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How can I tell if a DOM element is visible in the current viewport?
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Update: Time marches on and so have our browsers. This technique is no longer recommended and you should use Dan's solution if you do not need to support version of Internet Explorer before 7.
Original solution (now outdated):
This will check if ...
Compare equality between two objects in NUnit
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Override .Equals for your object and in the unit test you can then simply do this:
Assert.AreEqual(LeftObject, RightObject);
Of course, this might mean you just move all the individual comparisons to the .Equals method, but it would allow you to reuse tha...
Xcode can only refactor C and Objective-C code. How to rename swift class name in Xcode 6?
...hen I select Refactor -> Rename, it gives error Xcode can only refactor C and Objective-C code .
6 Answers
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How to mock localStorage in JavaScript unit tests?
...foreEach(function () {
var store = {};
spyOn(localStorage, 'getItem').andCallFake(function (key) {
return store[key];
});
spyOn(localStorage, 'setItem').andCallFake(function (key, value) {
return store[key] = value + '';
});
spyOn(localStorage, 'clear').andCallFake(function () {...
How to dynamically compose an OR query filter in Django?
...eries there is also the option to use built in Q() object's constants Q.OR and Q.AND together with the add() method like so:
list = [1, 2, 3]
# it gets a bit more complicated if we want to dynamically build
# OR queries with dynamic/unknown db field keys, let's say with a list
# of db fields that c...
Why would anyone use set instead of unordered_set?
C++0x is introducing unordered_set which is available in boost and many other places. What I understand is that unordered_set is hash table with O(1) lookup complexity. On the other hand, set is nothing but a tree with log(n) lookup complexity. Why on earth would anyone use set instead ...
Pros and Cons of SQLite and Shared Preferences [closed]
What is the good mechanism to store information among SQLite database and Shared Preferences?
5 Answers
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What is the difference between object keys with quotes and without quotes?
...e JSON data exchange format does require double quotes around identifiers (and does not allow single quotes).
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How to make/get a multi size .ico file? [closed]
...ources to confirm to yourself that this is a sensible list of resolutions and colour depths.
Make sure you use transparency round the outside of your image, and anti-aliased edges. You should see the grey checkerboard effect round the outside of your layers to indicate they are transparent
The 16x1...
MySQL Error 1093 - Can't specify target table for update in FROM clause
...eneral error classification. For a more specific answer about how to best handle the OP's exact query, please see other answers to this question
In MySQL, you can't modify the same table which you use in the SELECT part.
This behaviour is documented at:
http://dev.mysql.com/doc/refman/5.6/en/update...