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Why is string concatenation faster than array join?
...sites
The V8 javascript engine (used in Google Chrome) uses this code to do string concatenation:
// ECMA-262, section 15.5.4.6
function StringConcat() {
if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) {
throw MakeTypeError("called_on_null_or_undefined", ["String.prototype...
Is recursion ever faster than looping?
...d. Recursion, by definition, is a mathematical concept, and has little to do with stack frames and assembly stuff.
– P Shved
Apr 16 '10 at 7:05
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Is ServiceLocator an anti-pattern?
... patterns as anti-patterns just because there are some situations where it does not fit, then YES it's an anti pattern. But with that reasoning all patterns would also be anti patterns.
Instead we have to look if there are valid usages of the patterns, and for Service Locator there are several use c...
How to access command line arguments of the caller inside a function?
...stack" a lot.
#!/bin/bash
function argv {
for a in ${BASH_ARGV[*]} ; do
echo -n "$a "
done
echo
}
function f {
echo f $1 $2 $3
echo -n f ; argv
}
function g {
echo g $1 $2 $3
echo -n g; argv
f
}
f boo bar baz
g goo gar gaz
Save in f.sh
$ ./f.sh arg0 arg1...
Generating a unique machine id
...ction that generates an id that is unique for a given machine running a Windows OS.
15 Answers
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How do I revert to a previous package in Anaconda?
If I do
2 Answers
2
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Google Chromecast sender error if Chromecast extension is not installed or using incognito
...ix this bug.
If you are a developer shipping with this library, you can't do anything about it according to Chromecast team. You can only inform users to ignore the errors. (I believe Chromecast team is not entirely correct as the library could, at the least, avoid requesting the extension scipt if...
Why is require_once so bad to use?
Everything I read about better PHP coding practices keeps saying don't use require_once because of speed.
14 Answers
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Positioning MKMapView to show multiple annotations at once
...e the map to fit all annotations onscreen at once, and I'm not sure how to do this.
24 Answers
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android get all contacts
...tView?(that i will can see all the contacts name in my phone in another windows)? thanks
– fsdf fsd
Sep 24 '12 at 9:50
4
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