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Map and Reduce in .NET
...of reducing the intermediate results into the final list of results.
var wordOccurrences = words
.GroupBy(w => w)
.Select(intermediate => new
{
Word = intermediate.Key,
Frequency = intermediate.Sum(w =>...
PHP 5: const vs static
...
Yes, good point, I neglected to mention that the self keyword can be used if referencing from within the class itself. The examples I provided above were performed outside the class definition, in which case the class name must be used.
– Matt Huggins
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SQL to determine minimum sequential days of access?
...on tablename(UserID, CreationDate)
Edited: Turns out Offset is a reserved word, so I used TheOffset instead.
Edited: The suggestion to use COUNT(*) is very valid - I should've done that in the first place but wasn't really thinking. Previously it was using datediff(day, min(CreationDate), max(Crea...
How to disassemble one single function using objdump?
... displays nothing, try another object! Can also specify file/object as bareword argument; e.g., gdb -batch -ex 'disassemble main' /bin/ls
– hoc_age
Oct 17 '14 at 15:01
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and
...sts
(?=.*\W]) // use positive look ahead to see if at least one non-word character exists
And I agree with SilentGhost, \W might be a bit broad. I'd replace it with a character set like this: [-+_!@#$%^&*.,?] (feel free to add more of course!)
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Do I have to guard against SQL injection if I used a dropdown?
...
An image says more than a thousand words.
– davidkonrad
Mar 22 '14 at 6:08
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Merging 2 branches together in GIT
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Say the file in A contained the word "hello", the A amended it to "HELLO" and B amended it to "Hello world". What would be the outcome of merging these files?
– dotty
Aug 4 '10 at 10:23
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What does Bump Version stand for?
...out only changing a version number in a config file for example? In other words, are there any technical details about how this term can be used?
– Alexey
May 13 '14 at 9:01
3
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What's the difference between “static” and “static inline” function?
...er may ignore it, and most compilers will try to "inline" even when the keyword is not used, as part of the optimizations, where its possible.
for example:
static int Inc(int i) {return i+1};
.... // some code
int i;
.... // some more code
for (i=0; i<999999; i = Inc(i)) {/*do something here*/}...
Assign variable in if condition statement, good practice or not? [closed]
...re testing for fail/success of a function that returns a boolean. In other words, while if (resultArr = myNeedle.exec(myHaystack)) {...} works, if ((resultArr = myNeedle.exec(myHaystack)) === true) {...} does not because the assignment to resultArr is always truthy even when the function result is ...