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Elasticsearch 2.1: Result window is too large (index.max_result_window)

We retrieve information from Elasticsearch 2.1 and allow the user to page thru the results. When the user ... options to solve my problem? See Question&Answers more detail:os...

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

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How can I create a random number that is cryptographically secure in python?

I'm making a project in python and I would like to create a random number that is cryptographically secure, How ... string, and not a number. See Question&Answers more detail:os...

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

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Is there functionality to generate a random character in Java?

Does Java have any functionality to generate random characters or strings? Or must one simply pick a random integer ... code to a character? See Question&Answers more detail:os...

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

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python - Define a method outside of class definition?

class MyClass: def myFunc(self): pass Can I create MyFunc() outside of the class definition, maybe even in another module? See Question&Answers more detail:os...

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

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exit.c:(.text+0x18): undefined reference to `_exit' when using arm-none-eabi-gcc

I'm new to the field of microcontrollers. I need to port an IDE which is compiling programs for AVR ... in the command line specify. See Question&Answers more detail:os...

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

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541 views

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r - duplicate 'row.names' are not allowed error

I am trying to load a csv file that has 14 columns like this: StartDate, var1, var2, var3, ..., var14 when ... is a (comma separated) csv file. See Question&Answers more detail:os...

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

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bash - Waiting for background processes to finish before exiting script

How do I make sure that all my background processes have finished execution before I exit my script (TCL/Bash). ... specific way to do this? See Question&Answers more detail:os...

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

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java - How to add a linked source folder in Android Studio?

In Eclipse I can add a source folder to my android project as a "linked source folder". How do I achieve ... external folder to build in gradle? See Question&Answers more detail:os...

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

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Iterating over JSON object in C#

I am using JSON.NET in C# to parse a response from the Klout API. My response is like this: [ { "id": " ... will be. How can I solve this? See Question&Answers more detail:os...

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

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c++ - The copy constructor and assignment operator

If I override operator= will the copy constructor automatically use the new operator? Similarly, if I define a ... from the copy constructor? See Question&Answers more detail:os...

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

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350 views

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Is -Djava.library.path=... equivalent to System.setProperty("java.library.path", ...)

I load an external library that is placed in ./lib. Are these two solutions to set the java.library.path ... set the path in the code? See Question&Answers more detail:os...

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

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A unicode newline character(u000d) in Java

Let's see the following code snippet in Java. public class Main { public static void main(String[] args) { // ... does it output "Hello" here? See Question&Answers more detail:os...

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

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CSS Selector for nth range?

How can I adapt the CSS selector below: .myTableRow td:nth-child(?){ background-color: #FFFFCC; } so it applies to td ... 5</td> </tr> </table> See Question&Answers more detail:os...

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

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java - Log4J2 - assigning file appender filename at runtime

I have a log4j2.xml config file in the class path. One of the appenders is a File appender, and I ... to change the configuration is hidden. See Question&Answers more detail:os...

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

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python - How can I subclass a Pandas DataFrame?

Subclassing Pandas classes seems a common need, but I could not find references on the subject. (It seems ... for subclassing pandas.Series? See Question&Answers more detail:os...

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

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1.0k views

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typescript - localStorage is not defined (Angular Universal)

I am using universal-starter as backbone. When my client starts, it read a token about user info from ... .getItem is not a function See Question&Answers more detail:os...

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

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341 views

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php - How to prevent the cron job execution, if it is already running

I have one php script, and I am executing this script via cron every 10 minutes on CentOS. The problem is ... Linux commands or similar to this? See Question&Answers more detail:os...

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

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1.3k views

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azure devops - How to synchronize VSTS and Github respositories when commits are made

I have a repository in visual studio team services that I would like to keep synchronized with a github repository ... its synced to VSTS. See Question&Answers more detail:os...

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

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905 views

1 answer

package - Java: Subpackage visibility?

I have two packages in my project: odp.proj and odp.proj.test. There are certain methods that I want ... same package? Use extensive reflection? See Question&Answers more detail:os...

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

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113 views

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How to delete a folder with files using Java

I want to create and delete a directory using Java, but it isn't working. File index = new File("/home/Work/Indexer1 ... )) { index.mkdir(); } } See Question&Answers more detail:os...

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

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788 views

1 answer

javascript - Regex to replace everything except numbers and a decimal point

I have a text field that needs to remain only text or decimal. Here is the code that I'm currently using to ... a decimal? Thanks for the help See Question&Answers more detail:os...

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

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321 views

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C++ inheritance - inaccessible base?

I seem to be unable to use a base class as a function parameter, have I messed up my inheritance? I have ... make that call in my main function See Question&Answers more detail:os...

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

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503 views

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c# - How to get awaitable Thread.Sleep?

I'm writing a network-bound application based on await/sleep paradigm. Sometimes, connection errors happen, ... creating any additional thread See Question&Answers more detail:os...

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

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880 views

1 answer

react native - ES6, how can you export an imported module in a single line?

I'd like to the following but with a single line, if possible: import Module from './Module/Module;' export ... Module from './Module/Module; See Question&Answers more detail:os...

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

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504 views

1 answer

kotlin - Error : Program type already present: android.support.design.widget.CoordinatorLayout$Behavior

I am getting the following error while building the project. haven't used CoordinatorLayout in this project. just added ... processor:3.1.0" } See Question&Answers more detail:os...

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

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382 views

1 answer

c# - What is IP address '::1'?

I was playing with sockets on local machine with no network connection. See below: IPAddress address = IPAddress.Any; // doesn ... "::1"), 0); } See Question&Answers more detail:os...

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

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280 views

1 answer

Will OrderedDict become redundant in Python 3.7?

From the Python 3.7 changelog: the insertion-order preservation nature of dict objects has been declared to ... -order for normal dictionaries. See Question&Answers more detail:os...

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

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292 views

1 answer

html - How to set an image's width and height without stretching it?

If I have: #logo { width: 400px; height: 200px; } then <img id="logo" src="logo.jpg"/> will stretch to ... >? I hate adding markup for styling. See Question&Answers more detail:os...

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

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