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querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...r to browser (and from version to version). I'd assume that selector based ones were more expensive (but not in a way that will ever likely to be significant)
– Quentin
Jan 17 '13 at 11:18
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How to check if one DateTime is greater than the other in C#
...ndDate . I want to make sure StartDate is before EndDate . How is this done in C#?
11 Answers
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Markdown: continue numbered list
...bered block. If you leave 2 blank lines, it restarts numbering; leave only one and it continues.
– Rhubarb
Aug 21 '19 at 10:28
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show 9 more...
Why are these constructs using pre and post-increment undefined behavior?
...lem, there is no "should" involved. If the undefined behavior changes when one of the involved variables is declared volatile, that doesn't prove or change anything. It is undefined; you cannot reason about the behavior.
Your most interesting-looking example, the one with
u = (u++);
is a text-bo...
mkdir's “-p” option
So this doesn't seem like a terribly complicated question I have, but it's one I can't find the answer to. I'm confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this:
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Java Persistence / JPA: @Column vs @Basic
...in JPA? Can they be used together? Should they be used together? Or does one of them suffice?
4 Answers
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How can I use functional programming in the real world? [closed]
... I'm waiting for it to get it in print. It seems it will be one of the better books around. I bet it will server the people interested in Haskell better than Practical Ocaml does for Ocaml
– Friedrich
Oct 13 '08 at 10:08
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In which scenario do I use a particular STL container?
... section on the STL and its containers. Now I do understand each and every one of them have their own specific properties, and I'm close to memorizing all of them... But what I do not yet grasp is in which scenario each of them is used.
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How to Copy Contents of One Canvas to Another Canvas Locally
I'd like to copy ALL contents of one canvas and transfer them to another all on the client-side. I would think that I would use the canvas.toDataURL() and context.drawImage() method to implement this but I am running into a few issues.
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An App ID with Identifier '' is not available. Please enter a different string
...fault in Safari. Didn't see that there are more entries... Because all the ones created by Xcode start with XC, they appear at the bottom...
– endavid
Sep 15 '19 at 10:43
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