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How do I use CREATE OR REPLACE?
...fter updating the post for the third time, I'll reformulate this:
This does not work on tables :)
And yes, there is documentation on this syntax, and there are no REPLACE option for CREATE TABLE.
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Apply function to all elements of collection through LINQ [duplicate]
...}
(Where ThrowIfNull is an extension method on any reference type, which does the obvious thing.)
It'll be interesting to see if this is part of .NET 4.0. It goes against the functional style of LINQ, but there's no doubt that a lot of people find it useful.
Once you've got that, you can write t...
What is the difference between parseInt() and Number()?
...rrespond with any digit of the currently used base.
The Number constructor doesn't detect octals:
Number("010"); // 10
parseInt("010"); // 8, implicit octal
parseInt("010", 10); // 10, decimal radix used
But it can handle numbers in hexadecimal notation, just like parseInt:
Number("...
How to parse/format dates with LocalDateTime? (Java 8)
...ty brings a lot of confusion.
The key to understand date parsing is:
Why does Java have so many ways to parse a date
There are several systems to measure a time. For instance, the historical Japanese calendars were derived from the time ranges of the reign of the respective emperor or dynasty. T...
FFMPEG (libx264) “height not divisible by 2”
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The answer to the original question which does not want to scale the video is:
-vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"
Command:
ffmpeg -r 24 -i frame_%05d.jpg -vcodec libx264 -y -an video.mp4 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2"
Basically, .h264 needs even dimension...
When to use static classes in C# [duplicate]
...singleton wrapper of your class that allows for easy reuse - although this does make the requirement that your class is stateless. If it's not stateless, you can still create static wrapper methods that handle everything, while still giving you all the benefits in the long run. Finally, you could al...
Architecture for merging multiple user accounts together
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Twitter does not offer the users email. So on after their first authentication if the Twitter UserId doesn't exist, prompt him for an email and password. If the email and password exist, link the accounts. If it doesn't, store the em...
How does this milw0rm heap spraying exploit work?
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Any time I see memory that doesn't get addressed in an exploit discussion, my first thought is that the exploit is some sort of buffer overflow, in which case the memory is either causing the buffer to overflow or is being accessed once the buffer over...
Should URL be case sensitive?
...nd URLs" they should:
There may be URLs, or parts of URLs, where case doesn't matter, but
identifying these may not be easy. Users should always consider that
URLs are case-sensitive.
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What character encoding should I use for a HTTP header?
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so, what does that mean? Is "✰" valid/allowed?
– David Murdoch
Dec 10 '10 at 16:34
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