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Is it safe to remove selected keys from map within a range loop?
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Sebastian's answer is accurate, but I wanted to know why it was safe, so I did some digging into the Map source code. It looks like on a call to delete(k, v), it basically just sets a flag (as well as changing the count value) instead of actually deleting the value:
b->...
Logging framework incompatibility
...re diddling around with versions until all the red arrows disappeared, but now it's both working and all blue arrows.
– Carl Smotricz
Aug 20 '10 at 8:32
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View's getWidth() and getHeight() returns 0
...victim)
2. Add a runnable to the layout queue: View.post()
Not very well known and my favourite solution. Basically just use the View's post method with your own runnable. This basically queues your code after the view's measure, layout, etc. as stated by Romain Guy:
The UI event queue will proces...
Mediator Vs Observer Object-Oriented Design Patterns
...d want to use the observer pattern, they key is that an object should not know what other objects are observing it's state.
Mediator is a little more specific, it avoids having classes communicate directly but instead through a mediator. This helps the Single Responsibility principle by allowing co...
URL encoding the space character: + or %20?
...le the "+" character in the path fragment part can be left unencoded.
Now in the query part, spaces may be encoded to either "+" (for backwards compatibility: do not try to search for it in the URI standard) or "%20" while the "+" character (as a result of this ambiguity) has to be escaped to "...
Where is the syntax for TypeScript comments documented?
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The right syntax is now the one used by TSDoc. It will allow you to have your comments understood by Visual Studio Code or other documentation tools.
A good overview of the syntax is available here and especially here. The precise spec should b...
Should composer.lock be committed to version control?
...ession for your dependency management system as the dependency version has now gone back to being implicitly defined.
Also, your project should never have to be rebuilt or have its dependencies reacquired in each environment, especially prod. Your deliverable (tar, zip, phar, a directory, etc) shou...
Scatter plot and Color mapping in Python
...here is a reference page of colormaps showing what each looks like. Also know that you can reverse a colormap by simply calling it as cmap_name_r. So either
plt.scatter(x, y, c=t, cmap=cm.cmap_name_r)
# or
plt.scatter(x, y, c=t, cmap="cmap_name_r")
will work. Examples are "jet_r" or cm.plasma_...
What's the difference between io.sockets.emit and broadcast?
...oadcast.emit('BroadCastExceptMe',{data:"HAVE A NICE DAY"});
Conclusion:- Now it will totally depends our business requirement that which one will be preferable.
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Mongodb Explain for Aggregation framework
...gate(
[ ...your pipeline...],
{ explain: true }
)
Thanks to Rafa, I know that it was possible to do even in 2.4, but only through runCommand(). But now you can use aggregate as well.
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