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Browsers' default CSS for HTML elements
... monospace }
pre { white-space: pre }
button, textarea,
input, select { display: inline-block }
big { font-size: 1.17em }
small, sub, sup { font-size: .83em }
sub { vertical-align: sub }
sup { vertical-align: super }
table { border-spacing:...
Simple explanation of MapReduce?
...e reduced to a scalar value.
So if you think of it like a SQL statement
SELECT SUM(salary)
FROM employees
WHERE salary > 1000
GROUP by deptname
We can use map to get our subset of employees with salary > 1000
which map emits to the barrier into group size buckets.
Reduce will sum each of...
Use of var keyword in C#
...oing things like var customers = whatever; var query = from c in customers select stuff it doesn't matter what the exact type of 'customers' is. It's obvious how you can use it, and that's enough. And if the actual type is cumbersome, it's worthwhile to suppress it.
– Joren
...
What's the equivalent of use-commit-times for git?
... file .mtimes in git repository, updates them accordingly on commits (jsut selectively the mtimes of staged files) and applies them on checkout. It works even with cygwin/mingw versions of git (but you may need to copy some files from standard cygwin into git's folder)
The solution consists of 3 fi...
What is the smallest possible valid PDF?
... This will not work, you need to define a font resource and select it inside the page content for the text to show up.
– yms
Aug 21 '15 at 20:36
...
Local Storage vs Cookies
...
Cleard by JS or by Clear Browsing Data of the browser.
You can select when the data must be sent to the server.
The capacity is 5MB.
Data is stored indefinitely, and must be a string.
Only have one type.
share
...
What is the performance cost of having a virtual method in a C++ class?
..."type(-identifying) number" in the objects and using a switch statement to select the type-specific code. This avoids function call overhead completely - just doing a local jump. There is a potential cost to maintainability, recompilation dependencies etc through the forced localisation (in the sw...
用户界面（UI）组件 · App Inventor 2 中文网
...控件颜色，比如FloatingButton、TextField、Cursor、ProgressBar、Selection、Links等具体交互性的颜色。
另外附上Android Material设计图的Color说明：
主题颜色
这是用作 Android 主题部分的主要颜色，包括“屏幕”标题栏颜色...
Foreign Key to multiple tables
...ulkon I know this is an old question but the query would be something like SELECT t.Subject AS ticketSubject, CASE WHEN u.Name IS NOT NULL THEN u.Name ELSE g.Name END AS ticketOwnerName FROM Ticket t INNER JOIN Party p ON t.Owner=p.PartyId LEFT OUTER JOIN User u ON u.ID=p.PartyId LEFT OUTER JOIN Gro...
Switch statement fallthrough in C#?
...# had not yet added any "soft" keywords (like 'yield', 'var', 'from', and 'select'), so they had three real options: 1) make 'fallthrough' a hard keyword (you cant use it as a variable name), 2) write code necessary to support such an soft keyword, 3) use already reserved keywords. #1 was a big issu...