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linq - FirstOrDefault() result of a struct collection?

So I've got a collection of structs (it's actually a WCF datacontract but I'm presuming this ... /stackoverflow.com/questions/15407065/firstordefault-result-of-a-struct-collection...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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react-native - 本机反应-使特定组件不是RTL设备中的RTL(react native - make specific component not RTL in RTL device)

I'm using https://github.com/ptomasroos/react-native-multi-slider , to create a range slider. (我正在使用https://github.com/ ... 道如何使一个组件忽略RTL吗？) ask by Eldar translate from so...

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

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can i have one global variable and pass to all xml suite files? or how to pass parameter from propertues file to xml file? in selenium java

I have many xml suite files and use user and pass in all file, I want to have one global parameter to pass, or pass from ... > <classes> <class name="" /> </classes> </test>...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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node.js - NodeJS Sequelize error: Column 'id' in field list is ambiguous

Model define // Stock export default function(app: Application) { const { STRING, BIGINT, TIME, TINYINT } = app.Sequelize; const ... 'currency' ], }, ], }); Please help me, thx...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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关于 mavon-editor 编辑器渲染问题

可以编辑器里可以居中，但是页面渲染成html之后，无法转换格式解析代码...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - An unexpected error occurred: "EISDIR: illegal operation on a directory, read"

I have been trying to create react app using the npx command but every time I run it, I get the error message in console: yarn add ... / .nvm / versions / node / v14 .5 .0 / bin...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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axios 怎么在Post请求中，同时传递文件和对象

addAppVersion(formdata: any, file: any) { const data = new FormData(); data.append('appfile', file); data.append('appVersion', JSON.stringify( ... ，能不能做到直接传递一个对象参数呢？或者用其他方式传递file？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - JTabbedPane swing update error

I have 2 JPanels in a JTabbedPane and when update(g) is called on a panel inside the first panel (Its ... how can i circumvent this behaviour? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Android slow AES decryption

Ref: Android encryption/decryption issue (AES) I am building an android app which requires aes decryption of a ... . Thanks in advance, Naveen See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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eclipse - Missing artifact "sun.jdk:jconsole:jar:jdk"

When adding Arquillian to a Maven build I get the above exception in Eclipse: Missing artifact sun.jdk:jconsole:jar: ... works. What can I do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angularjs - Webpack not accepting POST requests

I'm currently working on an Angular 2 web application which communicates with an API. In the application the ... instead of POST. Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift - UIBarButtonItem selector not working

I have a MainViewController embed in a Navigation Controller, as shown below: And in MainViewController.swift, I added ... am using Xcode 9.3. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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git - .gitignore Doesn't Seem To Work

My .gitignore: .DS_Store /.idea /.idea_modules /out /project /target /*.iml */resolution-cache/* */streams/* ... are still there. Your ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Commands out of sync; you can't run this command now SQL

have looked through the forums already but have been unable to solve this problem: Commands out of sync; you ... Any help appreciated. thank you See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Django filter current month data

I want to filter current month data. I tried this. this_month = datetime.datetime.now().month products ... models.DateTimeField(auto_now=True) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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docker - Angular App running on nginx and behind an additional nginx reverse proxy

I'm currently trying to create a reverse proxy for two Angular apps. I want the apps to be both accessible ... here can help me with that. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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postgresql - How can I create a constraint to check if an email is valid in postgres?

How can I create a constraint to use a regular expression in postgres? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mongodb - Mongorestore to a different database

In MongoDB, is it possible to dump a database and restore the content to a different database? For example like this ... /db1", skipping... done See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dart - How to check if dark mode is enabled on iOS/Android using Flutter?

How can I check if dark mode is enabled in Android Q with Flutter? I know how to set the dark mode, but ... theme. darkTheme: ThemeData.dark(), See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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angular - How can I use ngFor to iterate over Typescript Enum as an array of strings

I'm using Angular2 and TypeScript and I have an enum: export enum Role { ServiceAdmin, CompanyAdmin, Foreman, ... is there a simpler way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typescript - How to run the Dist Folder on Local Machine in Angular 6+?

I am building the application in Angular6+, now I ran the command ng build --prod which gave me a dist ... or serve that folder on Localhost? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oracle - How to use a package constant in SQL SELECT statement?

How can I use a package variable in a simple SELECT query statement in Oracle? Something like SELECT * FROM ... use SELECT within BEGIN/END)? See Question&Answers more detail:os...

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

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android: stretch image in imageview to fit screen

I have an imageview that has its height and width set to fill_parent with a linearlayout that has the same values ... (height); Any other ideas? See Question&Answers more detail:os...

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

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math - Calculating angle between two vectors in python

I am trying to calculate the angle between two lines in python. I searched the internet and found the equation ... in the array is different. See Question&Answers more detail:os...

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

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ssh - How to list all the folders and files in the directory after connecting through SFTP in Python

I am using Python and trying to connect to SFTP and want to retrieve an XML file from there and need to ... view all the folders and files? See Question&Answers more detail:os...

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

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scipy - Python 3D polynomial surface fit, order dependent

I am currently working with astronomical data among which I have comet images. I would like to remove the ... me to control the order? 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++ - Template specialization of a single method from a templated class

Always considering that the following header, containing my templated class, is included in at least two .CPP files, ... in VS 2008). Thanks! See Question&Answers more detail:os...

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

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regex - Case insensitive search in Mongo

I am using a case insensitive search in Mongo, something similar to https://stackoverflow.com/q/5500823/1028488. ... away. Thanks in advance See Question&Answers more detail:os...

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

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