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python 3.x - BLE communication between two Raspberry Pi 4

I am collecting pressure sensor data from 4 Arduino Nano 33 ble to a raspberry pi 4. I am able ... .com/questions/65935999/ble-communication-between-two-raspberry-pi-4...

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

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328 views

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ruby on rails - Using scope (after where) in the model resets where condition

I have a very strange behavior of Rails 5.2 and ruby 2.6 A different sequence of method chaining gives ... 65936801/using-scope-after-where-in-the-model-resets-where-condition...

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

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282 views

1 answer

How to reset spinner back to default in Android?

I am developing an Android application in which I would like to display the collection of data based on the input ... /65936788/how-to-reset-spinner-back-to-default-in-android...

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

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109 views

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python - KMeans with huge number of clusters

I have a relatively big graph that has around 6000 vertices and I have to use KMeans and see what are ... //stackoverflow.com/questions/65936750/kmeans-with-huge-number-of-clusters...

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

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151 views

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java - Everything is perfect but there is something missing

Everything is perfect but there is something missing! Program error-free random works properly but I want it ... /65936716/everything-is-perfect-but-there-is-something-missing...

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

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230 views

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across equivalent in pandas python

I would like to perform function down bellow in python using preferably pandas as a part of my data ... //stackoverflow.com/questions/65936563/across-equivalent-in-pandas-python...

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

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227 views

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mysql - PHP inserting value only once

I am trying to add categories in a database. Things is the script is reading the categories from a product ... ://stackoverflow.com/questions/65936561/php-inserting-value-only-once...

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

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272 views

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.net - MySQL binding multiple parameters to a single query

I have a MySql database, and I'm connecting to it from a .Net app using Dapper. I have the following ... .com/questions/65936367/mysql-binding-multiple-parameters-to-a-single-query...

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

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532 views

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firebase - Do cloud firestore snapshot reads all the documents in the collection?

I'm creating a chat screen. What I'm currently doing is that I'm using a Streambuilder to listen to the ... /do-cloud-firestore-snapshot-reads-all-the-documents-in-the-collection...

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

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105 views

1 answer

c# - ASP.NET Core 3.1 How I can run a method from referenced project?

I have an ASP.NET Core 3.1 WebApi project as the main project and some infrastructure project referenced in the main project ... -3-1-how-i-can-run-a-method-from-referenced-project...

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

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439 views

1 answer

node.js - Cant`t insert Cyrillic symbols in POST fetch URL - NodeJS

Working on Telegram bot. A user sends requests from the bot to an external website API to get information. The ... /65936251/cantt-insert-cyrillic-symbols-in-post-fetch-url-nodejs...

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

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247 views

1 answer

angular - Variable get undefined value from return in response callback of http call

I have this function in my service which returns well the response : public refreshToken(): string { const ... -undefined-value-from-return-in-response-callback-of-http-call...

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

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212 views

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reactjs - VS Code: Show full definitions for interface

I want Visual Studio Code to show the type definitions when hovering over the functional component. When ... /questions/65936176/vs-code-show-full-definitions-for-interface...

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

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140 views

1 answer

javascript - Child component's EventEmitter "loses" parent component's observer

I have a parent component which observes child component's Output event emitter (topicsChanged). Parent ... /65936163/child-components-eventemitter-loses-parent-components-observer...

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

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4.2k views

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javascript - ERROR Error: NG0201: No provider for NgControl found in NodeInjector

i ran completly out of ideas. I want to user Reactive Forms Module, so i imported it in app.module. ... 65936059/error-error-ng0201-no-provider-for-ngcontrol-found-in-nodeinjector...

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

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76 views

1 answer

javascript - VueJs3 sending data from one component to another

I am currently working on a VueJs3 Project. I already coded a login system, which works perfectly fine. I ... /questions/65936045/vuejs3-sending-data-from-one-component-to-another...

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

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106 views

1 answer

How to use conditional-stataments as an input in a R function

I am writing a function where one of the input is a condition. See the following example sample data set ab <- ... how-to-use-conditional-stataments-as-an-input-in-a-r-function...

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

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180 views

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Why is my R dataframe not being copied in ifelse statement?

I have a dataframe tas_i with 875000 rows as below: head(tas_i) x tas year month_no 1 1 NA 1884 1 2 2 NA ... /65936028/why-is-my-r-dataframe-not-being-copied-in-ifelse-statement...

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

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231 views

1 answer

api design - Do i need to put path params in an URI if i don't use them [REST APIs]

I'm having a debate with a senior of mine at work and i want to know if what he says is true. Imagine I have a path ... -to-put-path-params-in-an-uri-if-i-dont-use-them-rest-apis...

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

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793 views

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rounding - Advanced Pie Chart wrong numbers (automatically rounded) in the legend (ngx charts)

the numbers in advanced pie chart are automatically rounded in the legend. enter image description here question ... -wrong-numbers-automatically-rounded-in-the-legend-ngx-char...

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

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317 views

1 answer

printing - Text Block/Field Block: Truncate text without word wrap

I'm currently creating a label with ZPL II. I have a field with a fixed size. Therefore I'm using the ... /questions/65936019/text-block-field-block-truncate-text-without-word-wrap...

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

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585 views

1 answer

python - Is it possible to change packagewide global variables during pytest testing?

In my project, I use a file called 'conf.py' to store several configuration variables, such as a ... -it-possible-to-change-packagewide-global-variables-during-pytest-testing...

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

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507 views

1 answer

unity3d - Unity firebase storage

i am creating a function that loads my file from local disk and uploading it onto the firebase cloud ... from:https://stackoverflow.com/questions/65937149/unity-firebase-storage...

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

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242 views

1 answer

sql - Selecting NULL values from two joined tables - not returning correct results (MySQL)

I use MySQL. I have three tables: Book, Publisher, Description. In those tables I have 2 books, 3 publishers ... null-values-from-two-joined-tables-not-returning-correct-results-my...

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

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205 views

1 answer

swift - How can l put TableView inside CollectionViewCell?

I have a tableView with several cells (created by MVVM-architecture). In ViewController I fill my ... /questions/65937087/how-can-l-put-tableview-inside-collectionviewcell...

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

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343 views

1 answer

http - CondaHTTPError while pytorch installation

I have installed Anaconda 4.2 on Windows 10. When I try to run the following command to ... https://stackoverflow.com/questions/65936969/condahttperror-while-pytorch-installation...

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

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251 views

1 answer

hungarian algorithm's graph in python

I am trying to implement hungarian algorithm in my project, but I don't understand why it gives a ... ://stackoverflow.com/questions/65936874/hungarian-algorithms-graph-in-python...

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

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334 views

1 answer

css - rows style vue-virtual-scroller not show correct

I'm using Akryum/vue-virtual-scroller plugin and I have list that each record is component and inside each ... /questions/65936851/rows-style-vue-virtual-scroller-not-show-correct...

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

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