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Can Python test the membership of multiple values in a list?
...but they won't work for as many different kinds of inputs. As Kabie points out, you can solve this problem using sets...
>>> set(['a', 'b']).issubset(set(['a', 'b', 'foo', 'bar']))
True
>>> {'a', 'b'} <= {'a', 'b', 'foo', 'bar'}
True
...sometimes:
>>> {'a', ['b']} &...
How to check that an element is in a std::set?
...t's only relevant for multiset and multimap I thought? Still good to point out though :)
– Pieter
Nov 9 '09 at 15:54
84
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Clear form field after select for jQuery UI Autocomplete
...lection, and you additionally need $(this).val('') if you want to clear it out.
– mynameistechno
Dec 16 '11 at 21:34
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show 2 more comments
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git push says “everything up-to-date” even though I have local changes
...modified files.
$ git log -1
# note the SHA-1 of latest commit
$ git checkout master
# reset your branch head to your previously detached commit
$ git reset --hard <commit-id>
As mentioned in the git checkout man page (emphasis mine):
It is sometimes useful to be able to checkout a co...
Remove border from buttons
...r, the gray border from the standard buttons still remains, showing on the outside of my black button images.
9 Answers
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What is the use of the JavaScript 'bind' method?
....bind(myButton);
boundClick(); // bound, 'this' is myButton
Which prints out:
OK clicked
undefined clicked
OK clicked
You can also add extra parameters after the 1st (this) parameter and bind will pass in those values to the original function. Any additional parameters you later pass to the bou...
How can I shuffle an array? [duplicate]
... we can also implement this function as a prototype method for arrays, without having it show up in loops such as for (i in arr). The following will allow you to call arr.shuffle() to shuffle the array arr:
Object.defineProperty(Array.prototype, 'shuffle', {
value: function() {
for (let...
When should I use the HashSet type?
...
The important thing about HashSet<T> is right there in the name: it's a set. The only things you can do with a single set is to establish what its members are, and to check whether an item is a member.
Asking if you can retrieve a single ...
How do I use shell variables in an awk script?
...ys to pass external shell variables to an awk script, but I'm confused about ' and " .
7 Answers
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Is using 'var' to declare variables optional? [duplicate]
...ry pleasant language. Don't hate it. Just know the pitfalls and leave them out of your code.
– Stefano Borini
Mar 21 '10 at 1:25
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