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Cleanest way to toggle a boolean variable in Java?
...eanest because they show the intent in the method signature, are easier to read compared to the ! operator, and can be easily debugged.
Usage
boolean bTrue = true
boolean bFalse = false
boolean bNull = null
toggle(bTrue) // == false
toggle(bFalse) // == true
toggle(bNull) // == true
Of course, ...
Count the number occurrences of a character in a string
...er in a string. But if you need to count more characters you would have to read the whole string as many times as characters you want to count.
A better approach for this job would be:
from collections import defaultdict
text = 'Mary had a little lamb'
chars = defaultdict(int)
for char in text:
...
Can you have if-then-else logic in SQL? [duplicate]
...mmer and not very into dbs, I think this solution looks the most simple to read and understand :) However, I get multiple result sets since it does more than 1 select. Is there any way to only return 1 resut set? Also, does anyone back up @mson on this being a bad idea?
– Cotte...
What is the Difference Between Mercurial and Git?
... what you should expect them to be (that is, if I modify a changeset you already have, your client will see it as new if you pull from me). So Mercurial has a bias towards non-destructive commands.
As for light-weight branches, then Mercurial has supported repositories with multiple branches since....
How to check if a variable is not null?
...
Have a read at this post: http://enterprisejquery.com/2010/10/how-good-c-habits-can-encourage-bad-javascript-habits-part-2/
It has some nice tips for JavaScript in general but one thing it does mention is that you should check for ...
Difference between global and device functions
... host(CPU) function to call a device(GPU) function, then 'global' is used. Read this: "https://code.google.com/p/stanford-cs193g-sp2010/wiki/TutorialGlobalFunctions"
And when we want a device(GPU) function (rather kernel) to call another kernel function we use 'device'. Read this "https://code.goog...
Best practice to call ConfigureAwait for all server-side code
...ASP.NET team has the best information on using async on ASP.NET.
I had read that it is more performant since it doesn't have to switch thread contexts back to the original thread context.
This is true with UI applications, where there is only one UI thread that you have to "sync" back to.
In ...
What is the difference between printf() and puts() in C?
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How did you read the assembly code after compiling the C code?
– Koray Tugay
Mar 16 '15 at 18:15
3
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Print newline in PHP in single quotes
... you can not express a new-line character in single quotes. And that's it. Reading the manual could have helped :)
– hakre
May 21 '13 at 9:35
...
In vim, how do I go back to where I was before a search?
...
You really should read :help jumplist it explains all of this very well.
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