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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...
婚庆O2O：领跑的企业也就只走到B轮 - 资讯 - 清泛网 - 专注C/C++及内核技术
...粤网婚嫁频道开通。而像杭州19楼、安徽万家热线这样的社区型网站顺势推出的婚庆业务搞得也是风生水起。
新兴的婚庆O2O平台们，如婚礼记，到喜啦，喜事网、591结婚网、新娘街、易结网也带着风投和上市梦想迅速「攻城略...
MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...让大众注意到Web MVC，不过真正让Web MVC流行起来的却是Ruby社区的Rails，其大致流程如下图所示：
Web MVC
图解：一个典型的Web MVC流程
Controller截获用户发出的请求
Controller调用Model完成状态的读写操作
Controller把数据传递给Vi...
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...