Tree | flexible tree data structure for php and a fluent tree | Dataset library
kandi X-RAY | Tree Summary
kandi X-RAY | Tree Summary
In Tree you can find a basic but flexible tree data structure for php together with and an handful Builder class, that enables you to build tree in a fluent way.
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Top functions reviewed by kandi - BETA
- Visit a node .
- Get the maximum height of the tree .
- Remove a child .
- Returns the list of neighbors .
- Returns all parents of this node .
- Set a node .
- Add a leaf node .
- Set leafs .
- Create a tree node .
Tree Key Features
Tree Examples and Code Snippets
Community Discussions
Trending Discussions on Tree
QUESTION
This question is about two MAUI controls (Switch
and ListView
) - I'm asking about them both in the same question as I'm expecting the root cause of the problem to be the same for both controls. It's entirely possible that they're different problems that just share some common symptoms though. (CollectionView
has similar issues, but other confounding factors that make it trickier to demonstrate.)
I'm using 2-way data binding in my MAUI app: changes to the data can either come directly from the user, or from a background polling task that checks whether the canonical data has been changed elsewhere. The problem I'm facing is that changes to the view model are not visually propagated to the Switch.IsToggled
and ListView.SelectedItem
properties, even though the controls do raise events showing that they've "noticed" the property changes. Other controls (e.g. Label
and Checkbox
) are visually updated, indicating that the view model notification is working fine and the UI itself is generally healthy.
Build environment: Visual Studio 2022 17.2.0 preview 2.1
App environment: Android, either emulator "Pixel 5 - API 30" or a real Pixel 6
The sample code is all below, but the fundamental question is whether this a bug somewhere in my code (do I need to "tell" the controls to update themselves for some reason?) or possibly a bug in MAUI (in which case I should presumably report it)?
Sample codeThe sample code below can be added directly a "File new project" MAUI app (with a name of "MauiPlayground" to use the same namespaces), or it's all available from my demo code repo. Each example is independent of the other - you can try just one. (Then update App.cs
to set MainPage
to the right example.)
Both examples have a very simple situation: a control with two-way binding to a view-model, and a button that updates the view-model property (to simulate "the data has been modified elsewhere" in the real app). In both cases, the control remains unchanged visually.
Note that I've specified {Binding ..., Mode=TwoWay}
in both cases, even though that's the default for those properties, just to be super-clear that that isn't the problem.
The ViewModelBase
code is shared by both examples, and is simply a convenient way of raising INotifyPropertyChanged.PropertyChanged
without any extra dependencies:
ViewModelBase.cs:
...ANSWER
Answered 2022-Apr-09 at 18:07These both may be bugs with the currently released version of MAUI.
This bug was recently posted and there is already a fix for the Switch to address this issue.
QUESTION
You can see my sample project here: https://github.com/DanKaplanSES/typescript-stub-examples/tree/JavaScript-import-invalid
I have created this file called main.ts:
...ANSWER
Answered 2021-Sep-26 at 13:34Your issue is related to interoperability between TypeScript/ECMAScript modules and CommonJS.
When it comes to the differences between ECMAScript modules and CommonJS modules:
- CommonJS modules are meant to be imported like
const library = require('library')
which allows to retrieve the fullexports
object of that library. There is no notion of default import in CommonJS - ECMAScript modules have explicit
export
clauses for every exported item. They also feature a default import syntax which allows to retrieve thedefault
export in a local variable.
In order to implement interoperability between CommonJS modules and TypeScript's default import syntax, CommonJS modules can have a default
property.
That default
property can even be added automatically by TypeScript when esModuleInterop
is enabled (which also enables allowSyntheticDefaultImports
). This option adds this helper function at transpilation time:
QUESTION
Below is the code. I understand applicative, functor, traversable and monad to a certain extent. The iterator and yield types, and yield functions are what I struggle understanding the most. For example, what are i o r in Iterator and i o r a in Yield? what does traverseY do exactly and what do the signatures mean? and How Monad Cont is applied here also confuses me a lot. Thank you for reading, any input would be appreciated.
