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Fundamental difference between Hashing and Encryption algorithms
...tions
They provide a mapping between an arbitrary length input, and a (usually) fixed length (or smaller length) output. It can be anything from a simple crc32, to a full blown cryptographic hash function such as MD5 or SHA1/2/256/512. The point is that there's a one-way mapping going on. It's a...
What is sys.maxint in Python 3?
...integer, and I've read to use "sys.maxint" . However, in Python 3 when I call it I get:
6 Answers
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Explanation of JSONB introduced by PostgreSQL
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First, hstore is a contrib module, which only allows you to store key => value pairs, where keys and values can only be texts (however values can be sql NULLs too).
Both json & jsonb allows you to store a valid JSON value (defined in its spec).
F.ex. these are v...
Remove border from IFrame
...ersson caniuse.com/#feat=iframe-seamless states that it isn't supported at all.
– Tim Büthe
Jun 19 '15 at 11:19
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How to reset / remove chrome's input highlighting / focus border? [duplicate]
...able to remove it using
outline: none;
but keep in mind this is potentially bad for usability: It will be hard to tell whether an element is focused, which can suck when you walk through all a form's elements using the Tab key - you should reflect somehow when an element is focused.
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How can I monitor the thread count of a process on linux?
..., simply use watch:
$ watch ps -o thcount <pid>
To get the sum of all threads running in the system:
$ ps -eo nlwp | tail -n +2 | awk '{ num_threads += $1 } END { print num_threads }'
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Full examples of using pySerial package [closed]
...is code. I'm not certain on this but I believe the serial port is automatically opened when it is explicitly defined as you have done with ser. After commenting out the ser.open() line it worked.
– user3817250
Sep 23 '14 at 14:31
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Get class name using jQuery
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this.id // for IDs
Both are standard DOM methods and well supported in all browsers.
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Reduce git repository size
... do I reduce my repo size...it's about 10 MB, but the thing is Heroku only allows 50 MB and I'm no where near finished developing my app.
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How to see the changes in a Git commit?
...that can be recursively dereferenced to a commit object. The following are all commit-ishes: a commit object, a tag object that points to a commit object, a tag object that points to a tag object that points to a commit object, etc.
See gitrevision "SPECIFYING REVISIONS" to reference a commit-ish....