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How long is the SHA256 hash?
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A sha256 is 256 bits long -- as its name indicates.
Since sha256 returns a hexadecimal representation, 4 bits are enough to encode each character (instead of 8, like for ASCII), so 256 bits would represent 64 hex characters, therefore you ne...
Automatically open Chrome developer tools when new tab/new window is opened
...e HTML5 application which opens in a new window by clicking a link. I'm a bit tired of pressing Shift + I each time I want to logging network communication to launch Developer tools because I need it always. I was not able to find an option to keep Developer Tools always enabled on startup.
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Play/pause HTML 5 video using JQuery
...ry function but a function of the DOM element. You therefore need to call it upon the DOM element. You give an example of how to do this with the native DOM functions. The jQuery equivalent -- if you wanted to do this to fit in with an existing jQuery selection -- would be $('#videoId').get(0).pl...
Find out if ListView is scrolled to the bottom?
...out if my ListView is scrolled to the bottom? By that I mean that the last item is fully visible.
24 Answers
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Difference between
... read a Double because foo3 could be pointing at a List<Integer>.
Writing - Given the above possible assignments, what type of object could you add to List foo3 that would be legal for all the above possible ArrayList assignments:
You can't add an Integer because foo3 could be pointing at a...
Why use the 'ref' keyword when passing an object?
...utable object, e.g. a string. You cannot change the value of a string once it has been created. But by using a ref, you could create a function that changes the string for another one that has a different value.
It is not a good idea to use ref unless it is needed. Using ref gives the method freedom...
SET NAMES utf8 in MySQL?
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It is needed whenever you want to send data to the server having characters that cannot be represented in pure ASCII, like 'ñ' or 'ö'.
That if the MySQL instance is not configured to expect UTF-8 encoding by default from c...
How can I convert spaces to tabs in Vim or Linux?
...ver several questions on Stack Overflow for how to convert spaces to tabs without finding what I need. There seem to be more questions about how to convert tabs to spaces, but I'm trying to do the opposite.
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Organizing a multiple-file Go project [closed]
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I would recommend reviewing this page on How to Write Go Code
It documents both how to structure your project in a go build friendly way, and also how to write tests. Tests do not need to be a cmd using the main package. They can simply be TestX named functions as part of e...
What is the Difference Between read() and recv() , and Between send() and write()?
... the difference between read() and recv() , and between send() and write() in socket programming in terms of performances, speed and other behaviors?
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