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Xcode is not currently available from the Software Update server
...is that this corrects the path so that the command line tools which have already been installed by Xcode5 are now findable by xcode-select. After following this advice I was able to successfully install homebrew, which had been failing.
– Peter Gluck
Jun 16 '1...
Multi-Line Comments in Ruby?
...ormal and a more correct way to comment is to use #'s on each line. If you read the source of any ruby library, you will see that this is the way multi-line comments are done in almost all cases.
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How can I scan barcodes on iOS?
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Check out ZBar reads QR Code and ECN/ISBN codes and is available as under the LGPL v2 license.
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How do I list one filename per output line in Linux?
...now about -1 (-l yes (ell not one)) It shows in the man-page but I've been reading it as an ell the whole time :)
– slashmais
Oct 7 '10 at 22:49
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Why is std::map implemented as a red-black tree?
... the tree modification is O(1) or O(log n) because the main operation is already O(log n). even after all the slightly extra work that AVL trees do results in a more tightly balanced tree which leads to slightly faster lookups. so it is a perfectly valid tradeoff and does not make AVL trees inferio...
Git serve: I would like it that simple
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Currently using two aliases - serve and hub. Serve for read-only share and hub for read/write share:
[alias]
serve = !git daemon --base-path=. --export-all --reuseaddr --informative-errors --verbose
hub = !git daemon --base-path=. --export-all --enable=receive-pack --reusead...
ScrollIntoView() causing the whole page to move
...his worked. I failed to understand the use of block and it's values when I read it. Now that it solved a problem I know what it's doing
– Pavan
Jun 5 '19 at 12:29
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Ubuntu rails install fails on zlib
...t doesn't work ... something about zLib not found crap ...
So, I actually READ the README and find that I need to edit a file ...
[my ruby source directory]/ext/Setup
and UN-COMMENT the line with zLib in it ... by removing the "#" in the first column
Then I run the commands again ... included h...
App Inventor 2 Web客户端（Web）详细用法示例 · App Inventor 2 中文网
...il.policy import default
from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
HERE = os.path.dirname(os.path.abspath(__file__))
UPLOADS = os.path.join(HERE, 'uploads')
MAX_BYTES = 20 * 1024 * 1024
class Handler(BaseHTTPRequestHandler):
def reply(self, code, data):
body ...
Finding duplicate values in a SQL table
...u2.name AND u.email = u2.email AND u.id > u2.id
)
Much more easier to read and understand IMHO
Note: The only issue is that you have to execute the request until there is no rows deleted, since you delete only 1 of each duplicate each time
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