arr | 数组增强组件主要是对数组等数据进行处理,如无限级分类操作、商品规格的迪卡尔乘积运算等。 | Math library

 by   houdunwang PHP Version: Current License: No License

kandi X-RAY | arr Summary

kandi X-RAY | arr Summary

arr is a PHP library typically used in Utilities, Math applications. arr has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

数组增强组件主要是对数组等数据进行处理,如无限级分类操作、商品规格的迪卡尔乘积运算等。
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            kandi-support Support

              arr has a low active ecosystem.
              It has 59 star(s) with 18 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 2 have been closed. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of arr is current.

            kandi-Quality Quality

              arr has no bugs reported.

            kandi-Security Security

              arr has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              arr does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              arr releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed arr and discovered the below as its top functions. This is intended to give you an instant insight into arr implemented functionality, and help decide if they suit your requirements.
            • Render a channel list
            • Generate channel list
            • Create a channel list
            • renders a channel level
            • Parent channel getter
            • Create a category .
            • Filter array by keys
            • Check if a channel is a child of a channel
            • deletes an array
            • Get a value from an array using dot notation
            Get all kandi verified functions for this library.

            arr Key Features

            No Key Features are available at this moment for arr.

            arr Examples and Code Snippets

            No Code Snippets are available at this moment for arr.

            Community Discussions

            QUESTION

            filtering multiple arrays ngrx
            Asked 2021-Jun-15 at 19:53

            I have a store setup that has multiple arrays

            I'm trying to search all arrays at once, via a textfield.

            I can get this done, by calling a selector function on keyup, that filters the 4 arrays and pushes to a new array.

            I've thought about merging all the arrays to one array before filtering, but I want to keep the results separate, as they are going to be displayed in categories.

            Just trying to see if I can streamline the performance at all and if there's a more concise way of doing this, in case I need to do something similar with larger arrays.

            my textField function:

            ...

            ANSWER

            Answered 2021-Jun-15 at 19:16

            This should implement the selector function with less code and make it more adaptable to kinds of data, if needed you can specify a more precise type in the filter function.

            Source https://stackoverflow.com/questions/67991722

            QUESTION

            Recursion with lists vs Recursion with strings in Python
            Asked 2021-Jun-15 at 19:20

            When I use the following code to print all subsets of the string "abc", the code works as expected, printing : ab a b

            ...

            ANSWER

            Answered 2021-Jun-15 at 19:20

            array.append() is a function that returns a None value. So in the first recursive call, you pass a None value instead of the appended array as you'd want. Here's a solution:

            Source https://stackoverflow.com/questions/67992210

            QUESTION

            Implement barrier with pthreads on C
            Asked 2021-Jun-15 at 18:32

            I'm trying to parallelize a merge-sort algorithm. What I'm doing is dividing the input array for each thread, then merging the threads results. The way I'm trying to merge the results is something like this:

            ...

            ANSWER

            Answered 2021-Jun-15 at 01:58

            I'm trying to parallelize a merge-sort algorithm. What I'm doing is dividing the input array for each thread, then merging the threads results.

            Ok, but yours is an unnecessarily difficult approach. At each step of the merge process, you want half of your threads to wait for the other half to finish, and the most natural way for one thread to wait for another to finish is to use pthread_join(). If you wanted all of your threads to continue with more work after synchronizing then that would be different, but in this case, those that are not responsible for any more merges have nothing at all left to do.

            This is what I've tried:

            Source https://stackoverflow.com/questions/67977544

            QUESTION

            List comprehension to get a 2D list of the same values
            Asked 2021-Jun-15 at 18:09

            I have the following digits:

            ...

            ANSWER

            Answered 2021-Jun-15 at 18:03

            You can create temporary dictionary to group the digits:

            Source https://stackoverflow.com/questions/67991351

            QUESTION

            @types - array of values to object keys
            Asked 2021-Jun-15 at 16:52

            Let's say I have a list of strings

            ...

            ANSWER

            Answered 2021-Jun-15 at 16:52

            You can make use of the as const TypeScript syntax (See doc).

            Source https://stackoverflow.com/questions/67989669

            QUESTION

            How to pass multiple inputs into a single query?
            Asked 2021-Jun-15 at 15:01

            In my app I want the user to mention how many columns he wants for the table and then enter the data for those columns and create a table with those values. Here is what I have:

            ...