...ANSWER
Answered 2022-Mar-27 at 09:13An Iterator i o r
represents a process that repeatedly takes a value of type i
and outputs a value of type o
, eventually breaking the iteration after one of the i
s by returning a r
instead. E.g.
QUESTION
I have newly installed
...ANSWER
Answered 2021-Jul-28 at 07:22You are running the project via Java 1.8 and add the --add-opens
option to the runner. However Java 1.8 does not support it.
So, the first option is to use Java 11 to run the project, as Java 11 can recognize this VM option.
Another solution is to find a place where --add-opens
is added and remove it.
Check Run configuration in IntelliJ IDEA (VM options field) and Maven/Gradle configuration files for argLine
(Maven) and jvmArgs
(Gradle)
QUESTION
I'm using React Router v6 and am creating private routes for my application.
In file PrivateRoute.js, I've the code
...ANSWER
Answered 2021-Nov-12 at 21:20I ran into the same issue today and came up with the following solution based on this very helpful article by Andrew Luca
In PrivateRoute.js:
QUESTION
It has been almost a year since I saw Jonathan Worthington presenting the new RakuAST in the YouTube video A Raku API to Raku programs the journey so far from TRC 2021. In the video, he showed that we could dump this new RakuAST using RAKUDO_RAKUAST=1
like this:
ANSWER
Answered 2022-Mar-08 at 11:46You need to checkout and build the rakuast
branch of Rakudo. The RakuAST work is still very much in progress, and has not landed in the main branch let.
QUESTION
I have an array of positive integers. For example:
...ANSWER
Answered 2022-Feb-27 at 22:44This problem has a fun O(n) solution.
If you draw a graph of cumulative sum vs index, then:
The average value in the subarray between any two indexes is the slope of the line between those points on the graph.
The first highest-average-prefix will end at the point that makes the highest angle from 0. The next highest-average-prefix must then have a smaller average, and it will end at the point that makes the highest angle from the first ending. Continuing to the end of the array, we find that...
These segments of highest average are exactly the segments in the upper convex hull of the cumulative sum graph.
Find these segments using the monotone chain algorithm. Since the points are already sorted, it takes O(n) time.
QUESTION
I am trying to use tailwindCSS in a ReactJS app
These are the scripts commands in package.json
file
ANSWER
Answered 2021-Dec-18 at 22:00It looks like the Tailwind configuration from CRACO is not needed anymore.
https://github.com/facebook/create-react-app/issues/11771#issuecomment-997217680
Look at Tailwind 3.0 install steps: https://tailwindcss.com/docs/guides/create-react-app
QUESTION
ANSWER
Answered 2021-Nov-20 at 11:40Ensure that you are running the latest version of Flipper (0.120.0 as of this message) and then:
For Android:
- Bump the
FLIPPER_VERSION
variable inandroid/gradle.properties
, for example:FLIPPER_VERSION=0.120.0
. - Run
./gradlew clean
in the android directory.
For iOS:
- Call
use_flipper
with a specific version inios/Podfile
, for example:use_flipper!({ 'Flipper' => '0.120.0' })
. - Run pod install in the ios directory.
Reference: https://fbflipper.com/docs/getting-started/react-native/#using-the-latest-flipper-sdk
QUESTION
Problem
While using Storybook, I am running npm run storybook
and getting the error below.
ANSWER
Answered 2021-Jul-29 at 17:17Solution
After taking a step back, I realized that I could try out what I did to fix the sass-loader
issue: downgrading major versions.
Steps
- Downgraded
style-loader
1 major version to2.0.0
:npm i style-loader@2.0.0
- Then, as luck would have it, I ran into the same issue with
css-loader
- Downgraded
css-loader
1 major version to5.2.7
:npm i css-loader@5.2.7
Summary
By downgrading all of the loaders one major version, I was able to get it to work.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Tree
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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