Recent questions in Technique[技术]

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r - data.table vs dplyr：一个人能做得好吗，另一个做不好或做得不好？(data.table vs dplyr: can one do something well the other can't or does poorly?)

Overview (概观) I'm relatively familiar with data.table , not so much with dplyr . (我对data.table比较熟悉，而不是dplyr ... group/apply/sort while dplyr was 40% faster on the smaller ones (...

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

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typescript - 已设置InitialState，但未执行reducer。减少不改变商店(InitialState setted but reducer not being executed. Reduce doesnt change store)

I'm trying to integrate redux with my react native + typescript app. (我正在尝试将redux与我的react native + Typescript应用程序集成在一 ... )) }) )(MenuScreen)); ask by Darío GL translate from so...

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

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java - 如何在Eclipse中导入jar(How to import a jar in Eclipse)

如何在Eclipse中导入jar？ ask by user395734 translate from so...

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

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javascript - 将代理应用于对象(Applying proxy to an object)

Hi, I am trying to transform an object into a proxy, without changing the reference to the object: (嗨，我正在尝试将一 ... does not work: proxy-proxy-bar ask by Hammerbot translate from so...

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

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python - 删除，删除和弹出列表之间的区别(Difference between del, remove and pop on lists)

>>> a=[1,2,3] >>> a.remove(2) >>> a [1, 3] >>> a=[1,2,3] >>> del a[1] >>> a [1, 3] >>> a= [1,2,3] >> ... a list? (以上三种从列表中删除元素的方法之间有什么区别吗？) ask by sachin irukula translate from so...

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

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484 views

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typescript - 如何在Typescript中使用装饰器模式时使参数类型保持一致(How to make the type of parameters consistent while using decorator pattern in Typescript)

I have several functions that need to access a DB. (我有一些需要访问数据库的功能 ) const dbProcess1 = (s1: string) => { console. ... better? (有什么建议可以使它更好吗？) ask by dacapo1142 translate from so...

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

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c# - 全部选择/取消选择按钮(All select /deselect button)

enter image description here I want to make n 'all select' button in datagridview. (在此处输入图像描述，我想在datagridview中使n个全部选择按 ... Cells[0].Value = true; } } ask by ??? translate from so...

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

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486 views

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r - 在knitr :: kable（）中设置自适应col.names(Set adaptive col.names in knitr::kable())

Please consider the following. (请考虑以下内容 )I started writing reproducible documents in with R markdown and want some output for a ... 列都抛出错误还不存在 ) ask by Frederick translate from so...

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

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352 views

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sql - 如何优化此SQL Delete语句以提高速度(How to optimize this SQL Delete statement for faster speed)

There is a faster way to run this SQL delete than this one: (运行此SQL delete比此方法更快：) DELETE FROM TABLE ... DISTINCT(MAIN_TABLE.key) FROM MAIN_TABLE) ask by mister translate from so...

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

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270 views

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android - Flutter：Web视图安全来源(Flutter: Web View Secure Origin)

I am getting an error with Flutter Webview (webview_flutter: ^0.1.2) when loading a Youtube Video, (though I ... features-on-insecure-origins ) ask by skjagini translate from so...

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

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I used to be able to create a shared access signature on a Blob using the v11 Azure SDK API, like this: (我曾经能够使用v11 ... v12从BlobClient实例获取共享访问签名？) ask by Kzrystof translate from so...

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

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233 views

1 answer

php - 使用PHP刷新页面(Refresh a page using PHP)

How can I refresh a page using PHP periodically? (如何定期使用PHP刷新页面？)If I can not do it by PHP, what is the best recommended ... 这一点，那么最好的推荐方案是什么？) ask by Aan translate from so...

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

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rxjs - Rx-如何应用到允许某个时间段后发出重复项的stream uniqueUntilChanged？(Rx - How to apply to stream distinctUntilChanged that allows emit duplicate item after some period?)

So, I have to implement some chain or perhaps some custom RxJava operator to an Observable , that will distinct items emitted from ... ，但仍然不知道如何开始) ask by Patroy translate from so...

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

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python - 了解scipy.interpolate的interpn功能(Understanding interpn function of scipy.interpolate)

I am trying to understand the working of the function scipy.interpolate . (我试图了解scipy.interpolate函数的工作scipy.interpolate )I ... here? (这是怎么回事) ask by Amanda translate from so...

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

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498 views

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vue.js - vue-apollo：GraphQL查询仅在使用时运行 <ApolloQuery> 标签。从不在脚本代码中工作。 this。$ apollo.queries为空(vue-apollo: GraphQL queries only run when using <ApolloQuery> tags. Never works in script code. this.$apollo.queries is empty)

I know I'm probably missing something really super basic here, I'm trying to run a graphql query with vue-apollo... if I ... I missing? (我想念什么？) ask by LaVache translate from so...

