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Node.js create folder or use existing
...a js-script that uses the catalog creation like this: mkdirpSync(path.join(__dirname, 'first', 'second', 'third', 'ololol', 'works')); But got this error: $ node 1.js fs.js:747 return binding.mkdir(pathModule._makeLong(path), ^ Error: EPERM, operation not permitted 'C:\' at Er...
Compute a confidence interval from sample data
...
import numpy as np
import scipy.stats
def mean_confidence_interval(data, confidence=0.95):
a = 1.0 * np.array(data)
n = len(a)
m, se = np.mean(a), scipy.stats.sem(a)
h = se * scipy.stats.t.ppf((1 + confidence) / 2., n-1)
return m, m-h, m+h
you can c...
Creating a new empty branch for a new project
... Archives are a wonderful thing.
– lucid_dreamer
Aug 13 '17 at 17:14
4
It's DANGEROU...
Merge 2 arrays of objects
..."lang", value: "German"}];
function mergeByProperty(arr1, arr2, prop) {
_.each(arr2, function(arr2obj) {
var arr1obj = _.find(arr1, function(arr1obj) {
return arr1obj[prop] === arr2obj[prop];
});
arr1obj ? _.extend(arr1obj, arr2obj) : arr1.push(arr2obj);
});
}
mergeByPropert...
How do I perform a Perl substitution on a string while keeping the original?
...
I was wondering if something like my $new = $_ for $old =~ s/foo/bar; would work?
– Benoit
Apr 30 '14 at 17:11
...
Difference between Property and Field in C# 3.0+
... in several ways. For example:
class Person: IPerson
{
private string _name;
public string FirstName
{
get
{
return _name ?? string.Empty;
}
set
{
if (value == null)
throw new System.ArgumentNullException("v...
Undefined symbols for architecture arm64
...m working with Xcode 7.2 and in Other Linker Flags -> Debug I see: -weak_framework CoreFoundation -weak_framework UIKit -weak_framework AVFoundation -weak_framework CoreMedia -weak-lSystem -ObjC ... here I added $(inherited) but it doesn't work
– Alessandra
...
How does “cat
...rmat to provide a string into stdin. See https://en.wikipedia.org/wiki/Here_document#Unix_shells for more details.
From man bash:
Here Documents
This type of redirection instructs the shell to read input from
the current source until a line
containing only word (with no trailing
bl...
What is the LD_PRELOAD trick?
...
If you set LD_PRELOAD to the path of a shared object, that file will be loaded before any other library (including the C runtime, libc.so). So to run ls with your special malloc() implementation, do this:
$ LD_PRELOAD=/path/to/my/malloc....
How can I call a custom Django manage.py command directly from a test driver?
...cannot decouple logic form command you can call it from any code using call_command method like this:
from django.core.management import call_command
call_command('my_command', 'foo', bar='baz')
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