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How to make div background color transparent in CSS
...ackground-color: rgba(255, 0, 0, 0.4);
Or define a background image (1px by 1px) saved with the right alpha.
(To do so, use Gimp, Paint.Net or any other image software that allows you to do that.
Just create a new image, delete the background and put a semi-transparent color in it, then save it in...
Creating JS object with Object.create(null)?
...operties at all.
In other words: A javascript object inherits from Object by default, unless you explicitly create it with null as its prototype, like: Object.create(null).
{} would instead be equivalent to Object.create(Object.prototype).
In Chrome Devtool you can see that Object.create(null) ...
Can local storage ever be considered secure? [closed]
...y of cryptographic compromise. In other words, while you may have "crypto" by name, it will be well below the rigour one aspires to in practice.
All that being said, the actuarial assessment is not as trivial as "Javascript crypto is weak, do not use it". This is not an endorsement, strictly a cave...
NameError: name 'self' is not defined
... Although I think that the above is not very pretty (I come from ruby where things just work fine), the above actually works as a workaround. It's still awkward that python chose to make self unavailable in a parameter list.
– shevy
Jan 2 '18 at 11:30
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What's an elegant way to conditionally add a class to an HTML element in a view?
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@Anurag, check this out api.rubyonrails.org/classes/ActionController/…. Pretty neat stuff.
– maček
Apr 13 '10 at 5:22
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Is the creation of Java class files deterministic?
...es the same .class file twice, given the same .java file.
I could do this by tweaking all kinds of bytecode construction or by simply adding superfluous attributes to my method (which is allowed).
Given that the specification does not require the compiler to produce byte-for-byte identical class f...
Distributed sequence number generation?
...een sequence numbers and unique IDs that are (optionally) loosely sortable by a specific criteria (typically generation time). True sequence numbers imply knowledge of what all other workers have done, and as such require shared state. There is no easy way of doing this in a distributed, high-scale ...
Where is my .vimrc file?
... need to create it. In most installations I've used it hasn't been created by default.
You usually create it as ~/.vimrc.
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Is passing 'this' in a method call accepted practice in java
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@MichaelKjörling I think Juned is saying that, by moving the foo() method into the Baz class, there would be no need to pass this between the two classes. So, there is no need to add the extra complexity.
– JW.
Jul 3 '13 at 16:44
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Are 2^n and n*2^n in the same time complexity?
... The limit does not have to exist; the ratio only has to be bounded above by a constant for sufficiently large x. For example, 2+sin(x) is in O(1), but (2+sin(x))/1 does not approach a limit as x->infinity.
– user2357112 supports Monica
Feb 13 '14 at 21:33
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