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Sort Go map values by keys
...ys, k)
}
sort.Strings(keys) # or sort.Ints(keys), sort.Sort(...), etc., per <K>
for _, k := range keys {
v := m[k]
f(k, v)
}
}
Then call it with the input map and a function (taking (k <K>, v <V>) as its input arguments) that is called over the ma...
Django. Override save for model
... nice with all pseudo-auto django tools (Example: ModelForm, contrib.admin etc).
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How to open files relative to home directory
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The shell (bash, zsh, etc) is responsible for wildcard expansion, so in your first example there's no shell, hence no expansion. Using the tilde to point to $HOME is a mere convention; indeed, if you look at the documentation for File.expand_path,...
Removing colors from output
...le numbers separated with semi-colons (for background color, bold, italic, etc...). This command worked for me: sed -r "s/[[:cntrl:]]\[([0-9]{1,3};)*[0-9]{1,3}m//g"
– saeedgnu
Jul 27 '18 at 3:22
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Are duplicate keys allowed in the definition of binary search trees?
... the count? What if the tree needs to rebalance that node to a lower level etc.?
– Andrew
Sep 16 at 1:01
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How to delete an object by id with entity framework
...ocks for different exception types, add more custom checks using if blocks etc.).
[I am using this code in a MVC .Net Core/.Net Core project with Entity Framework Core.]
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Call a “local” function within module.exports from another function in module.exports?
...ted, to refactor, e.g. rename the function, of find usage of the function, etc.
– Pierre Henry
Sep 21 '15 at 14:48
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Do you use source control for your database items? [closed]
...incremental migration scripts that are carefully crafted to be re-runnable etc so state tolerant.
– Shiv
Sep 26 '18 at 2:16
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NoSql Crash Course/Tutorial [closed]
...ave a solid understanding of why you would use it (from here, Wikipedia, etc). This could be due to the lack of concrete and uniform definition of what it is (more of a paradigm than concrete implementation), but I'm struggling to wrap my head around how I would go about designing a system that w...
$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'
... // log or don't log request,
// redirect to avoid resubmition on F5 etc
}
If your application needs to react on any data received through post request, use this:
if(!empty($_POST)) { // if received any post data
// process $_POST values,
// save data to DB,
// ...
}
if(!empty(...