terminology

What is sharding and why is it important?

由 谁都会走 提交于 2019-11-27 04:55:24
问题 I think I understand sharding to be putting back your sliced up data (the shards) into an easy to deal with aggregate that makes sense in the context. Is this correct? Update : I guess I am struggling here. In my opinion the application tier should have no business determining where data should be stored. At best it should be shard client of some sort. Both responses answered the what but not the why is it important aspect. What implications does it have outside of the obvious performance

Is this a well known design pattern? What is its name?

由 只谈情不闲聊 提交于 2019-11-27 04:36:19
问题 I have seen this often in code, but when I speak of it I don't know the name for such 'pattern' I have a method with 2 arguments that calls an overloaded method that has 3 arguments and intentionally sets the 3rd one to empty string. public void DoWork(string name, string phoneNumber) { DoWork(name, phoneNumber, string.Empty) } private void DoWork(string name, string phoneNumber, string emailAddress) { //do the work } The reason I'm doing this is to not duplicate code, and to allow existing

In C++, what is the difference between a method and a function [duplicate]

由 风格不统一 提交于 2019-11-27 04:23:06
问题 Possible Duplicate: What is the difference between a method and a function I'm trying to get my terminology correct. What is the difference between a method and a function, in regards to C++ specifically. Is it that a method returns nothing and just preforms operations on its class; while a function has a return value? 回答1: As far as the C++ standard is concerned, there is no such thing as a "method". This terminology is used in other OO languages (e.g. Java) to refer to member functions of a

Is Javascript a Functional Programming Language?

由 我怕爱的太早我们不能终老 提交于 2019-11-27 04:08:59
问题 Just because functions are first class objects, there are closures, and higher order functions, does Javascript deserve to be called a Functional Programming language? The main thing I think it lacks is Pure Functions, and it doesn't 'feel' like other functional languages, like lisp (although thats not really a good reason for it not to be a functional langauge...) 回答1: Repeating my own answer to a similar question, There's no accepted definition of functional programming language. If you

What is a jQuery Object?

由 点点圈 提交于 2019-11-27 04:04:49
问题 JavaScript kind of redefines what an Array means because an array is an object with a .length property and methods like .slice() and .join() . jQuery defines a jQuery object as "Array like", because it has a length property but it doesn't have certain array methods like join() . If I were to define the jQuery object as an object, and forget about mentioning anything to do with an array, how would I define it? What properties does it have besides length? I guess all the methods are what you

Difference between a deprecated and a legacy API?

由 僤鯓⒐⒋嵵緔 提交于 2019-11-27 03:50:19
I was studying the legacy API's in the Java's Collection Framework and I learnt that classes such as Vector and HashTable have been superseded by ArrayList and HashMap . However still they are NOT deprecated, and deemed as legacy when essentially, deprecation is applied to software features that are superseded and should be avoided, so, I am not sure when is a API deemed legacy and when it is deprecated. From the official Sun glossary: deprecation : Refers to a class, interface, constructor, method or field that is no longer recommended, and may cease to exist in a future version. From the how

What is shotgun/voodoo programming?

由 北城以北 提交于 2019-11-27 03:48:19
问题 I saw the term in in this question. I think I have an idea, but not sure if this a localized term or if wide spread meaning for the term. Shotgun would implie that he might be (over) using a tool or technique much bulkier or clunkier than a simpler, more elegant solution can be found. And voodoo? 回答1: Shotgun implies blindly scattering a million little bits of junk all over a problem, like the pellets in a shotgun shell; hopefully one little bit hits the mark. It's trying stuff until

How do you read !important in CSS?

由 血红的双手。 提交于 2019-11-27 03:34:08
How is the CSS attribute property !important read? Is it really important , exclamation mark important , ...? Answer: From the answers below, it seems to be read simply important , or bang important . Jason Gennaro an "!important" declaration (the delimiter token "!" and keyword "important" follow the declaration) takes precedence over a normal declaration. http://www.w3.org/TR/CSS2/cascade.html#important-rules Basically, where two style rules are the same... it gives the one marked !important greater importance and will apply those styles. Example div{ opacity:0 !important; } div.jason{

What is the official name of C++'s arrow (->) operator?

由 旧巷老猫 提交于 2019-11-27 03:01:44
问题 I always call it the " arrow operator ", but I'm sure it has an official name. I quickly skimmed the C++ standard and didn't see it mentioned by name. 回答1: The C++ standard just calls it "arrow" (§5.2.5). 回答2: Bjarne Stroustrup calls it the "structure pointer dereference" operator (TC++PL Special Edition, p. 102). In the index he refers to it as the "member access" operator. Not sure if this is "official" but the guy did write the language, after all. 回答3: The official name for this operator

Stateless vs Stateful - I could use some concrete information

由 自闭症网瘾萝莉.ら 提交于 2019-11-27 02:31:32
I'm interested in articles which have some concrete information about stateless and stateful design in programming. I'm interested because I want to learn more about it, but I really can't find any good articles about it. I've read dozens of articles on the web which vaguely discuss the subject, or they're talking about web servers and sessions - which are also 'bout stateful vs stateless, but I'm interested in stateless vs stateful design of attributes in coding. Example: I've heard that BL-classes are stateless by design, entity classes (or atleast that's what I call them - like Person(id,
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