大约有 3,346 项符合查询结果（耗时：0.0241秒） [XML]
Why would I ever use push_back instead of emplace_back?
...s just a stack object. This leads to undefined behavior.
This is not just invented code. This was a real production bug I encountered. The code was std::vector<T *>, but it owned the contents. As part of the migration to C++11, I correctly changed T * to std::unique_ptr<T> to indicate t...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
...he 1960s, it is called "raising" an exception in the seminal articles that invented the modern form of exception handling, it is called "raising" an exception in Lisps and Smalltalks, which were some of the main inspirations for Ruby, and it is called "raising" an exception or "raising" an interrupt...
What exactly does Perl's “bless” do?
...an. Perl does not have such flexibility(at least not built in, you have to invent it or get it from other modules), and in turn your runtime expressiveness is hindered. Calling it "bless" doesn't do it much favors neither.
What we want to do:
Something like this, but have binding to the prototype ...
Difference between author and committer in Git?
...n mind that the previous distributed version control system before git was invented was sending ~~Linus~~ the project maintainer emails with patches to apply. This functionality is there so ~~Linus~~ the maintainer can apply your patch while still crediting you for it in an 'official' way, rather th...
In what cases do I use malloc and/or new?
...w though in fixing all the issues we identified so far we've practically reinvented the default new operator. If you're going to use malloc and placement new then you might as well just use new to begin with!
share
...
How to get function parameter names/values dynamically?
...rns ['a','d']
getParamNames(function (){}) // returns []
Edit:
With the invent of ES6 this function can be tripped up by default parameters. Here is a quick hack which should work in most cases:
var STRIP_COMMENTS = /(\/\/.*$)|(\/\*[\s\S]*?\*\/)|(\s*=[^,\)]*(('(?:\\'|[^'\r\n])*')|("(?:\\"|[^"\r...
How to detect when cancel is clicked on file input?
...dup a change event on the JavaScript side, yet fundamentally impossible to invent my own "done" event. Even my solution is really just heuristics, if offer no guarantees on the state of the browser.
As it stands, this API is fundamentally unusable for mobile devices, and I think a relatively simple...
Why shouldn't I use “Hungarian Notation”?
...an int variable will crash the system. Hungarian notation was specifically invented in the sixties for use in BCPL, a pretty low-level language which didn't do any type checking at all. I dont think any language in general use today have this problem, but the notation lived on as a kind of cargo cul...
What is the advantage of using REST instead of non-REST HTTP?
...-1, REST is something very specific - as described by Roy Fielding when he invented it. See this answer. particularly: "The client needs only know the initial URI, and subsequently chooses from server-supplied choices to navigate or perform actions.". Basically, if any part of an API documents endpo...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...
No, Hibernate invented this. I don't like it since it exposes part of the implementation to the OO model. I'd prefer a @Parent or @Child annotation instead of "XtoY" to state what the connection means (rather than how it is implemented)
...