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Obtain Bundle Identifier programmatically
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(you can delete this comment) but I love the feeling of reading the answer then in the comment, see something like @Jonny s and Tim (although you can see this in another whole answer), it links to something else that still relevant and useful. Thanks for great community guys.
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How to launch html using Chrome at “--allow-file-access-from-files” mode?
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This answer is just spreading fear. The --allow-file-access-from-files option allows a file:// webpage access to other file:// resources, that's all. It does not leave your file system open.
– GetFree
Oct 23 ...
In Python, what is the difference between “.append()” and “+= []”?
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@jamesdlin yup! But it's easy to be mistaken unless you already know this. A little additional precision has never hurt anyone, right?
– Joe
Sep 29 '16 at 12:36
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What's the difference between SortedList and SortedDictionary?
...+----------+----------+---------+
* Insertion is O(1) for data that are already in sort order, so that each
element is added to the end of the list (assuming no resize is required).
From an implementation perspective:
+------------+---------------+----------+------------+------------+--------...
MySQL “incorrect string value” error when save unicode string in Django
..., I changed all the character sets on everything I could until I really re-read this answer: columns can have their own character sets, independent of the tables and the database. That's crazy and also was exactly my problem.
– markpasc
Jul 18 '11 at 17:43
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Remove redundant paths from $PATH variable
...$ pathappend /sbin
$ pathappend /bin
$ pathappend /usr/games
But, unless readability is the concern, at this point you're better off just doing:
$ export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
Would the above work in all shells known to man?
I would presum...
node.js hash string?
...ar fs = require('fs');
var md5sum = crypto.createHash('md5');
var s = fs.ReadStream(filename);
s.on('data', function(d) {
md5sum.update(d);
});
s.on('end', function() {
var d = md5sum.digest('hex');
console.log(d + ' ' + filename);
});
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How to keep environment variables when using sudo
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First you need to export HTTP_PROXY. Second, you need to read man sudo carefully, and pay attention to the -E flag. This works:
$ export HTTP_PROXY=foof
$ sudo -E bash -c 'echo $HTTP_PROXY'
Here is the quote from the man page:
-E, --preserve-env
Indicates to the se...
How do you produce a .d.ts “typings” definition file from an existing JavaScript library?
...e options, in roughly descending order of desirability.
Maybe It Exists Already
Always check DefinitelyTyped (https://github.com/DefinitelyTyped/DefinitelyTyped) first. This is a community repo full of literally thousands of .d.ts files and it's very likely the thing you're using is already there....
How to use a variable for a key in a JavaScript object literal?
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wonderful solution, but why you know so much, even reading the whole specification could not get point:(
– hugemeow
Apr 13 '18 at 22:41
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