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How to use a variable inside a regular expression?
...y answer:
raw strings ('r'):
One of the main concepts you have to understand when dealing with special characters in regular expressions is to distinguish between string literals and the regular expression itself. It is very well explained here:
In short:
Let's say instead of finding a word bou...
Understanding Apache's access log
... URL of the page from which this request was initiated) if any is present, and "-" otherwise.
User-agent is the browser identification string.
The complete(?) list of formatters can be found here. The same section of the documentation also lists other common log formats; readers whose logs don't l...
How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
In an given Android activity, I would like to start a new activity for the user at some point. Once they leave the first activity and arrive at the second, the first activity is stale and I want to remove it completely so it can not be accessed again from the back button.
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General guidelines to avoid memory leaks in C++ [closed]
...to use smart pointers where applicable.
Take a look at the Boost lib, TR1, and smart pointers.
Also smart pointers are now a part of C++ standard called C++11.
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How to find out which view is focused?
I need to find out if any view is focused inside an Activity and what view it is. How to do this?
6 Answers
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Should I use Java's String.format() if performance is important?
We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe).
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Edit line thickness of CSS 'underline' attribute
... In that case you have to wrap the text from each line, before and after the line-break with <span> and apply the border-bottom in there. It's a workaround that could be painful in non-hardcoded scenarios though.
– Fabián
May 24 '19 at 19:02
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How do I split a string by a multi-character delimiter in C#?
...y do in fact include the spaces. Splitting on " is " would give you "This" and "a sentence" rather than "This " and " a sentence". Note the subtle spaces at the end of "This" and beginning of "a sentence". Again, this answer is probably what the questioner actually wants, but it's not what he asked ...
How to break nested loops in JavaScript? [duplicate]
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You need to name your outer loop and break that loop, rather than your inner loop - like this.
outer_loop:
for(i=0;i<5;i++) {
for(j=i+1;j<5;j++) {
break outer_loop;
}
alert(1);
}
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How to configure git bash command line completion?
E.g. on a fresh ubuntu machine, I've just run sudo apt-get git , and there's no completion when typing e.g. git check[tab] .
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