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boundingRectWithSize for NSAttributedString returning wrong size
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Attention! It does not always work! Sometimes the returned width is larger than the width of the size parameter. Even Apples method documentation states: "The constraints you specify in the size parameter are a guide for the renderer for how to size the string. How...
How are msys, msys2, and msysgit related to each other?
...io C Hamano -- gitster -- in commit 116a866, 29 Jan 2016)
For a long time, Git for Windows lagged behind Git's 2.x releases because the Git for Windows developers wanted to let that big jump coincide with a well-needed jump away from MSys to MSys2.
To understand why this is such a big iss...
is node.js' console.log asynchronous?
... and asynchronous when it's a pipe (to avoid blocking for long periods of time).
That is, in the following example, stdout is non-blocking while stderr is blocking:
$ node script.js 2> error.log | tee info.log
In daily use, the blocking/non-blocking dichotomy is not something you shou...
How do you check if a JavaScript Object is a DOM Object?
...on us to invest days or weeks working around their refusal to get with the times.
– mopsyd
May 9 '18 at 4:27
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Faster s3 bucket duplication
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It supports non-concurrent sync based on file modified time, size, etc. It was blazing fast when I tried it. I believe the objects are copied directly on S3 without downloading them to the local machine. It doesn't run in parallel by default but I'm sure you could have multiple s...
IEnumerable to string [duplicate]
...egate(new StringBuilder(), (seed, c) => seed.Append(c)).ToString();
I timed this using the same tests that Jeff Mercado used and this was 1 second slower across 1,000,000 iterations on the same 300 character sequence (32-bit release build) than the more explicit:
static string StringBuilderCha...
Accessing class variables from a list comprehension in the class definition
...his design decision was made in order to throw an error at genexp creation time instead of iteration time when creating the outermost iterable of a generator expression throws an error, or when the outermost iterable turns out not to be iterable. Comprehensions share this behavior for consistency.
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How does password salt help against a rainbow table attack?
...pting to crack the password.
A public salt does two things: makes it more time-consuming to crack a large list of passwords, and makes it infeasible to use a rainbow table.
To understand the first one, imagine a single password file that contains hundreds of usernames and passwords. Without a salt...
Convert a python dict to a string and back
...ngs like this. Being (relatively) human readable is a BIG plus much of the time.
– Tyler Eaves
Dec 28 '10 at 16:17
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How to verify if a file exists in a batch file?
... If no date is given, copies only those files whose
source time is newer than the destination time.
/H Copies hidden and system files also.
/E Copies directories and subdirectories, including empty ones.
Same as /S /E. May be used to modify /T.
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