大约有 43,000 项符合查询结果(耗时:0.0692秒) [XML]

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How can I be notified when an element is added to the page?

I want a function of my choosing to run when a DOM element is added to the page. This is in the context of a browser extension, so the webpage runs independently of me and I cannot modify its source. What are my options here? ...
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Comma in C/C++ macro

Say we have a macro like this 7 Answers 7 ...
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How to write a simple database engine [closed]

I am interested in learning how a database engine works (i.e. the internals of it). I know most of the basic data structures taught in CS (trees, hash tables, lists, etc.) as well as a pretty good understanding of compiler theory (and have implemented a very simple interpreter) but I don't understa...
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How can I find unused images and CSS styles in a website? [closed]

Is there a method (other than trial and error) I can use to find unused image files? How about CSS declarations for ID's and Classes that don't even exist in the site? ...
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Difference between class and type

Being new to Java, I'm confused between the concepts of class and type . For example, should the object "Hello World!" belong to the type String or class String ? Or maybe both? ...
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Why hasn't functional programming taken over yet?

I've read some texts about declarative/functional programming (languages), tried out Haskell as well as written one myself. From what I've seen, functional programming has several advantages over the classical imperative style: ...
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Parse large JSON file in Nodejs

I have a file which stores many JavaScript objects in JSON form and I need to read the file, create each of the objects, and do something with them (insert them into a db in my case). The JavaScript objects can be represented a format: ...
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What are the disadvantages to declaring Scala case classes?

If you're writing code that's using lots of beautiful, immutable data structures, case classes appear to be a godsend, giving you all of the following for free with just one keyword: ...
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What is the purpose of class methods?

I'm teaching myself Python and my most recent lesson was that Python is not Java , and so I've just spent a while turning all my Class methods into functions. ...
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What's the difference between TRUNCATE and DELETE in SQL

What's the difference between TRUNCATE and DELETE in SQL? 32 Answers 32 ...