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reactjs - how to append react div element from an array with a child element ? and how to give to mapped parent elements unique "key" props

const group = [] for (let i = 0; i < 4; i++) { group.push(<div className="parent"></div>) } return ( ... -to-append-react-div-element-from-an-array-with-a-child-element-and-how-to...

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

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dictionary - Sort by key in map type column for each row in spark dataframe

I have a spark dataframe in the below format: Name LD_Value A37 Map(10 -> 0.20,5 -> 0.30,17 -> 0.25) ... /65929879/sort-by-key-in-map-type-column-for-each-row-in-spark-dataframe...

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

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java - Airline reservation System UML question - where do these methods belong?

Closed. This question is opinion-based. It is not currently accepting answers. question from:https:// ... -reservation-system-uml-question-where-do-these-methods-belong...

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

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How To Print to Zebra RW420 from Python

Ok, so here's the scenario: I have a shopify shop, and I want to be able to use my zebra RW420 ... /stackoverflow.com/questions/65929864/how-to-print-to-zebra-rw420-from-python...

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

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aws cdk - Can I execute another script with values created from cdk deploy?

I'm trying to create EC2 instance with aws CDK and run some scripts to the newly deployed EC2 instance basically ... -i-execute-another-script-with-values-created-from-cdk-deploy...

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

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post - HTTP Response Code -1 from IFTTT via Arduino IDE

I am trying to set up an ESP8266 ESP-01 WiFi Module to post a tweet when sent some sensor data. For now, ... .com/questions/65929804/http-response-code-1-from-ifttt-via-arduino-ide...

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

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ios - targetContentOffset in ScrollViewWillEndDragging: is mostly returning zero

The UIScrollView delegate method scrollViewWillEndDragging is sometimes returning zero in targetContentOffset argument. ... -in-scrollviewwillenddragging-is-mostly-returning-zero...

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

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java - Process OutputStream hangs when reading from python sub-process

This code works as expected. public static void main(String[] args) { char[] buffer=new char[16]; ... /65929760/process-outputstream-hangs-when-reading-from-python-sub-process...

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

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python - Select rows in pandas MultiIndex DataFrame

What are the most common pandas ways to select/filter rows of a dataframe whose index is a MultiIndex? Slicing ... /65929751/expected-tuple-but-get-str-when-reindexing-a-dataframe...

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

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Any existing javascript modules to would allow me to create a 3d modelling of the human anatomy

I am trying to replicate a design from dribbble into code, this design being a model of the human anatomy to be used ... -modules-to-would-allow-me-to-create-a-3d-modelling-of-th...

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

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ubuntu - libudev.so.1: cannot open shared object file

I've been using Ubuntu for WSL and started having problems about a month ago. I was getting some errors with ... com/questions/65929671/libudev-so-1-cannot-open-shared-object-file...

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

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mapbox - Mbtiles generation with tippecanoe on a mixed geojson feature file

I have a bunch of geojson files that I want to use to create a .mbtiles file, these geojson files ... 65929626/mbtiles-generation-with-tippecanoe-on-a-mixed-geojson-feature-file...

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

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function - In R data frame for each set of rows and column use value that is not na

I have a data frame df of the following structure: observation x1 x2 x3 x4 "obs1" NA NA NA 51 "obs1" NA NA NA NA ... frame-for-each-set-of-rows-and-column-use-value-that-is-not-na...

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

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typescript - How to download multiple files as zip from sharepoint library using graph api url in Angular?

I want to download files from share point using graph api in client side (Angular) Installed msal-angular and microsoft ... -files-as-zip-from-sharepoint-library-using-graph-api-ur...

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

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javascript - TypeError: Cannot read property of undefined google sheets app scripts

I have code where I'm trying to index and pull data from a previous sheet. This code used to work ... 65934295/typeerror-cannot-read-property-of-undefined-google-sheets-app-scripts...

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

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json - How to edit a server-side file in javascript?

I'm making like a messageboard system and I'm already using those XMLHttpRequest things to obtain a JSON database, ... /65930575/how-to-edit-a-server-side-file-in-javascript...

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

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How can I define more than one directory variable in NSIS script?

Please note that I have created a single variable without a problem as described here, but when I try to create a ... -can-i-define-more-than-one-directory-variable-in-nsis-script...

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

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python - how to get sum row into xls by xlwt

I have a tuple like t = ((a,b,1,2),(a,b,3,4),(a,c,1,3),(c,d,3,6)) I used xlwt's wb ... from:https://stackoverflow.com/questions/65930491/how-to-get-sum-row-into-xls-by-xlwt...

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

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visual studio code - VSCode issue with Python versions and environments from Jupyter Notebooks

Issue: I am having issues with the environment and version of Python not matching the settings in VSCode, ... -issue-with-python-versions-and-environments-from-jupyter-notebooks...

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

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python - New Entry of Data overwrites all past entries in column , how do i correct this?

Using Django, when the User fills out the webform, one of the saved Data overwrites all pass entered data for that ... -overwrites-all-past-entries-in-column-how-do-i-correct-this...

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

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ASP.NET Core 3.1 Use both OpenIDConnect and Custom Cookie Authentication

I have an existing application that makes use of Cookie Authentication, and would like to add the ability to ... -core-3-1-use-both-openidconnect-and-custom-cookie-authentication...

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

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arrays - How to escape Iterated loop Python

Hey there, I recently started learning python and Since I knew a bit of JavaScript, I got a little head ... /stackoverflow.com/questions/65930228/how-to-escape-iterated-loop-python...

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

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javascript - Not able to pass string to formGroup

1.I want to loop through an array *ngFor="let item of myformNameArray" Think myformNameArray.length have 3 items ... .com/questions/65930219/not-able-to-pass-string-to-formgroup...

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

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java - What is the cause of LazyInitializationException when testing Spring Boot web app with MockMvc and AutoConfigureMockMvc

I am trying out a few examples of unit testing Spring Boot MVC from this tutorial - https://spring.io ... -the-cause-of-lazyinitializationexception-when-testing-spring-boot-web-ap...

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

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database - use variable in django DB subquery

I have been working on this but I can't seem to get there. I would like to make a query that ... https://stackoverflow.com/questions/65930162/use-variable-in-django-db-subquery...

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

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speech recognition - Real-time translation using Alibaba Cloud

Has anyone tried using Alibaba Cloud SDKs to create a real-time video call apps? As I ask the ... /stackoverflow.com/questions/65930024/real-time-translation-using-alibaba-cloud...

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

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json - Flink - importing types doesn't fix "could not find implicit value for evidence parameter of type ....TypeInformation"

In Scala Flink, no matter what I try, I keep getting an error like this: could not find implicit value ... -importing-types-doesnt-fix-could-not-find-implicit-value-for-evidence...

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

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python - Turtle Graphics: How to shift label upwards?

I am learning Python and am trying to edit the code which has the following error: Each height label is ... .com/questions/65929988/turtle-graphics-how-to-shift-label-upwards...

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

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