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python - How do you move a turtle horizontally without changing it's heading?

[Gravity Code][1] I am making a game called Gravity code. And when the turtle catches falling "code", I ... /how-do-you-move-a-turtle-horizontally-without-changing-its-heading...

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

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php - How To Assign Value On Each Element In Array?

So, basically I have this array data: $data = ['one', 'two', 'three']; Now, I want to assign a ... stackoverflow.com/questions/65680098/how-to-assign-value-on-each-element-in-array...

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

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javascript - How can I pass a parameter to callback function which is inside map function

I am a new learner of JS, there is a function like this const generateNum = (array, key) => { return array ... -i-pass-a-parameter-to-callback-function-which-is-inside-map-function...

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

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implement a method in java to check correctness

i have an assessment here,and i provided a solution but when i run the code,the result is weird. Here is ... .com/questions/65832198/implement-a-method-in-java-to-check-correctness...

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

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Retrieve value from tuple by giving number or letter in Haskell

I am very new to Haskell and am trying to retrieve 'a' if I give 0, 'b' if I give 1 and so ... /questions/65904330/retrieve-value-from-tuple-by-giving-number-or-letter-in-haskell...

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

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Having a issue with shopify resizing image from liquid file

Hello I'm trying to edit an image make it smaller or custom size but not familiar with liquid. Thank you ... /65649462/having-a-issue-with-shopify-resizing-image-from-liquid-file...

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

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python - Reformating a variable in multiple steps /operations and over multiple lines. Is there a best practice/clean code way to do this?

Here is something I have been wondering about for quite some time. Please consider the following code in Python ... variable-in-multiple-steps-operations-and-over-multiple-lines-is...

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

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python - Sum lists of lists

Taking the following lists matrix1 = [[1, 1], [2, 3]] matrix2 = [[1, 1], [2, 3]] How does ... tolist() question from:https://stackoverflow.com/questions/65891008/sum-lists-of-lists...

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

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swift - Create Cocoa application without NSMenu

I'd like to create an application that pops up dialogs based on system events. However, this ... /stackoverflow.com/questions/65946048/create-cocoa-application-without-nsmenu...

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

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html - what is the difference of button with class?

Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. question ... questions/65931594/what-is-the-difference-of-button-with-class...

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

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apache - Proxy not redirecting

I have the following Apache config file. When someone types in http://mywebsite.com it is not ... from:https://stackoverflow.com/questions/65650325/proxy-not-redirecting...

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

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foreach - How to pass parent key to child in nested *ngFor angular

I need to pass the key of parent loop to another array. But it is not working . Below is my code <div * ... /65845348/how-to-pass-parent-key-to-child-in-nested-ngfor-angular...

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

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sql - Pass a Variable from a Powershell Script to SQLPlus

I'm trying to pass a variable from my Powershell Script to SQLPlus. I've defined my variable as $csvStorage ... /65672032/pass-a-variable-from-a-powershell-script-to-sqlplus...

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

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Multiple regex matches in Powershell - Output with Add-Content in the same line

I have some TXT files that have two rows with content I want to match and Add to another file: I'm using ... -regex-matches-in-powershell-output-with-add-content-in-the-same-line...

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

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How to reorder raw image color data to achieve a specific 2 by 2 format from four images? (C++)

I have the raw color data for four images, let's call them 1, 2, 3, and 4. I am storing the data in an ... -raw-image-color-data-to-achieve-a-specific-2-by-2-format-from-fou...

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

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Flutter - TextFormField Crash App When Want to Change Initial Value

I want to change my initial value from text form field... when i try to edit my initial value my ... /65559641/flutter-textformfield-crash-app-when-want-to-change-initial-value...

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

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reactjs - How do I pass parameters in a function with useState?

How do I pass parameters in a function with useState? const [count, setCount] = useState(0); const addNumber = ( ... /65903646/how-do-i-pass-parameters-in-a-function-with-usestate...

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

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Is there a way to subset txt data in unix?

I have a txt file that looks like this Before I would like to select rows with the "score" column greater than 100 ... /questions/65913713/is-there-a-way-to-subset-txt-data-in-unix...

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

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node.js - Use or together with and operators in mongoose

I'm trying to filter using multiple items in a nested object in mongoose. The model is like this: { name: ... .com/questions/65851600/use-or-together-with-and-operators-in-mongoose...

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

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python - How can I located element in selenium using the following element?

I am trying to find the following element in selenium It is a user name input field and I use: loginLink = ... /how-can-i-located-element-in-selenium-using-the-following-element...

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

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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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java - What is IndexOutOfBoundsException? How can I fix it?

This question already has answers here: question from:https://stackoverflow.com/questions/65843684/multidimensional-array-lists-in-java...

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

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dart - Is there any Validator in TextFormField in Flutter?

class EmailITextField extends StatelessWidget { final String hintText; final IconData icon; final ValueChanged<String> ... /is-there-any-validator-in-textformfield-in-flutter...

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

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flutter - HTTP.get() hangs up

import 'package:http/http.dart'; import 'model_post.dart'; class PostService { Future<List<Post>> getPosts() ... :https://stackoverflow.com/questions/65889810/http-get-hangs-up...

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

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python - Argmax - differentiate between array having same values and array having largest zeroth component

I am implementing the argmax function form numpy library to get the index of the largest element in a ... differentiate-between-array-having-same-values-and-array-having-largest...

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

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loops - How to concatenate first row with each remaining rows and second row with below each remaining rows for 7 cycles in Python?

I've been messing around with a few different solutions for how to concatenate Iterate 1st row with each row until ... first-row-with-each-remaining-rows-and-second-row-with-below...

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

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python - Loop through rows of dataframe at specific row values

My dataframe contains three different replications for each treatment. I want to loop through both, so I want to ... /65852725/loop-through-rows-of-dataframe-at-specific-row-values...

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

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How can I group categorical variable that also meets another criteria in R? DPLYR?

I have a task that I can't solve. My goal is to be able to figure out how many "families" have children ... -i-group-categorical-variable-that-also-meets-another-criteria-in-r-dply...

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

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