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How to create a directory if it doesn't exist using Node.js?
...hrow err;
});
NOTE: You'll need to import the built-in fs module first.
Now here's a little more robust example that leverages native ES Modules (with flag enabled and .mjs extension), handles non-root paths, and accounts for full pathnames:
import fs from 'fs';
import path from 'path';
createD...
wkhtmltopdf: cannot connect to X server
...Extract it and move it to /usr/local/bin/
Rename it to wkhtmltopdf so that now you have an executable at /usr/local/bin/wkhtmltopdf
Set permissions: sudo chmod a+x /usr/local/bin/wkhtmltopdf
Install required support packages.
sudo apt-get install openssl build-essential xorg libssl-dev
Check to s...
How can I get the MAC and the IP address of a connected client in PHP?
I need to know the MAC and the IP address of the connect clients, how can I do this in PHP?
16 Answers
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廉价共享存储解决方案2-drbd+cman+gfs2 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...yes
Warning: Permanently added 'gfs_2,172.16.20.46' (RSA) to the list of known hosts.
root@gfs_2's password:
Now try logging into the machine, with "ssh 'root@gfs_2'", and check in:
.ssh/authorized_keys
to make sure we haven't added extra keys that you weren't expecting.
[root@gfs_2...
What is the difference between __init__ and __call__?
I want to know the difference between __init__ and __call__ methods.
13 Answers
...
A python class that acts like dict
..._(self,*arg,**kw):
super(CustomDictOne, self).__init__(*arg, **kw)
Now you can use the built-in functions, like dict.get() as self.get().
You do not need to wrap a hidden self._dict. Your class already is a dict.
...
Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c
... to tracking, for future pageviews
_gaq.push(['_trackPageview']); // now run the pageview that you 'missed'
}
Opt Out
With this approach, you'd allow the user to opt-out of tracking, which would mean you'd use a cookie to set the ga-disable-UA-XXXXXX-Y' property and a cookie to manage it...
C/C++ line number
...wer looks like?). Another point might be (at least it looks to me this way now) that you gave an answer 1 hour after an already correct answer was given, so you added no value.
– Felix Kling
May 17 '10 at 19:21
...
How to generate unique ID with node.js
...(); // -> '110ec58a-a0f2-4ac4-8393-c866d813b8d1'
** UPDATE 7.x
And now the above usage is deprecated as well, so use this package like this:
const { v1: uuidv1 } = require('uuid');
uuidv1(); // -> '6c84fb90-12c4-11e1-840d-7b25c5ee775a'
const { v4: uuidv4 } = require('uuid');
uuidv4()...
how to break the _.each function in underscore.js
...
right now (05/2013), there is neither a _.every() nor a _.all() method for arrays in underscore - so stick to the Array.every().
– pkyeck
May 9 '13 at 9:09
...