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为什么它更快的处理比未排序的数组排序的数组?

Here is a piece of C++ code that seems very peculiar. For some strange reason, sorting the data miraculously makes the code almost six times faster. #include <algorithm> #include <ctime> #

如何撤消Git中的最后一次提交?

I committed the wrong files to Git. I haven't yet pushed the commit to the server. How can I undo those commits?

如何在本地和远程删除Git分支?

I want to delete a branch both locally and on my remote project fork on GitHub. Failed Attempts to Delete Remote Branch $ git branch -d remotes/origin/bugfix error: branch 'remotes/origin/bugfix'

两者之间有什么区别?

What are the differences between git pull and git fetch?

什么是正确的JSON内容类型?

I've been messing around with JSON for some time, just pushing it out as text and it hasn't hurt anybody (that I know of), but I'd like to start doing things properly. I have seen so many purported "

如何修改现有的,按下的承诺吗?

I wrote the wrong thing in a commit message. Alternatively, I've forgotten to include some files. How can I change the commit message/files? The commit has not been pushed yet.

JavaScript闭包是如何工作的?

How would you explain JavaScript closures to someone with a knowledge of the concepts they consist of (for example functions, variables and the like), but does not understand closures themselves? I

如何重定向到JavaScript中的另一个网页?

How can I redirect the user from one page to another using JavaScript or jQuery?

什么

What is the use of the yield keyword in Python? What does it do? For example, I'm trying to understand this code1: def _get_child_candidates(self, distance, min_dist, max_dist): if self.

什么是

After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated, I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4.

如何检查一个字符串是否包含JavaScript字符串?

Usually I would expect a String.contains() method but there doesn't seem to be one. What is a reasonable way to check for this?

堆栈和堆是什么和在哪里?

Programming language books explain that value types are created on the stack, and reference types are created on the heap, without explaining what these two things are. I haven't read a clear

如何撤消

I mistakenly added files using the command: git add myfile.txt I have not yet run git commit. Is there a way to undo this, so these files won't be included in the commit?

我如何检查一个元素是否隐藏在jQuery中?

It is possible to toggle the visibility of an element, using the functions .hide(), .show() or .toggle(). How would you test if an element is visible or hidden?

是什么

Recently, I ran some of my JavaScript code through Crockford's JSLint, and it gave the following error: Problem at line 1 character 1: Missing "use strict" statement. Doing some searching, I

为什么HTML认为“诺里斯”是一种颜色?

How come certain random strings produce colors when entered as background colors in HTML? For example: <body bgcolor="chucknorris"> test </body> produces a document with a

如何重命名本地Git分支?

I don't want to rename a remote branch, as described in Rename master branch for both local and remote Git repositories. How can I rename a local branch which hasn't been pushed to a remote branch?

为什么要减去这两次(1927)给出一个奇怪的结果?

If I run the following program, which parses two date strings referencing times 1 second apart and compares them: public static void main(String[] args) throws ParseException { SimpleDateFormat

VAR函数名= function() { }与{ }功能functionname()

I've recently started maintaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent. The previous developer uses two

如何将Git存储库还原为以前的提交?

How do I revert from my current state to a snapshot made on a certain commit? If I do git log, I get the following output: $ git log commit a867b4af366350be2e7c21b8de9cc6504678a61b` Author: Me <

在JavaScript比较中应该使用哪个操作符(= = = =)?

I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing idSele_UNVEHtype.value.

如何消除地方(跟踪)从目前的Git工作树的文件吗?

How do you delete untracked local files from your current working tree?

可以在JSON中使用注释吗?

Can I use comments inside a JSON file? If so, how?

基于表单的网站认证的权威指南[关闭]

Form-based authentication for websites We believe that Stack Overflow should not just be a resource for very specific technical questions, but also for general guidelines on how to solve

Suppose I'm familiar with developing client-side applications in jQuery, but now I'd like to start using AngularJS. Can you describe the paradigm shift that is necessary? Here are a few questions that

如何从JavaScript中移除数组中的特定元素?

