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How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
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Just one warning on XPath and browsers, as this leads to lots of confusion: stackoverflow.com/questions/18241029/…
– Jens Erat
Mar 22 '14 at 6:52
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Read first N lines of a file in python
...rmance to be similar, maybe the first to be slightly faster. But the first one won't work if the file doesn't have at least N lines. You are best to measure the performance against some typical data you will be using it with.
– John La Rooy
Nov 20 '09 at 0:47
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What are best practices that you use when writing Objective-C and Cocoa? [closed]
...k about in a class? That is especially true in an environment like the iPhone.
3.5) In table cells, make every element (including the cell itself) opaque for performance. That means setting the appropriate background color in everything.
3.6) When using an NSURLConnection, as a rule you may well ...
Change Name of Import in Java, or import two classes with the same name
...t two classes with the same name and use both of them unqualified.
Import one class and use the fully qualified name for the other one, i.e.
import com.text.Formatter;
private Formatter textFormatter;
private com.json.Formatter jsonFormatter;
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Are there pronounceable names for common Haskell operators? [closed]
... (as it is the same as Control.Monad.ap)
$ (none, just as " " [whitespace])
. pipe to a . b: "b pipe-to a"
!! index
! index / strict a ! b: "a index b", foo !x: foo strict x
<|> or / alternative expr <|> term: "expr or term...
What's the difference between SCSS and Sass?
... in sass you always have to adjust the syntax
– fishbone
Nov 23 '16 at 6:49
16
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How can I link to a specific glibc version?
...ere and is an extension of Sun's symbol versioning scheme described here.
One option is to statically link your binary. This is probably the easiest option.
You could also build your binary in a chroot build environment, or using a glibc-new => glibc-old cross-compiler.
According to the http...
Mail multipart/alternative vs multipart/mixed
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Could someone comment on how to do this in PHP?
– RightHandedMonkey
Feb 27 '15 at 20:11
1
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Which is the preferred way to concatenate a string in Python?
... This is because it's readable and fast. They are also just as fast, which one you choose is a matter of taste, the latter one is the most common. Here are timings with the timeit module:
a = a + b:
0.11338996887207031
a += b:
0.11040496826171875
However, those who recommend having lists and appe...
map function for objects (instead of arrays)
...ginally) provided the second solution presented in this answer. The first one works and is not necessarily wrong, but as others have stated, I don't like to see map being used that way. When I see map, my mind is automatically thinking "immutable data structure"
– mjohnsoneng...