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How to remove old Docker containers
...e unused instances of just one type of object.
Introduced in commit 913e5cb, only for Docker 1.13+.
docker container prune
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Using git to get just the latest revision
...
Since commit 82fba2b in git 1.9 these limitations no longer exist.
– niutech
Mar 5 '14 at 13:26
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Difference between \n and \r?
...ones explained elsewhere on the thread... every other OS has a single char a5 line-end (99%+ of them `\n').
– Alex Martelli
Dec 4 '14 at 4:56
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Inputting a default image in case the src attribute of an html is not valid?
...>
<img src="https://cdn.sstatic.net/Img/unified/sprites.svg?v=e5e58ae7df45" alt="Stack Overflow logo and icons and such">
</object>
</p>
</body>
</html>
Since the first image doesn't exist, the fallback (the sprites used on this web site*)...
MongoDB/Mongoose querying at a specific date?
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options = {}
# eg. api/v1/meals?date=Tue+Jan+13+2015+00%3A00%3A00+GMT%2B0100+(CET)
if req.query.date?
date = new Date req.query.date
date.setHours 0, 0, 0, 0
endDate = new Date date
endDate.setHours 23, 59, 59, 59
options.date =
$lt: endDate
$gte: date
Meal....
initializing a Guava ImmutableMap
... should initialise a map with more than 5 tuples.
– i2B
Jan 24 at 11:30
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Url decode UTF-8 in Python
... So why is the + character left in the string? I thought that %2B was the + character and + literals were removed during decoding?
– AlexLordThorsen
Oct 2 '14 at 22:29
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git undo all uncommitted or unsaved changes
...: WIP on rails-4: 66c8407 remove forem residuals
stash@{1}: WIP on master: 2b8f269 Map qualifications
stash@{2}: WIP on master: 27a7e54 Use non-dynamic finders
stash@{3}: WIP on blogit: c9bd270 some changes
Each stash is named after the previous commit messsage.
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What is the best way to remove accents (normalize) in a Python unicode string?
...o:
>>> strip_accents(u"A \u00c0 \u0394 \u038E")
u'A A \u0394 \u03a5'
>>>
The character category "Mn" stands for Nonspacing_Mark, which is similar to unicodedata.combining in MiniQuark's answer (I didn't think of unicodedata.combining, but it is probably the better solution, bec...
How to know if an object has an attribute in Python
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@e5: you have a fair point in this case, but in many cases EAFP is the only correct option. For example, if you check the existence of a file and then open it, expecting that it will definitely exist, your code is incorrect: t...