Recent questions in Technique[技术]

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css - SCSS和Sass有什么区别？(What's the difference between SCSS and Sass?)

From what I've been reading, Sass is a language that makes CSS more powerful with variable and math support. (根据我的阅读 ... (类似？)Different? (不同？) ask by bruno077 translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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384 views

1 answer

r - 如何在R数据帧中用零替换NA值？(How do I replace NA values with zeros in an R dataframe?)

I have a data frame and some columns have NA values. (我有一个数据框，有些列有NA值。) How do I replace these NA values with zeroes? (如何用零代替这些NA值？) ask by Renato Dinhani translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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290 views

1 answer

javascript - 如何将对象添加到数组(How to add an object to an array)

How can I add an object to an array (in javascript or jquery)? (如何将对象添加到数组（使用javascript或jquery）？)For example, what is the ... 何将对象放入数组并将其保存到变量？) ask by naser translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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448 views

1 answer

javascript - 图像因Intersection Observer API问题而延迟加载(Images lazy loading with Intersection Observer API issue)

everyone. (大家 ) I've got gallery of 1609 images and I'm trying to configure images lazy loading with Intersection observer ... (有什么提示吗？) ask by Drezor Warlock translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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487 views

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string - 如何从Bash变量中修剪空格？(How to trim whitespace from a Bash variable?)

I have a shell script with this code: (我有一个带有以下代码的shell脚本：) var=`hg st -R "$path"` if [ -n "$var" ]; then echo $var ... ，但是我想认为有一个更优雅的解决方案 ) ask by community wiki translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

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python - 过去n个日期中熊猫的真实值总和(Sum of true values over past n dates in pandas)

I have a dataframe of several thousand rows with columns of geography, response_dates and True/False for ... name='Past_4_dates_sum_of_true') ask by JamesMiller translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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329 views

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c# - 与枚举互锁。比较交换(Interlocked.CompareExchange with enum)

I'm trying to use Interlocked.CompareExchange with this enum: (我正在尝试与此枚举一起使用Interlocked.CompareExchange ：) public enum State { Idle, ... (但是，有更好的方法吗？) ask by joe translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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364 views

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dynamic - Flutter-动态创建表(Flutter - Creating tables dynamically)

I'm trying to dynamically create tables using Dart and Flutter. (我正在尝试使用Dart和Flutter动态创建表 )Something like this The number ... 成此操作的技巧将不胜感激 ) ask by kaden_shaihd translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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507 views

1 answer

composer-php - 我可以在Symfony 5上安装LiipImagineBundle吗？(Can I install LiipImagineBundle with Symfony 5?)

I'm trying to install LiipImagineBundle with Symfony 5 but I'm getting this error : (我正在尝试使用Symfony 5安装LiipImagineBundle，但出现此错误： ... 我怎样才能解决这个问题？) ask by simslay translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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222 views

1 answer

javascript - 功能之前，感叹号有什么作用？(What does the exclamation mark do before the function?)

!function () {}(); ask by Sebastian Otto translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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448 views

1 answer

html - 隐藏滚动条，但仍可以滚动(Hide scroll bar, but while still being able to scroll)

I want to be able to scroll through the whole page, but without the scrollbar being shown. (我希望能够滚动浏览整个页面，但不显示滚动 ... . (请仅使用CSS或HTML ) ask by Oussama el Bachiri translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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453 views

1 answer

python - 如何按值对字典排序？(How do I sort a dictionary by value?)

This post is a Community Wiki) . 这篇文章是社区维基) ) Edit existing answers to improve this post. 编辑现有答案以改善此职位 ) It is not ... 单的解决方案来按升序或降序进行排序 ) ask by Gern Blanston translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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221 views

1 answer

git - “下游”和“上游”的定义(Definition of “downstream” and “upstream”)

I've started playing with Git and have come across the terms "upstream" and "downstream". (我已经开始玩Git并遇到过上游和下游这两个词 )I' ... 理工具）和源代码的上下文中意味着什么？) ask by brendan translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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215 views

1 answer

c++ - C ++中'struct'和'typedef struct'之间的区别？(Difference between 'struct' and 'typedef struct' in C++?)

In C++, is there any difference between: (在C ++中，之间有什么区别：) struct Foo { ... }; and (和) typedef struct { ... } Foo; ask by criddell translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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514 views

1 answer

angular - 如何在角度的ng-multiselect-dropdown中添加自定义按钮(How to add custom button in ng-multiselect-dropdown in angular)

I wanted to add button in ng-multiselect-dropdown like ok button for closing the dropdown and select all and unSelect button into ... 显示页面的图像 ) ask by Anant Doshi translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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556 views

1 answer

html - 如何创建带有固定/冻结的左列和可滚动主体的HTML表？(How do I create an HTML table with a fixed/frozen left column and a scrollable body?)