I have an array of integers, which I'm using the .push() method to add to. Is there a simple way to remove a specific element from an array? The equivalent of something like array.remove(int);. I

两者之间有什么区别?

What is the difference between: px dip dp and sp on Android?

C #字符串和字符串之间的区别是什么?

Example (note the case): string s = "Hello world!"; String S = "Hello world!"; What are the guidelines for the use of each? And what are the differences?

是java

I always thought Java was pass-by-reference; however I've seen a couple of blog posts (For example, this blog) that claim it's not. I don't think I understand the distinction they're making. What is

如何通过

We have an employee whose last name is Null. Our employee lookup application is killed when that last name is used as the search term (which happens to be quite often now). The error received (thanks

权威的C书籍指南和清单

This question attempts to collect the few pearls among the dozens of bad C++ books that are published every year. Unlike many other programming languages, which are often picked up on the go from

如何检查远程Git分支?

Somebody pushed a branch called test with git push origin test to a shared repository. I can see the branch with git branch -r. Now I'm trying to check out the remote test branch. I've tried: git

什么是简单的英语解释?

I'd prefer as little formal definition as possible and simple mathematics.

我如何强迫

How do I force an overwrite of local files on a git pull? The scenario is following: A team member is modifying the templates for a website we are working on They are adding some images to the

如何从JavaScript对象中移除属性?

Say I create an object as follows: var myObject = { "ircEvent": "PRIVMSG", "method": "newURI", "regex": "^http://.*" }; What is the best way to remove the property regex to end up with

在JavaScript中深层复制对象的最有效方式是什么?

What is the most efficient way to clone a JavaScript object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox. I've done things like obj = JSON.parse(

如何禁用CSS文本选择高亮显示?

For anchors that act like buttons (for example, Questions, Tags, Users, etc. at the top of the Stack Overflow page) or tabs, is there a CSS standard way to disable the highlighting effect if the

Python中的元类是什么?

What are metaclasses? What do you use them for?

把VS放在休息

According to the HTTP/1.1 Spec: The POST method is used to request that the origin server accept the entity enclosed in the request as a new subordinate of the resource identified by the Request-

如何解决Git中的合并冲突?

Is there a good way to explain how to resolve merge conflicts in Git?

在不同的浏览器中URL的最大长度是多少?

What is the maximum length of a URL in different browsers? Does it differ among browsers? Does the HTTP protocol dictate it?

两者之间有什么区别?

Also how do LEFT JOIN, RIGHT JOIN and FULL JOIN fit in?

如何在另一个JavaScript文件中包含一个JavaScript文件?

Is there something in JavaScript similar to @import in CSS that allows you to include a JavaScript file inside another JavaScript file?

如何检查是否在jQuery中检查复选框?

I need to check the checked property of a checkbox and perform an action based on the checked property using jQuery. For example, if the age checkbox is checked, then I need to show a textbox to

如何检查使用python是否存在文件?

How do I check whether a file exists, without using the try statement?

从内部获取源代码脚本的源目录

How do I get the path of the directory in which a Bash script is located, inside that script? For instance, let's say I want to use a Bash script as a launcher for another application. I want to

Python有三元条件操作符吗?

If Python does not have a ternary conditional operator, is it possible to simulate one using other language constructs?

The following are two methods of building a link that has the sole purpose of running JavaScript code. Which is better, in terms of functionality, page load speed, validation purposes, etc.?

如何有效地把袜子与一堆袜子配对?

Yesterday I was pairing the socks from the clean laundry and figured out the way I was doing it is not very efficient. I was doing a naive search — picking one sock and "iterating" the pile in

如何克隆Git中的所有远程分支?

I have a master and a development branch, both pushed to GitHub. I've cloned, pulled, and fetched, but I remain unable to get anything other than the master branch back. I'm sure I'm missing