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Why do we copy then move?
I saw code somewhere in which someone decided to copy an object and subsequently move it to a data member of a class. This left me in confusion in that I thought the whole point of moving was to avoid copying. Here is the example:
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How to uninstall a Windows Service when there is no executable for it left on the system?
...e Windows Resource Kit) by running the following in an "administrator" command prompt:
sc.exe delete <service name>
where <service name> is the name of the service itself as you see it in the service management console, not of the exe.
You can find sc.exe in the System folder and it ...
The difference between try/catch/throw and try/catch(e)/throw e
...milar in that both will catch every exception thrown inside the try block (and, unless you are simply using this to log the exceptions, should be avoided). Now look at these:
try { ... }
catch ()
{
/* ... */
throw;
}
try { ... }
catch (Exception e)
{
/* ... */
throw;
}
try { ... }...
how to concatenate two dictionaries to create a new one in Python? [duplicate]
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Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, bes...
“ValueError: zero length field name in format” error in Python 3.0,3.1,3.2
I'm trying learn Python (3 to be more specific) and I'm getting this error:
3 Answers
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Is there any way to prevent input type=“number” getting negative values?
.../ spinner. However, the user can still manually enter in a negative number and have that field's value read as a negative number, thus bypassing the min attribute.
– ecbrodie
Jul 14 '15 at 15:49
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Huawei, logcat not showing the log for my app?
...uctions (from denispyr's answer on Why doesn't logcat show anything in my Android?)
Dial
*#*#2846579#*#*
and you will see a hidden menu. Go to the Project Menu > Background Setting > Log setting and define the log availability (log switch) and level (log level setting).
And then ...
WAMP 403 Forbidden message on Windows 7
... me too. Though in my case I had to first "Put offline", then "Put online" and worked without any other changes to my config files! Thank you!!
– Osmar
Apr 18 '16 at 3:59
1
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How to convert number to words in java
...ude mechanism to convert numbers to words (e.g. using a few static arrays) and based on the size of the number translating that into an english text. But we are running into issues for numbers which are huge.
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What is DOM Event delegation?
Can anyone please explain event delegation in JavaScript and how is it useful?
11 Answers
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