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How can I convert NSDictionary to NSData and vice versa?
I am sending NSString and UIImage using bluetooth. I decided to store both in a NSDictionary and then convert the dictionary to NSData .
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Excluding directories in os.walk
I'm writing a script that descends into a directory tree (using os.walk()) and then visits each file matching a certain file extension. However, since some of the directory trees that my tool will be used on also contain sub directories that in turn contain a LOT of useless (for the purpose of thi...
Git says “Warning: Permanently added to the list of known hosts”
... running ssh from the command line add the following option to the command string:
-o LogLevel=quiet
For example, the following prints out the gcc version installed on machine.example.org (and no warning):
ssh -o UserKnownHostsFile=/dev/null \
-o StrictHostKeyChecking=no \
-o LogLevel=qu...
In jQuery how can I set “top,left” properties of an element with position values relative to the par
...0', position:'absolute'}); <-- bad. Apparently, if position values are strings, you must include the units, or it'll have no effect.
– Bob Stein
Jul 13 '16 at 4:18
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Get the distance between two geo points
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This is great and super helpful, but what is the String provider for in the constrructor?
– miss.serena
Oct 30 '13 at 19:11
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ImageConvertor 扩展：免费图像转换器，支持JPG/PNG/WEBP格式转换和图像处...
....edu/t/free-image-convertor-extension-to-convert-image-format-jpg-png-webp-and-much-much-more/39349
发布日期：2021年8月17日
最新版本：3.9
许可协议：免费开源
文档最后更新：2025年11月19日
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How to get current relative directory of your Makefile?
...y around this since $(MAKEFILE_LIST) with two makefiles gives you a single string "Makefile One Makefile Two, which cannot handle spaces
– mrosales
Jan 24 '15 at 17:05
2
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Bash script absolute path with OS X
... @FPereira Generating program code from unescaped user-supplied string is never a good idea. '' is not bullet-proof. It breaks if $0 contains a single quote, for instance. A very simple example: try your version in /tmp/'/test.sh, and call /tmp/'/test.sh by its full path.
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Using a .php file to generate a MySQL dump
...he PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a file, and this can be done by the command itself.
That external command will :
be a call to mysqldump, with the right parameters,
and redirect the output to a file.
For example :
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Difference between two lists
...omparer, if the values being compared are of base data types, such as int, string, decimal etc.
Otherwise the comparison will be made by object address, which is probably not what you want... In that case, make your custom objects implement IComparable (or implement a custom IEqualityComparer and p...