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Fundamental difference between Hashing and Encryption algorithms
I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about:
1...
Changing default shell in Linux [closed]
...tailed command is chsh -s /bin/bash.
It will prompt you to enter your password.
Your default login shell is /bin/bash now. You must log out and log back in to see this change.
The following is quoted from man page:
The chsh command changes the user login shell. This determines the
name
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Return a value from AsyncTask in Android [duplicate]
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It not work, e.g. myTask mTask = new myTask(); mTask.execute(); will not return the myHandledValueType.
– Cheung
Aug 30 '13 at 5:19
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Node.js or Erlang
...lang a try. Even though it will be a steeper learning curve, you will get more out of it since you will be learning a functional programming language. Also, since Erlang is specifically designed to create reliable, highly concurrent systems, you will learn plenty about creating highly scalable servi...
How to extract URL parameters from a URL with Ruby or Rails?
...to turn any given URL string into a HASH?
You can try http://www.ruby-doc.org/stdlib/libdoc/cgi/rdoc/classes/CGI.html#M000075
require 'cgi'
CGI::parse('param1=value1&param2=value2&param3=value3')
returns
{"param1"=>["value1"], "param2"=>["value2"], "param3"=>["value3"]}
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How to avoid 'cannot read property of undefined' errors?
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Update:
If you use JavaScript according to ECMAScript 2020 or later, see optional chaining.
TypeScript has added support for optional chaining in version 3.7.
// use it like this
obj?.a?.lot?.of?.properties
Solution for JavaScript before ECMASCript 202...
Should I use SVN or Git? [closed]
I am starting a new distributed project. Should I use SVN or Git, and why?
21 Answers
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How can I delete a newline if it is the last character in a file?
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perl -pe 'chomp if eof' filename >filename2
or, to edit the file in place:
perl -pi -e 'chomp if eof' filename
[Editor's note: -pi -e was originally -pie, but, as noted by several commenters and explained by @hvd, the latter doesn't work.]
This was described as a '...
How do I fix "The expression of type List needs unchecked conversion…'?
...>, then cast each element of the sf.getEntries() result to SyndEntry before adding it to your new list. Collections.checkedList does not do this checking for you—although it would have been possible to implement it to do so.
By doing your own cast up front, you're "complying with the warranty...
Difference between GeoJSON and TopoJSON
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If you care about file size or topology, then use TopoJSON. If you don’t care about either, then use GeoJSON for simplicity’s sake.
The primary advantage of TopoJSON is size. By eliminating redundancy and using a more efficent fixed-precision integ...