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Unicode equivalents for \w and \b in Java regular expressions?
Many modern regex implementations interpret the \w character class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
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Limiting floats to two decimal points
...oblem with floating point numbers that not all numbers can be represented exactly. The command line is just showing you the full floating point form from memory.
With floating point representation, your rounded version is the same number. Since computers are binary, they store floating point number...
textarea - disable resize on x or y?
I know it's possible to disable the resize of a textarea by using:
2 Answers
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How can we match a^n b^n with Java regex?
...e answer is, needless to say, YES! You can most certainly write a Java regex pattern to match anbn. It uses a positive lookahead for assertion, and one nested reference for "counting".
Rather than immediately giving out the pattern, this answer will guide readers through the process of deriving it. ...
PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
..._problem). The probability may be tiny for most of solutions but it still exists.
– Dariusz Walczak
Jul 14 '11 at 12:30
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How to generate a random integer number from within a range
...he only correct way of changing the range of rand() is to divide it into boxes; for example, if RAND_MAX == 11 and you want a range of 1..6, you should assign {0,1} to 1, {2,3} to 2, and so on. These are disjoint, equally-sized intervals and thus are uniformly and independently distributed.
The su...
Position a CSS background image x pixels from the right?
...is no, but can you position a background image with CSS, so that it is a fixed amount of pixels away from the right?
21 Ans...
Multiple simultaneous downloads using Wget?
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use the aria2 :
aria2c -x 16 [url]
# |
# |
# |
# ----> the number of connections
http://aria2.sourceforge.net
I love it !!
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Change values while iterating
... slice you're iterating over.
The specification about range says:
Range expression 1st value 2nd value (if 2nd variable is present)
array or slice a [n]E, *[n]E, or []E index i int a[i] E
So, range uses a[i] as its second value for array...
How do I invert BooleanToVisibilityConverter?
...://msdn.microsoft.com/en-us/library/system.windows.data.ivalueconverter.aspx
In your Convert method, have it return the values you'd like instead of the defaults.
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