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performance - Is there any guarantee of alignment of address return by C++'s new operation?

Most of experienced programmer knows data alignment is important for program's performance. I have seen some programmer wrote ... myself, if not, I have to. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Create MySQL database from Java

Is it possible to create a MySQL database from Java? I have only seen connection URLs examples like this where the ... I only have a login name and password? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to calculate intersection of multiple arrays in JavaScript? And what does [equals: function] mean?

I am aware of this question, simplest code for array intersection but all the solutions presume the number of ... out, while equals: function is highlighted. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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aop - execution Vs. call Join point

I have two different aspect classes to count the number of non-static method calls for an execution of a ... the reason of second situation is appreciated. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Weighted choice short and simple

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jquery - form confirm before submit

I am using a simple form and I want to allow the user to confirm before the form submits... I know this ... submit the form. I hope this makes sense. thanks. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - What happens if I don't call Dispose on the pen object?

What happens if I don't call Dispose on the pen object in this code snippet? private void panel_Paint(object sender, ... Color.White, 1); //Do some drawing } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Adding CSRFToken to Ajax request

I need to pass CSRFToken with Ajax based post request but not sure how this can done in a best way. Using ... a request parameter and not as a request header Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - KeyListener, keyPressed versus keyTyped

I have a JFrame (well, a class which extends JFrame) and I want to do an action when I press the F5 key. ... arg0) { // TODO Auto-generated method stub } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - cross-domain iframe resizer?

I'm looking for a good cross-domain iframe resizing script that adjusts its height based on its content. I have ... iframe as well. Is there any out there? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Is it possible to update FileList?

I have: <input type="file" id="f" name="f" onchange="c()" multiple /> Every time the user selects a ... types. Why is it complaining about the wrong type here? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can we JOIN two Spark SQL dataframes using a SQL-esque "LIKE" criterion?

We are using the PySpark libraries interfacing with Spark 1.3.1. We have two dataframes, documents_df := { ... like this before? With kind regards, Will Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - What is a thread exit code?

What exactly is a thread exit code in the Output window while debugging? What information it gives me? Is ... possible exit codes along with its significance? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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SQL Server 2008 Windows Auth Login Error: The login is from an untrusted domain

When attempting to connect to a SQL Server 2008 Instance using Management Studio, I get the following error: ... SQL Enterprise Edition On Windows 2003 Server Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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redirect - How do I get the referrer URL in an ASP.NET MVC action?

How do I get the referrer URL in an ASP.NET MVC action? I am trying to redirect back to the page before you called an action. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to do an Integer.parseInt() for a decimal number?

The Java code is as follows: String s = "0.01"; int i = Integer.parseInt(s); However this is throwing a NumberFormatException... What could be going wrong? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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156 views

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Python: Catching specific exception

I want to catch a specific ValueError, not just any ValueError. I tried something like this: try: maquina['WPF'] = ... even if it is the one I want to avoid. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Trigger Change event when the Input value changed programmatically?

I have an Input in my form. <input type="text" id="changeProgramatic" onchange="return ChangeValue(this);"/> If I ... (Note: I'm passing 'this' into the method) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - How Random is System.Guid.NewGuid()?

I know this may sounds like a pointless question, but hear me out... I basically want to know if I can ... , my question is specific to the .Net framework. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Cannot install Alamofire in new Xcode Project. "No Such module Alamofire"

I follow the instructions to the T. Fresh install of all, yet getting the error: "No Such module ... dependency for your application target. And my screenshots Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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706 views

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python - AttributeError: 'DataFrame' object has no attribute 'map'

I wanted to convert the spark data frame to add using the code below: from pyspark.mllib.clustering import KMeans ... know what I did wrong here? Thanks! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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339 views

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objective c - iOS temporary folder location

My app has just been rejected by Apple because it was storing temporary or cache files in the documents ... application's temporary directory at debug time ? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

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r - Finding Overlaps between interval sets / Efficient Overlap Joins

Overview: I need to join two tables: ref contains the time intervals (from t1 to t2) along with an id for each ... .18845022 space t1 t2 id i.t1 i.t2 res Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - How to list all dates between two dates

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - How do I use cookies across two different domains?

I need to share SSO information between two different domains with a cookie, can this be done in PHP and how? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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760 views

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events - How do I handle simultaneous key presses in Java?

How do I handle simultaneous key presses in Java? I'm trying to write a game and need to handle multiple ... the old pressed key isn't being detected anymore. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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216 views

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android.content.Context.getPackageName()' on a null object reference

I am working with Fragments which implements an interface. public class SigninFragment extends Fragment implements ... os.ZygoteInit.main(ZygoteInit.java:694) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

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Truncate to three decimals in Python

How do I get 1324343032.324? As you can see below, the following do not work: >>1324343032.324325235 * ... .3239999 >>str(1324343032.3239999) '1324343032.32' Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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