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arrays - Why is map function not working as expected? ReactJS

I've got a .map function inside of return. Now every data I've managed to return expect one array of ... /questions/65888524/why-is-map-function-not-working-as-expected-reactjs...

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

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165 views

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How to implement fast-forward functionality for an audio player using JavaScript

I'm trying to implement fast-forward in my app. I've added an event listener to the fast-forward ... to-implement-fast-forward-functionality-for-an-audio-player-using-javascript...

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

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1.2k views

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problem running react native on emulator and physical device on Windows

I followed all steps here https://reactnative.dev/docs/environment-setup (React Native CLI QuickStart) but nothing ... -react-native-on-emulator-and-physical-device-on-windows...

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

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140 views

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python - how can I kill a thread on python3?

This question already has answers here: question from:https://stackoverflow.com/questions/65898415/how-can-i-kill-a-thread-on-python3...

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

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208 views

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How to wrap links into ul li in Ruby?

My apologize for syntactic illiteracy, I didn't have to deal with Ruby, but it is necessary to wrap links in the ul ... .com/questions/65893321/how-to-wrap-links-into-ul-li-in-ruby...

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

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pandas - How to plot the frequency of the single elements of my column?

I have a little problem with my program. I have a dataframe that looks like this: Person FavMovie 1 Ma Se Fr 2 Ma ... /how-to-plot-the-frequency-of-the-single-elements-of-my-column...

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

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First, I have a student model and a counseling model. There are hundreds of consultation models in one student ... .com/questions/65936093/django-model-related-list-with-list-view...

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

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442 views

1 answer

Importing Existing Sqlite Database in Flutter

I have this Sqlite database file inside the device's 'Documents' folder named backup.db. Now I ... .com/questions/65862680/importing-existing-sqlite-database-in-flutter...

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

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python - Jupyter notebook is giving error when using MinMaxScalar or StandardScalar?

When performing StandardScalar or MinMaxScalar using PythonAdv kernel the jupyter notebook is printing error. However, ... is-giving-error-when-using-minmaxscalar-or-standardscalar...

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

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404 views

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love2d - plese help me to solve Error main.lua:50: attempt to index global 'coin' (a nil value)

how do i use the Table coin in the function love.graphic.rettangle without making it global? I declare the table in ... -solve-error-main-lua50-attempt-to-index-global-coin-a-nil...

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

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http live streaming - How to continuously output screenshots while also outputting hls with ffmpeg

So I have the following process of ingesting rtsp and output hls. ffmpeg -fflags nobuffer -rtsp_transport ... continuously-output-screenshots-while-also-outputting-hls-with-ffmpeg...

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

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323 views

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reactjs - How do I hide a React component on the second click when the component is already open?

On the first click of IconButton, the React component is shown and on the second click, I'd like to hide the ... a-react-component-on-the-second-click-when-the-component-is-alread...

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

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I can't find the button via Selenium Java

Closed. This question needs details or clarity. It is not currently accepting answers. question from:https:// ... questions/65516984/i-cant-find-the-button-via-selenium-java...

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

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python pandas dataframe mutate all elements as (element / max element in row)

df= x1, x2, x3, x4, x5...x90, 'ignore' 37.4, 35.6, 43.5, 33.3, 42.4...42.5, ' ... com/questions/65878816/python-pandas-dataframe-mutate-all-elements-as-element-max-element-in-row...

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

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265 views

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Calculating the sum of the quantities of one dataframe based on dates in another dataframe (Python)

Suppose I have a first df like this: df1: item date1 date2 1 2020-06-21 2020-06-28 2 2020-05-13 2020-05-24 ... -the-sum-of-the-quantities-of-one-dataframe-based-on-dates-in-another...

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

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142 views

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Appending data to pickle in python

I am creating a program which generates a random list of songs, and has a function such that if a user ... //stackoverflow.com/questions/65660651/appending-data-to-pickle-in-python...

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

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129 views

1 answer

python - How to center values in my dictionary by one of keys values from it?

I have a dictionary: {'A1': array([1. , 0.8787]), 'A2': array([ 0.73376, -0.14261]), 'A3': array([ ... /65893728/how-to-center-values-in-my-dictionary-by-one-of-keys-values-from-it...

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

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python 3.x - Add percentage axis to Seaborn catplot with correct axis tick labels

I'm plotting the counts of a categorical variable and want to add a second y-axis that shows the percentage ... add-percentage-axis-to-seaborn-catplot-with-correct-axis-tick-labels...

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

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214 views

1 answer

javascript - How to find value in JSON object array?

I have a JSON object like this myObj = { "knowncount": [{ "id": "planet", "knownCount": 8, " ... /stackoverflow.com/questions/65909370/how-to-find-value-in-json-object-array...

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

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230 views

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python - Get the row(s) which have the max value in groups using groupby

How do I find all rows in a pandas data frame which have the max value for count column, after grouping by ... /65916516/pandas-get-item-id-of-the-most-popular-in-category...

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

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683 views

1 answer

border - Implementation Outlined text field Input with lable text in flutter application

i want to have a textFieldInput with border that has label inside the border like the image below. Thankyou in ... -outlined-text-field-input-with-lable-text-in-flutter-application...

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

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python - Kivy 2 lines of text for label

<AI_Window>: name: "AI" GridLayout: cols:1 rows:4 Label: text: "Data Mining " text: "test" I am trying ... ://stackoverflow.com/questions/65893802/kivy-2-lines-of-text-for-label...

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

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859 views

1 answer

amazon s3 - Download/Copy tar.gz File from S3 to EC2

When I download a tar.gz file from AWS S3, and then I try to untar it, I am getting the following error: ... .com/questions/65828987/download-copy-tar-gz-file-from-s3-to-ec2...

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

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165 views

1 answer

javascript - Jquery Problem Input Reading Value Problem

I have problem with jquery getting input data when i created new input with jquery I need get value ... .com/questions/65938939/jquery-problem-input-reading-value-problem...

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

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499 views

1 answer

bash - 如何从命令行重新加载.bash_profile？(How to reload .bash_profile from the command line?)

How can I reload .bash_profile from the command line? (如何从命令行重新加载.bash_profile ？)I can get the shell to recognize changes to ... 我希望能够按需执行此操作 ) ask by markdorison translate from so...

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

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444 views

1 answer

r - 如何将数据框列转换为数字类型？(How to convert a data frame column to numeric type?)

如何将数据框列转换为数字类型？ ask by acroa translate from so...

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

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505 views

1 answer

java - 为什么后台工作者服务活动处于打开状态时我的应用程序速度变慢？(Why is my app slowing down while a Background Worker Service activity is on?)

I have background service activity for scraping rss from web pages. (我有后台服务活动，用于从网页上抓取RSS )And while the worker activity ... 么办法可以解决这个问题？) ask by Trajce Arsovski translate from so...

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

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373 views

1 answer

java - 表示消息寻址属性的必需标头不存在(A required header representing a Message Addressing Property is not present)

I am getting this error in SOAPUI: (我在SOAPUI中收到此错误：) <env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" ... for all, (感谢所有人，) ask by Raziye AYDIN translate from so...

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

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