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Is there a difference between /\s/g and /\s+/g?
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In the first regex, each space character is being replaced, character by character, with the empty string.
In the second regex, each contiguous string of space characters is being replaced with the empty string because of the +.
However, just like how 0 multiplied by...
Linux: copy and create destination dir if it does not exist
I want a command (or probably an option to cp) that creates the destination directory if it does not exist.
21 Answers
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How can I detect if a browser is blocking a popup?
Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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Storing C++ template function definitions in a .CPP file
...ave stored in a CPP file instead of inline in the header. I know this can be done as long as you know which template types will be used. For example:
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Formatting “yesterday's” date in python
... edited May 11 '19 at 4:40
Boris
4,69255 gold badges4242 silver badges5252 bronze badges
answered Nov 11 '09 at 0:03
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How do I echo and send console output to a file in a bat script?
I have a batch script that executes a task and sends the output to a text file. Is there a way to have the output show on the console window as well?
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Git diff -w ignore whitespace only at start & end of lines
I love to use git diff -w to ignore whitespace differences. But, I just noticed that it ignores even whitespace differences in the middle of lines. How could I only ignore whitespace differences that come at the start (^) or end ($) of lines?
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AngularJS Multiple ng-app within a page
I have just started learning Angular JS and created some basic samples however I am stuck with the following problem.
13 An...
How are multi-dimensional arrays formatted in memory?
...id out contiguously in memory. Arrays are not the same thing as pointers, but because you can often use them pretty much interchangeably it can get confusing sometimes. The compiler keeps track properly, though, which makes everything line up nicely. You do have to be careful with static 2D array...
Value of i for (i == -i && i != 0) to return true in Java
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The only int value for which it works is Integer.MIN_VALUE.
It's because integers are negated using the two's complement way.
Using
System.out.println(Integer.toBinaryString(Integer.MIN_VALUE));
you see that Integer.MIN_VALUE is
10000000000000000000000000000000
Taking the negative v...