大约有 31,840 项符合查询结果（耗时：0.0486秒） [XML]
Add new field to every document in a MongoDB collection
...bjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> item = db.foo.findOne()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"), "test" : "a" }
> db.foo.update({"_id" :ObjectId("4e93037bbf6f1dd3a0a9541a") },{$set : {"new_field":1}})
> db.foo.find()
{ "_id" : ObjectId("4e93037bbf6f1dd3a0a9541a"...
Is there a way to simulate the C++ 'friend' concept in Java?
I would like to be able to write a Java class in one package which can access non-public methods of a class in another package without having to make it a subclass of the other class. Is this possible?
...
Multiple constructors in python? [duplicate]
... define multiple constructors. However, you can define a default value if one is not passed.
def __init__(self, city="Berlin"):
self.city = city
share
|
improve this answer
|
...
Remove everything after a certain character
...r expressions, which should only really be used when necessary (this isn't one of those cases).
Updated code to account for no '?':
var s = '/Controller/Action';
var n = s.indexOf('?');
s = s.substring(0, n != -1 ? n : s.length);
document.write(s);
Sample here
...
How to exit git log or git diff [duplicate]
I'm trying to learn Git with the help of Git Immersion .
There's one thing that frustrates me whenever I use git log or git diff :
...
Simple example of threading in C++
Can someone post a simple example of starting two (Object Oriented) threads in C++.
7 Answers
...
How do I configure IIS for URL Rewriting an AngularJS application in HTML5 mode?
...fter $locationProvider.html5Mode(true) is set in app.js.
Hope, helps someone out.
<system.webServer>
<rewrite>
<rules>
<rule name="AngularJS Routes" stopProcessing="true">
<match url=".*" />
<conditions logicalGrouping="Matc...
How can I add an empty directory to a Git repository?
...the README solution proposed by @JohnMee should be used together with this one; the .gitignore file provides an explanation of what we want to keep out of version control, while the README file explains what is the purpose of the directory, which are both very important pieces of information.
...
What is the difference between POST and GET? [duplicate]
...use side-effects, such as using it for taking actions in web applications. One reason for this is that GET may be used arbitrarily by robots or crawlers, which should not need to consider the side effects that a request should cause.
and
POST submits data to be processed (e.g., from an HTML f...
How can my iphone app detect its own version number?
I'm writing an iPhone app. It's already been published, but I would like to add a feature where its version number is displayed.
...