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154 views

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viola jones - threshold to determine Haar Feature

I try now to understand the Viola-Jones algorithm and I get confused about the threshold to determine ... /stackoverflow.com/questions/65877139/threshold-to-determine-haar-feature...

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

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287 views

1 answer

scripting - PowerShell script to open a new PowerShell window and run command

I'm looking for a way to write a script which is able to open a new PowerShell window and to run command ... /powershell-script-to-open-a-new-powershell-window-and-run-command...

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

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1.4k views

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pine script - How to learn volume changes sec by sec in a 1min candle at pinescript?

i am very new to pinescript. I have a very simple question. I am watching 1min charts. The volume of 1mins charts ... learn-volume-changes-sec-by-sec-in-a-1min-candle-at-pinescript...

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

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89 views

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node.js - What is the problem in this script when I want to upload an image?

What is the problem in this script? When I want to upload an image I found this problem: Error: ENOENT: no such file ... -the-problem-in-this-script-when-i-want-to-upload-an-image...

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

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287 views

1 answer

css - How to enable horizontal scrolling with keyboard keys?

I bought Plexar theme on envato. It's an HTML theme based on Bulma, that I'm using for a personal ... .com/questions/65876884/how-to-enable-horizontal-scrolling-with-keyboard-keys...

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

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156 views

1 answer

javascript - Access html response payload in chrome console

I am trying to access the 'successURL' element of a response payload in chrome console, but cannot work ... .com/questions/65876879/access-html-response-payload-in-chrome-console...

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

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1.1k views

1 answer

Nginx peer closed connection in SSL handshake while SSL handshaking

I got this error message when configured SSL in nginx. *15 peer closed connection in SSL handshake while SSL ... nginx-peer-closed-connection-in-ssl-handshake-while-ssl-handshaking...

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

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385 views

1 answer

wordpress - How do I get a Docker container that's requesting urls from itself to go via reverse proxy?

I am trying to fix "Failed to connect to myexample.com port 443: Connection refused". I think this is what's ... a-docker-container-thats-requesting-urls-from-itself-to-go-via-rev...

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

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417 views

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mongodb - When using MongoStat, how do you correctly format the connection string?

I am trying to use MongoStat to monitor my database deployment. Below is the command I'm using to try and ... when-using-mongostat-how-do-you-correctly-format-the-connection-string...

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

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193 views

1 answer

swift - Is reflection on Metatype?

While it's possible to get a list of properties from an instance: it requires an instance which is ... :https://stackoverflow.com/questions/65876670/is-reflection-on-metatype...

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

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107 views

1 answer

How can I add an active class when a button is clicked in ReactJS

What i want to acheive is to have an active class when a link is clicked. I'm using react This is the pagination. ... can-i-add-an-active-class-when-a-button-is-clicked-in-reactjs...

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

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239 views

1 answer

Loop for doing multiple correlations on dataset in R

I have a dataset with x number of columns, consisting of groups of test results, for example test1_1, test1_2 ... /65876618/loop-for-doing-multiple-correlations-on-dataset-in-r...

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

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343 views

1 answer

javascript - React - When using Hooks, I get an error - Object is not iterable (cannot read property Symbol (Symbol.iterator))

I use hooks inside the LessonThemes component, using the context, I try to access the color value inside the Test component ... -i-get-an-error-object-is-not-iterable-cannot-read-p...

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

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434 views

1 answer

ruby on rails - Wicked pdf not showing images in action mailer

I want to show a header image in the attached pdf. I'm using the wicked_pdf_asset_pack_path ... ] EstimationMailer#new_estimation_email: processed outbound mail in 1566.9ms...

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

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247 views

1 answer

forms - Django validation steps process

So, I would like to create a validation process of a post between multiple users. Let say for ... https://stackoverflow.com/questions/65876482/django-validation-steps-process...

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

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533 views

1 answer

flutter - Setstate into onpressed floatingactionbutton is not performing any changes

The following code is not updating the status of the counter. If I choose to use a function ... 65876456/setstate-into-onpressed-floatingactionbutton-is-not-performing-any-changes...

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

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488 views

1 answer

In Elixir/Ecto, how do I change the default value of an existing naive_datetime field to now in a given timezone?

Suppose I have this schema: schema "events" do field :start, :naive_datetime end I'd like to set the default value ... -do-i-change-the-default-value-of-an-existing-naive-datetime...

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

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291 views

1 answer

java - Jedis keyspace notification event for "set" not working

So im trying to implement basic listener for when some value is set on redis, but when i set some ... com/questions/65876425/jedis-keyspace-notification-event-for-set-not-working...

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

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239 views

1 answer

html - Dynamically adding active class to a dynamically built nav menu line item using JavaSCript

I would like to dynamically add an 'active' class to the navigation menu link when it is clicked using addEventListener ... -class-to-a-dynamically-built-nav-menu-line-item-using...

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

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589 views

1 answer

Audio is choppy on iOS Simulator running flutter package audioplayers

I am running the flutter package audioplayers, and whenever I move the app to the background, the audio ... audio-is-choppy-on-ios-simulator-running-flutter-package-audioplayers...

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

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196 views

1 answer

Parse string in C with sscanf

The string I am trying to parse is called str1, and it contains PRETTY_NAME="Ubuntu 20.04.1 LTS" The goal ... ://stackoverflow.com/questions/65877418/parse-string-in-c-with-sscanf...

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

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201 views

1 answer

Stream over a list to feed other lists in java

I have List<EmployeeDetails> which contains total list of employees among the organization. EmployeeDetails.java private String name ... -over-a-list-to-feed-other-lists-in-java...

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

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100 views

1 answer

python - Kivy Date Countdown

Let's say there is an event on 25th of September 2030. Is there a way to create a countdown that ... question from:https://stackoverflow.com/questions/65877344/kivy-date-countdown...

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

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128 views

1 answer

excel - Update Table column fields from another table

I have a excel tracker (let's call it 'Master File_1') that I need to send to my team, have ... /stackoverflow.com/questions/65877339/update-table-column-fields-from-another-table...

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

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233 views

1 answer

python - Getting All Duplicate Entries Using Peewee

Right now I have a ban record stored using peewee. (Using SQLite via python) Right now I'm ... /stackoverflow.com/questions/65877312/getting-all-duplicate-entries-using-peewee...

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

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280 views

1 answer

c# - Determine if a class implements a generic interface and then call a the interfaces method

I am trying to implement an interface: IListDto<TListDto> And in my data repository, examine to see if a class ... class-implements-a-generic-interface-and-then-call-a-the-interfac...

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

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305 views

1 answer

python - AttributeError: 'dict' object has no attribute 'T' (T for transposition)

I am using the qndiag library to try to find a diagonalisation for 2 given matrices. The github is here ... /attributeerror-dict-object-has-no-attribute-t-t-for-transposition...

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

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157 views

1 answer

r - Naming three ways to convert values from one column given values of another

dataset: # A tibble: 15 x 4 # Groups: id [3] id y2010 y2019 pland <chr> <int> <int> <dbl> 1 ... /naming-three-ways-to-convert-values-from-one-column-given-values-of-another...

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

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