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Interactive search/replace regex in Vim?
...earning vim commands is a little bit like playing Nethack. You never know what wonders a single character is going to hold.
– Mark Biek
Feb 3 '09 at 3:06
22
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Python None comparison: should I use “is” or ==?
...hough I can't think of any off the top of my head). You just need to know what you're doing.
– mgilson
Jan 9 '13 at 22:24
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show 6 more com...
Git diff to show only lines that have been modified
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What you want is a diff with 0 lines of context. You can generate this with:
git diff --unified=0
or
git diff -U0
You can also set this as a config option for that repository:
git config diff.context 0
To have it set...
How to check that an element is in a std::set?
...ly just do a this->find(key) != this->end() internally, but consider what you do when the key is indeed present; in most cases you'll then want to get the element and do something with it. This means you'd have to do a second find(), which is inefficient. It's better to use find directly, so y...
Best way to merge two maps and sum the values of same key?
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Scalaz has the concept of a Semigroup which captures what you want to do here, and leads to arguably the shortest/cleanest solution:
scala> import scalaz._
import scalaz._
scala> import Scalaz._
import Scalaz._
scala> val map1 = Map(1 -> 9 , 2 -> 20)
map1: sca...
How do I close all open tabs at once?
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:tabo is exactly what I was looking for. I'd upvote you 30 times if I could. :)
– Justin Force
Jan 28 '12 at 19:32
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When should I use Arrow functions in ECMAScript 6?
.... A developer can always look up the next-higher function statement to see what the thisObject is.
Why always use regular functions on the global scope or module scope?
To indicate a function that should not access the thisObject.
The window object (global scope) is best addressed explicitly.
Ma...
Calling a Fragment method from a parent Activity
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@Fattie , what if I don't have fragment tag?
– Vaclovas Rekašius Jr.
Aug 25 '17 at 0:38
5
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...n explicitly suggests that SQL_CALC_FOUND_ROWS will be faster, I wonder in what situations (if any) it actually is faster!
– svidgen
Jan 9 '13 at 20:56
13
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How to write logs in text file when using java.util.logging.Logger
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Could you please suggest me what to do if i want to keep all the logs. Actually from this approach my text file is being replaced if i run my application 2nd time?
– Pankaj
Apr 2 '13 at 9:03
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