benefit

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Socket has these new async methods since .NET 3.5 for use with SocketAsyncEventArgs (e.g. Socket.SendAsync() ), benefits being under the hood they use IO completion ports and avoid the need to keep allocating. We have made a class called UdpStream with a simple interface - just StartSend and a Completed event. It allocates two SocketAsyncEventArgs, one for send and one for receiving. The StartSend simply dispatches a message using SendAsync, and is called about 10 times a second. We use the Completed event on the receive SocketAsyncEventArgs

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm a beginner in python. I'm not able to understand what the problem is? def list_benefits(): s1 = "More organized code" s2 = "More readable code" s3 = "Easier code reuse" s4 = "Allowing programmers to share and connect code together" return s1,s2,s3,s4 def build_sentence(): obj=list_benefits() print obj.s1 + " is a benefit of functions!" print obj.s2 + " is a benefit of functions!" print obj.s3 + " is a benefit of functions!" print build_sentence() The error I'm getting is: Traceback (most recent call last): Line 15, in <module> print

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Would it prevent, for example, session hijacking? If not, what can I do to make my php sessions secure? 回答1: What is sent to the client is a session identifier and not a session variable. These session identifiers are usually set as a cookie in the client. Of course, if anyone gets hold of the session identifier (for example, by using cross site scripting attack) from the user's browser or client, he can set the session identifier in his own client and impersonate as the other user. Session variables, however, usually refer to the values in

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I know this may be a newbie question, but I'm curious as to the main benefit of eval() - where would it be used best? I appreciate any info. 回答1: The eval function is best used: Never. It's purpose is to evaluate a string as a Javascript expression. Example: eval('x = 42'); It has been used a lot before, because a lot of people didn't know how to write the proper code for what they wanted to do. For example when using a dynamic name for a field: eval('document.frm.'+frmName).value = text; The proper way to do that would be: document.frm

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: There are some semantic tags like <article>, <section>, <figure>, <header>, <footer>, <nav> in HTML5. Why should I use them, instead of <div> or <span> ? Is there any optimization? 回答1: Readability When people use "You're just arguing semantics!" as a defense in an argument, it's meant to imply they're trying to say the same thing in different ways. While it is an ok argument here, it's not as necessarily true. Using the more semantic html tags will make your HTML more readable and clear, while also allowing you to have specific CSS related

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm refactoring a large javascript document that I picked up from an open source project. A number of functions use inconsistent return statements. Here's a simple example of what I mean: var func = function(param) { if (!param) { return; } // do stuff return true; } Sometimes the functions return boolean, sometimes strings or other things. Usually they are inconsistently paired with a simple return; statement inside of a conditional. The problem is that the code is complex. It is a parser that uses a multitude of unique RegEx matches,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am learning to use Laravel 5, but I am at the query builder phase, and after looking at the first code snippets I think it is really useless when somebody has basic SQL knowledge. Example: $users = DB :: table ( 'users' ) -> select ( DB :: raw ( 'count(*) as user_count, status' )) -> where ( 'status' , '<>' , 1 ) -> groupBy ( 'status' ) -> get (); What is the purpose of learning query builder syntax if the programmer actually has at least basic knowledge about the SQL language? Moreover, moving advanced queries from a clean SQL

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I was learning more about the methods of JavaScript's Object constructor on MDN and I noticed that the last sentence of Object.freeze's description reads: Note that values that are objects can still be modified, unless they are also frozen. A behavior like that seems like it should be opt-in. What exactly is the benefit of having to manually freeze a frozen object's objects recursively? If I'm freezing an object, why would I want the objects inside of it to still be mutable? 回答1: The answer lies in the point itself Note that values that are

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Working with the excellent Three.js framework and currently looking for a good javascript inheritance pattern, I had a look to what is done in Three.js. I now have a good understanding of what's going on, except for some "class" such as Vector3. Especially, it's not clear for me, why some methods are directly added to the prototype and some are added using THREE.extend in the same "class" , like following : ... THREE.Vector3.prototype = { setX: function ( x ) { this.x = x; return this; }, ... }; //and then later in the same file THREE.extend

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: If one is dealing with hundreds of polylines, would there be a big performance benefit to encoding the polylines using https://developers.google.com/maps/documentation/utilities/polylinealgorithm?hl=sv-SE It seems that this is mostly used with API v2 and v3 handles large amounts of polylines on its own fairly well? I can't seem to find any benchmark comparisons. 回答1: There is a substantial gain when using google.maps.geometry.encoding.decodePath() to decode encoded paths when adding a polyling/polygon to a google map. I have a