I need a simple solution. (我需要一个简单的解决方案 )I know it's similar to some other questions, like: (我知道它与其他一些问题类似，例如：) HTML ... 个左列，我希望有一个简单且无脚本的解决方案 ) ask by agsamek translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

1 answer

r - 从命令行运行R脚本(Run R script from command line)

I have a file, called ar , it has a chmod of 755, (我有一个名为ar的文件，它的chmod为755，) sayHello <- function(){ print('hello') ... command-line? (如何通过命令行运行它？) ask by Sait translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

1 answer

git - 如何使Git使用我选择的编辑器进行提交？(How do I make Git use the editor of my choice for commits?)

I would prefer to write my commit messages in Vim, but it is opening them in Emacs. (我更愿意在Vim中编写我的提交消息，但是它正在Emacs中打开它们 ... 局执行此操作，而不仅仅是针对单个项目 ) ask by brasskazoo translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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501 views

1 answer

javascript - Javascript函数将日期yyyy / mm / dd转换为dd / mm / yy(Javascript function to convert date yyyy/mm/dd to dd/mm/yy)

I am trying to create a function on javascript to bring the date from my database in format (yyyy-mm-dd) and display it on the ... 让我知道您是否需要更多说明 ) ask by Amra translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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316 views

1 answer

flutter - Flutter：更新列表中的特定索引（Firestore）(Flutter: Update specific index in list (Firestore))

How exactly do you update a specific value in a list based on it's index? (如何根据索引精确地更新列表中的特定值？)For example, ... .$index.lastName1': 'newName') }); ask by Mr Jax translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

1 answer

javascript - 从AngularJS控制器将HTML插入视图(Insert HTML into view from AngularJS controller)

Is it possible to create an HTML fragment in an AngularJS controller and have this HTML shown in the view? (是否可以在AngularJS控制器中 ... </li></ul>" </div> ask by Swaff translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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356 views

1 answer

json - 什么是正确的JSON内容类型？(What is the correct JSON content type?)

I've been messing around with JSON for some time, just pushing it out as text and it hasn't hurt anybody (that I know of), but I ... (，但我想要一个更有针对性的答案 ) ask by Oli translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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375 views

1 answer

excel - 如何从VBA函数返回结果(How to return a result from a VBA function)

How do I return a result from a function? (如何从函数返回结果？) For example: (例如：) Public Function test() As Integer return 1 End ... an integer? (如何使此函数返回整数？) ask by Mike translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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455 views

1 answer

bash - 如何在Bash中解析命令行参数？(How do I parse command line arguments in Bash?)

Say, I have a script that gets called with this line: (说，我有一个脚本被此行调用：) ./myscript -vfd ./foo/bar/ ... /fizz/someOtherFile $outFile方式是什么？) ask by Lawrence Johnston translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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484 views

1 answer

c# - 在C＃中，我应该使用string.Empty还是String.Empty或“”来初始化字符串？(In C#, should I use string.Empty or String.Empty or “” to intitialize a string?)

In C#, I want to initialize a string value with an empty string. (在C＃中，我想用一个空字符串初始化一个字符串值 ) How should I do this ... ""; or what? (或者是什么？) ask by Daniel Kreiseder translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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751 views

1 answer

nginx - 如何从Docker容器内部连接到计算机的本地主机？(From inside of a Docker container, how do I connect to the localhost of the machine?)

So I have a Nginx running inside a docker container, I have a mysql running on localhost, I want to connect to the MySql from ... 而限制Docker的可达性该IP地址 ) ask by Phil translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

195 views

1 answer

python - 错误：找不到vcvarsall.bat(error: Unable to find vcvarsall.bat)

I tried to install the Python package dulwich : (我试图安装Python软件包dulwich ：) pip install dulwich But I get a ... error: Unable to find vcvarsall.bat ask by okada translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

292 views

1 answer

javascript - Konva.Node.create问题(Konva.Node.create Issue)

Can't draw anything after using Konva.Node.create. (使用Konva.Node.create后无法绘制任何内容 )I tired everything but it's not ... 不胜感激 )Thanks (谢谢) ask by Arjun Kariyadan translate from so...

asked Feb 21, 2021 in Technique[技术] by 深蓝 (71.8m points)

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