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I am using functions which are passed down through context. ChildComponent.contextType = SomeContext; Now I ... https://stackoverflow.com/questions/53346462/react-multiple-contexts...

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.net - C# cannot convert method to non delegate type

I have a class called Pin. public class Pin { private string title; public Pin() { } public setTitle( ... questions/14877355/c-sharp-cannot-convert-method-to-non-delegate-type...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to tweak the NLTK sentence tokenizer

I'm using NLTK to analyze a few classic texts and I'm running in to trouble tokenizing the text by ... stackoverflow.com/questions/14095971/how-to-tweak-the-nltk-sentence-tokenizer...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - mysqldump from remote host

Is it possible to dump a database from a remote host through an ssh connection and have the backup file ... :https://stackoverflow.com/questions/13594895/mysqldump-from-remote-host...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - How to duplicate a folder exactly

I am trying to copy a filesystem for a device I am programming for. After so much time trying to figure ... //stackoverflow.com/questions/19434921/how-to-duplicate-a-folder-exactly...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python and Powers Math

I've been learning Python but I'm a little confused. Online instructors tell me to use the operator ** ... from:https://stackoverflow.com/questions/12043913/python-and-powers-math...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - What happens if I don't retain IBOutlet?

If I do this: @interface RegisterController : UIViewController <UITextFieldDelegate> { IBOutlet UITextField *usernameField; } ... /1250518/what-happens-if-i-dont-retain-iboutlet...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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web services - Generating Request/Response XML from a WSDL

Is there a way to generate Request & Response XML formats from just a WSDL file - if the webservice is ... .com/questions/35908226/generating-request-response-xml-from-a-wsdl...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - How to wrap a Struct into NSObject

this is supposed to be trivial I think, but I can't find a way how to wrap a Struct variable into an ... ://stackoverflow.com/questions/5691881/how-to-wrap-a-struct-into-nsobject...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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algorithm - How to generate n different colors for any natural number n?

(This question already has answers here): question from:https://stackoverflow.com/questions/2328339/how-to-generate-n-different-colors-for-any-natural-number-n...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to open the AVD manager on Ubuntu Linux from the command line?

How to open the AVD manager on Ubuntu Linux from the command line? question from:https://stackoverflow.com/questions/ ... open-the-avd-manager-on-ubuntu-linux-from-the-command-line...

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ruby on rails - How do I write a Capybara assertion that checks for the presence of a button and its enabled or disabled state?

I have an app that enables/disables buttons in response to things that happen in the UI. I can easily use ... -capybara-assertion-that-checks-for-the-presence-of-a-button-and...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to create table using select query in SQL Server?

I try to make 50-100 tables using SYS queries SELECT windows_release, windows_service_pack_level, windows_sku, ... -create-table-using-select-query-in-sql-server...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Converting an ISO 8601 timestamp into an NSDate: How does one deal with the UTC time offset?

I'm having trouble converting an ISO 8601 timestamp into an NSDate. I tried to use NSDateFormatter, but I can't get ... 8601-timestamp-into-an-nsdate-how-does-one-deal-with-the-utc...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flutter - Insert element at the beginning of the list in dart

I am just creating a simple ToDo App in Flutter. I am managing all the todo tasks in the list. I want to ... /questions/57635916/insert-element-at-the-beginning-of-the-list-in-dart...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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textview - Android SpannableString set background behind part of text

I would like to create something similar as seen on this image: I managed to create evertyhing with ... /19292838/android-spannablestring-set-background-behind-part-of-text...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python and Powers Math

I've been learning Python but I'm a little confused. Online instructors tell me to use the operator ** ... from:https://stackoverflow.com/questions/12043913/python-and-powers-math...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Reading non-standard elements in a SyndicationItem with SyndicationFeed

With .net 3.5, there is a SyndicationFeed that will load in a RSS feed and allow you to run ... /319591/reading-non-standard-elements-in-a-syndicationitem-with-syndicationfeed...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - How to set the stacksize with C++11 std::thread

I've been trying to familiarize myself with the std::thread library in C++11, and have arrived at a ... .com/questions/13871763/how-to-set-the-stacksize-with-c11-stdthread...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Bootstrap 3 btn-group Lose Active Class when Click any where on the Page

CAn you please take a look at following Demo and let me know why btn-group is loosing Active class whenever I click ... btn-group-lose-active-class-when-click-any-where-on-the-page...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django REST Framework viewset per-action permissions

Is there a best practice to assign a different permission to each action of a given APIView or ViewSet ... /questions/19313314/django-rest-framework-viewset-per-action-permissions...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - PDFsharp save to MemoryStream

I want to save a PdfSharp.Pdf.PdfDocument by its Save method to a Stream, but it doesn't attach ... from:https://stackoverflow.com/questions/1073277/pdfsharp-save-to-memorystream...

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maven - wildfly 10: java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory

I have a maven application that works fine in wildfly 8.2, but when Ideployed it in wildfly 10 this ... -10-java-lang-classcastexception-org-dom4j-documentfactory-cannot-be-ca...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql server - Quickest way to fill SQL Table with Dummy Data

What is the quickest way to fill a SQL table with dummy data? I have a wide table with about 40 fields of ... .com/questions/2899654/quickest-way-to-fill-sql-table-with-dummy-data...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to use scala.None from Java code

(This question already has answers here): question from:https://stackoverflow.com/questions/1997433/how-to-use-scala-none-from-java-code...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Normalization in MYSQL

What is normalization in MySQL and in which case and how we need to use it? question from:https://stackoverflow.com/questions/1258743/normalization-in-mysql...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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amazon web services - How to uninstall aws-cli

I am trying to set up an "Amazon Elastic Container Registry" but I get the following error when using this ... https://stackoverflow.com/questions/48572523/how-to-uninstall-aws-cli...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - iOS - How to achieve emboss effect for the text on UILabel?

Can I know how to have the emboss effect as the text "Reminders" as shown on the picture? It looks like the ... /8467141/ios-how-to-achieve-emboss-effect-for-the-text-on-uilabel...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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