            ANSWER

            Answered 2021-Jun-15 at 15:01

            You can name your input-fields as an array like: And get it with var_dump($_POST['col_name']);

            In your example you could do like this:

            Source https://stackoverflow.com/questions/67988425

            QUESTION

            Split Function - divide cell by string
            Asked 2021-Jun-15 at 15:00

            I am trying to divide merged information from one cell into separate cells.

            one cell:

            amount:2 price:253,18 price2:59,24 EU status:WBB NAS MRR OWA PXA min:1 opt:3 category: PNE code z:195750

            divided data: (I want to export each part into another cell)

            amount:2 price:253,18 price2:59,24 EU status:WBB NAS MRR OWA PXA min:1 opt:3 category: PNE code z:195750

            I can't simply divide by finding empty space, status cell which is case-sensitive | status:WBB NAS MRR OWA PXA| has a different data range with spaces that can't be divided.

            Split ( expression [,delimiter] [,limit] [,compare] )

            ...

            ANSWER

            Answered 2021-May-24 at 11:44

            As the order is the same one way is to simply search for adjacent key names & parse out whats in-between:

            Source https://stackoverflow.com/questions/67670930

            QUESTION

            Filter a js array of object based on 2 conditions
            Asked 2021-Jun-15 at 13:17

            I have an array of objects. I want to keep the objects with ID: 0 but remove the duplicates from the array where id > 0.

            ...

            ANSWER

            Answered 2021-Jun-15 at 13:15

            You can use the filter and Set to achieve the desired result.

            It is the efficient solution because it takes only one iteration of arr to get the desired result and takes constant time to add and has to add and check if the id exist.

            Source https://stackoverflow.com/questions/67986808

            QUESTION

            numpy follow a self-indexing list without loops
            Asked 2021-Jun-15 at 12:46

            I have a list [A,B,C,D,E] and a list of indexes [3,2,0,4,1] but the indexes actually points to itself, giving the order to follow.

            So starting at 0, next index is 3, then at index 3, the next index is 4,1,2,0 etc.

            I can achieve this by looping and updating the index, but my list may have thousands of points, Is there a way to avoid loops and vectorize this?

            my code:

            ...

            ANSWER

            Answered 2021-Jun-15 at 12:46

            What you're trying to do looks to me like a depth first search in the graph where each node is a number from 0 to n-1 (n = 5 in your example) with a single outgoing edge to the next index it points to. The python solution is already pretty efficient, but if you want something pre-made I think scipy has the solution:

            Source https://stackoverflow.com/questions/67981717

            QUESTION

            error segmentation fault in dynamic array
            Asked 2021-Jun-15 at 11:51

            I am solving this problem on dynamic array in which input first line contains two space-separated integers,n, the size of arr to create, and q, the number of queries, respectively. Each of the q subsequent lines contains a query string,queries[i]. it expects to return int[]: the results of each type 2 query in the order they are presented.

            i tried to attempt as below and my code seems fine to me but it gives segmentation fault error. please help me where I am getting conceptually wrong. thanks.

            problem: Declare a 2-dimensional array,arr , of n empty arrays. All arrays are zero indexed. Declare an integer,last answer , and initialize it to zero.

            There are 2 types of queries, given as an array of strings for you to parse:

            Query: 1 x y

            Let idx=((queries[i][1]^last_answer)%n);. Append the integer y to arr[idx].

            Query: 2 x y

            Let idx=((queries[i][1]^last_answer)%n);. Assign last_answer=arr[idx][queries[i][2]%(arr[idx].size())] . Store the new value of last_answer to an answers array.

            input: 2 5

            1 0 5

            1 1 7

            1 0 3

            2 1 0

            2 1 1

            output:

            7

            3

            ...

            ANSWER

            Answered 2021-Jun-15 at 11:25

            You are accessing elements of vector without allocating them.

            resize() is useful to allocate elements.

            Source https://stackoverflow.com/questions/67985309

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install arr

            You can download it from GitHub.
            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.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            https://github.com/houdunwang/arr.git

          • CLI

            gh repo clone houdunwang/arr

          • sshUrl

            git@github.com:houdunwang/arr.git

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