:FALSE, and m...
Is it necessary to explicitly remove event handlers in C#
...ent handler.) If we didn't unsubscribe, then the BandwidthUI would live at least as long as the transfer service.
Personally I rarely come across this - usually if I subscribe to an event, the target of that event lives at least as long as the publisher - a form will last as long as the button whic...
Foreign Key to multiple tables
... the right design for my current project, where one table can reference at least 3 maybe more in the future
– Can Rau
Oct 19 '19 at 21:05
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Trying to start a service on boot on Android
...oid 3.1+ you don't receive BOOT_COMPLETE if user never started your app at least once or user "force closed" application.
This was done to prevent malware automatically register service. This security hole was closed in newer versions of Android.
Solution:
Create app with activity. When user run i...
How to align content of a div to the bottom
...inal problem, #header-content should really be a p element, or at the very least a span
– Josh Burgess
Feb 11 '14 at 21:18
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Android: how to handle button click
...ion 1:
Unfortunately the one in which you you say is most intuitive is the least used in Android. As I understand, you should separate your UI (XML) and computational functionality (Java Class Files). It also makes for easier debugging. It is actually a lot easier to read this way and think about An...