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

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java - 如何在Eclipse中导入jar(How to import a jar in Eclipse)

如何在Eclipse中导入jar？ ask by user395734 translate from so...

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

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git - 在git 2.13之前，只保存多个已更改的文件中的一个文件(Stash only one file out of multiple files that have changed before git 2.13)

如何在我的分支上只隐藏多个已更改文件中的一个？ ask by Rachel translate from so...

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

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git - 如何更改远程Git存储库的URI（URL）？(How to change the URI (URL) for a remote Git repository?)

I have a repo (origin) on a USB key that I cloned on my hard drive (local). (我在硬盘驱动器（本地）上克隆的USB密钥上有一个回购（来源） )I moved " ... 后删除旧的遥控器（我担心会破坏我的历史记录） ) ask by e-satis translate from so...

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

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sql - PL / SQL每天两次之间更新列(PL/SQL to update column based between two times Daily)

I would like to a SQL code to update the column area based on a interval of time daily. (我想用一个SQL代码根据每天的时间间隔更新列area ... 现在我想在记录而不是查询上更新它 ) ask by paolo ricardos translate from so...

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

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288 views

1 answer

javascript - 使用jQuery更改图像源(Changing the image source using jQuery)

My DOM looks like this: (我的DOM看起来像这样：) <div id="d1"> <div class="c1"> <a href="#"><img src="img1_on.gif"></a> <a ... ? (这可能吗，还是我必须使用CSS来更改图像？) ask by user67033 translate from so...

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

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417 views

1 answer

javascript - 如何获取Node.js目录中存在的所有文件的名称列表？(How do you get a list of the names of all files present in a directory in Node.js?)

I'm trying to get a list of the names of all the files present in a directory using Node.js. (我正在尝试使用Node.js获取目录中存 ... do this? (我怎样才能做到这一点？) ask by resopollution translate from so...

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

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377 views

1 answer

string - 如何检查字符串是否在Bash中包含子字符串(How to check if a string contains a substring in Bash)

I have a string in Bash: (我在Bash中有一个字符串：) string="My string" How can I test if it contains another string? (如何测试 ... a bit clumsy. (看起来有点笨拙 ) ask by davidsheldon translate from so...

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

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534 views

1 answer

excel - 如何在VBA中声明全局变量？(How do I declare a global variable in VBA?)

I wrote the following code: (我写了以下代码：) Function find_results_idle() Public iRaw As Integer Public iColumn As Integer iRaw = 1 ... 创建全局变量需要做什么？) ask by Nimrod translate from so...

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

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415 views

1 answer

linux - 如何自动重新安装Azure Linux OS磁盘以进行读写以启用Oracle DB自动启动(How to automatically remount Azure Linux OS disk for read-write to enable Oracle DB auto-startup)

I have a Linux VM in Azure, with Oracle Database installed. (我在Azure中安装了Linux VM，并安装了Oracle数据库 )In order to get the ... 但是节省的时间量将是巨大的） ) ask by user10931326 translate from so...

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

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219 views

1 answer

php - 如何在PHP中将字符串转换为数字？(How do I convert a string to a number in PHP?)

I want to convert these types of values, '3' , '2.34' , '0.234343' , etc. to a number. (我想将这些类型的值'3' ， '2.34 ... ' 2 '2.34' 2.34 '0.3454545' 0.3454545 ask by Sara translate from so...

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

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190 views

1 answer

c++ - 如何将txt文件中的多个值输入数组C ++(How to input multiple values from a txt file into an array C++)

I am looking to input individual inputs of a .txt file into my array where each input is separated by a space. (我希望将.txt ... 12.5 3.5 10 13 ask by Rawley Fowler translate from so...

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

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461 views

1 answer

linux - 加载共享库时发生Linux错误：无法打开共享对象文件：没有这样的文件或目录(Linux error while loading shared libraries: cannot open shared object file: No such file or directory)

Program is part of the Xenomai test suite, cross-compiled from Linux PC into Linux+Xenomai ARM toolchain. (该程序是Xenomai测试套件的一部 ... ? (那到底是什么意思呢？) ask by zaratustra translate from so...

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

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766 views

1 answer

sql-server - 如何将逗号分隔的值拆分为列(How to split a comma-separated value to columns)

I have a table like this (我有这样的桌子) Value String ------------------- 1 Cleo, Smith I want to separate the comma ... fixed extra columns (我只需要两个固定的额外列) ask by Gurru translate from so...

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

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