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Creating function with variable number of arguments or parameters in Dart

I am looking for a way to create a function with a variable number of arguments or parameters in Dart. ... -function-with-variable-number-of-arguments-or-parameters-in-dart...

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

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python - Use Distance Matrix in scipy.cluster.hierarchy.linkage()?

I have a distance matrix n*n M where M_ij is the distance between object_i and object_j. So as ... /questions/18952587/use-distance-matrix-in-scipy-cluster-hierarchy-linkage...

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

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git - SourceTree App says uncommitted changes even for newly-cloned repository - what could be wrong?

A remote git repository is just cloned to a local box using Atlassian SourceTree. Even no files have really ... -app-says-uncommitted-changes-even-for-newly-cloned-repository-what...

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

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svg - D3 transform scale and translate

I tried to understand how the transform is working in D3 but I think I didn't get it. Does the ... :https://stackoverflow.com/questions/10893004/d3-transform-scale-and-translate...

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

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python - Django Models (1054, "Unknown column in 'field list'")

No idea why this error is popping up. Here are the models I created - from django.db import models from ... .com/questions/3787237/django-models-1054-unknown-column-in-field-list...

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

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python - 500 Error without anything in the apache logs

I am currently developing an application based on flask. It runs fine spawning the server manually using app.run ... questions/8007176/500-error-without-anything-in-the-apache-logs...

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

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git - Pull in changes from a Github fork

Someone forked a Github project of mine and made some changes. How can I merge the changes back in to my ... stackoverflow.com/questions/4581740/pull-in-changes-from-a-github-fork...

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

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.net - Latest Dapper VS Entity Framework 6 performance considerations

There are a few performance comparisons between Dapper (which seems to be the fastest, most popular " ... /25750154/latest-dapper-vs-entity-framework-6-performance-considerations...

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Does Android Studio 3 support Java 9 for Android development? If so, what features of Java 9 are supported?

I'm going to install Android Studio 3 in order to develop an Android application. I'd like to know if it is ... -studio-3-support-java-9-for-android-development-if-so-what-featur...

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

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ios - No Push Notification Capability in Xcode

I don't know why, but the option Push Notifications of Capabilities in Xcode is not displayed. Why ... stackoverflow.com/questions/30979218/no-push-notification-capability-in-xcode...

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

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java - How do I install a JRE or JDK to run the Android Developer Tools on Windows 7?

I'm trying to install the Android Developer Tools on my Windows 7 computer, so that I can use the Android emulator to ... jre-or-jdk-to-run-the-android-developer-tools-on-windows-7...

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

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How do you prevent Visual Studio from switching to the Code Analysis tab after each build?

After each build, Visual Studio 2012 switches from the Solution Explorer to the Code Analysis tab, usually with the ... -studio-from-switching-to-the-code-analysis-tab-after-e...

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

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coding style - What is the motivation behind static polymorphism in C++?

I understand the mechanics of static polymorphism using the Curiously Recurring Template Pattern. I just do not ... /what-is-the-motivation-behind-static-polymorphism-in-c...

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

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sqlite - what is the use of SQLiteDatabase.CursorFactory in Android?

I have created a database by extending SQLiteOpenHelper class. And its created also. This is code I am ... 11643294/what-is-the-use-of-sqlitedatabase-cursorfactory-in-android...

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

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c# - How can I use the RelayCommand in wpf?

How can I use the RelayCommand in wpf? question from:https://stackoverflow.com/questions/862570/how-can-i-use-the-relaycommand-in-wpf...

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

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What happens to those who break open source license?

(Closed.) This question is off-topic. It is not currently accepting answers. question from:https://stackoverflow. ... /3149355/what-happens-to-those-who-break-open-source-license...

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

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java - Close a Scanner linked to System.in

I have a Scanner linked to System.in. Now, after using the Scanner, I should close it, as it is bad ... //stackoverflow.com/questions/14142853/close-a-scanner-linked-to-system-in...

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

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javascript - What is a proper way of end-to-end (e2e) testing in Vue.js

Of cause I can use selenium-standalone with xpath to test an app. But testing SPA could be challenging sometime. But, for ... -a-proper-way-of-end-to-end-e2e-testing-in-vue-js...

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

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git - Where is the local repository located?

From Wikipedia: Where is said "Local repository" located physically (in the file system)? question from:https ... .com/questions/8855880/where-is-the-local-repository-located...

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

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view - android: what is the difference between focused, enabled, pressed, and selected states?

I looked at http://developer.android.com/reference/android/view/View.html to figure out the differences but ... what-is-the-difference-between-focused-enabled-pressed-and-selected...

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

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sql - What is the difference between CLOB and NCLOB?

Can you state any difference between the CLOB and NCLOB? question from:https://stackoverflow.com/questions/6854609/what-is-the-difference-between-clob-and-nclob...

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

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amazon s3 - Why are S3 and Google Storage bucket names a global namespace?

This has me puzzled. I can obviously understand why account ID's are global, but why bucket names? Wouldn't it ... /why-are-s3-and-google-storage-bucket-names-a-global-namespace...

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c preprocessor - C++ #include semantics

This is a multiple question for the same pre-processing instruction. 1 - <> or "" ? Apart from the ... question from:https://stackoverflow.com/questions/179213/c-include-semantics...

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

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c# - Where is == operator defined in Class "object"?

I searched the source code of FCL, and I got confused that string.Equals() uses Object.ReferenceEquals(), and ... .com/questions/34172634/where-is-operator-defined-in-class-object...

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

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Android - Performing stop of activity that is not resumed

When I push my app to background, and do some other stuff like whatsapp or sms, onResume it works great ... /26375920/android-performing-stop-of-activity-that-is-not-resumed...

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

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Please configure Android SDK

I am getting this error: Please configure Android SDK Onclick of configure i getting one popup question ... ://stackoverflow.com/questions/50207790/please-configure-android-sdk...

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

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Equivalent in C++ of Yield in C#?

public void Consumer() { foreach(int i in Integers()) { Console.WriteLine(i.ToString()); } } public ... /stackoverflow.com/questions/7213839/equivalent-in-c-of-yield-in-c...

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

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javascript - Geolocation API on the iPhone

Does anyone know whether the iPhone supports or will soon support the W3C Geolocation specification? I'm ... /stackoverflow.com/questions/221592/geolocation-api-on-the-iphone...

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

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