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How to save a dictionary to a file?
I have problem with changing a dict value and saving the dict to a text file (the format must be same), I only want to change the member_phone field.
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What does O(log n) mean exactly?
...s the growth of the algorithm proportionally...and the same goes for, for example, quadratic time O(n2) etc..even algorithms, such as permutation generators, with O(n!) times, that grow by factorials.
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How to recursively find the latest modified file in a directory?
... keep everything in memory.
%T@ gives you the modification time like a unix timestamp, sort -n sorts numerically, tail -1 takes the last line (highest timestamp), cut -f2 -d" " cuts away the first field (the timestamp) from the output.
Edit: Just as -printf is probably GNU-only, ajreals usage of s...
Which version of PostgreSQL am I running?
I'm in a corporate environment (running Debian Linux) and didn't install it myself. I access the databases using Navicat or phpPgAdmin (if that helps). I also don't have shell access to the server running the database.
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Python json.loads shows ValueError: Extra data
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As you can see in the following example, json.loads (and json.load) does not decode multiple json object.
>>> json.loads('{}')
{}
>>> json.loads('{}{}') # == json.loads(json.dumps({}) + json.dumps({}))
Traceback (most recent call last):
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Default parameters with C++ constructors [closed]
...efault parameters, or should I use separate overloaded constructors? For example:
12 Answers
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Parser Error Message: Could not load type 'TestMvcApplication.MvcApplication'
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rmagick gem install “Can't find Magick-config”
...uilding native Ruby gems, sometimes you'll get an error containing "ruby extconf.rb". This is often caused by missing development libraries for the gem you're installing, or even Ruby itself.
Do you have apt installed on your machine? If not, I'd recommend installing it, because it's a quick and e...
In Rails - is there a rails method to convert newlines to ?
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Yes, rails has simple_format which does exactly what you are looking for, and slightly better since it also adds paragraph tags. See
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-simple_format
Example:
simple_format(mystring)
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