pipe | Concurrent , sequential , functional transformations | Functional Programming library

 by   paulbellamy Go Version: Current License: MIT

kandi X-RAY | pipe Summary

kandi X-RAY | pipe Summary

pipe is a Go library typically used in Programming Style, Functional Programming applications. pipe has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

All the usual functional ways to work with sequences of data in Go.
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            kandi-support Support

              pipe has a low active ecosystem.
              It has 22 star(s) with 2 fork(s). There are 4 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. On average issues are closed in 243 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of pipe is current.

            kandi-Quality Quality

              pipe has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              pipe is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              pipe 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 pipe and discovered the below as its top functions. This is intended to give you an instant insight into pipe implemented functionality, and help decide if they suit your requirements.
            • ZipChan returns a chan that can be used for chan .
            • DropWhileChan drops a channel from the input channel
            • ZipSlice returns a new slice of types .
            • TakeWhileChan takes an input channel and pushes it to the channel
            • DropChan drop num items
            • FlattenChan flattens an array to a single channel
            • FilterChan is a wrapper around FilterFunc that takes a function that can be used as a filter function .
            • TakeChan takes a number of items from the input channel
            • FlattenSlice flattens a slice to a slice
            • MapSlice appends a map slice to a slice .
            Get all kandi verified functions for this library.

            pipe Key Features

            No Key Features are available at this moment for pipe.

            pipe Examples and Code Snippets

            No Code Snippets are available at this moment for pipe.

            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

            Is There a Way to Cause Powershell to Use a Particular Format for a Function's Output?
            Asked 2021-Jun-15 at 18:42

            I wish to suggest (perhaps enforce, but I am not firm on the semantics yet) a particular format for the output of a PowerShell function.

            about_Format.ps1xml (versioned for PowerShell 7.1) says this: 'Beginning in PowerShell 6, the default views are defined in PowerShell source code. The Format.ps1xml files from PowerShell 5.1 and earlier versions don't exist in PowerShell 6 and later versions.'. The article then goes on to explain how Format.ps1xml files can be used to change the display of objects, etc etc. This is not very explicit: 'don't exist' -ne 'cannot exist'...

            This begs several questions:

            1. Although they 'don't exist', can Format.ps1xml files be created/used in versions of PowerShell greater than 5.1?
            2. Whether they can or not, is there some better practice for suggesting to PowerShell how a certain function should format returned data? Note that inherent in 'suggest' is that the pipeline nature of PowerShell's output must be preserved: the user must still be able to pipe the output of the function to Format-List or ForEach-Object etc..

            For example, the Get-ADUser cmdlet returns objects formatted by Format-List. If I write a function called Search-ADUser that calls Get-ADUser internally and returns some of those objects, the output will also be formatted as a list. Piping the output to Format-Table before returning it does not satisfy my requirements, because the output will then not be treated as separate objects in a pipeline.

            Example code:

            ...

            ANSWER

            Answered 2021-Jun-15 at 18:36

            Although they 'don't exist', can Format.ps1xml files be created/used in versions of PowerShell greater than 5.1?

            • Yes; in fact any third-party code must use them to define custom formatting.

              • That *.ps1xml files are invariably needed for such definitions is unfortunate; GitHub issue #7845 asks for an in-memory, API-based alternative (which for type data already exists, via the Update-TypeData cmdlet).
            • It is only the formatting data that ships with PowerShell that is now hardcoded into the PowerShell (Core) executable, presumably for performance reasons.

            is there some better practice for suggesting to PowerShell how a certain function should format returned data?

            The lack of an API-based way to define formatting data requires the following approach:

            • Determine the full name of the .NET type(s) to which the formatting should apply.

              • If it is [pscustomobject] instances that the formatting should apply to, you need to (a) choose a unique (virtual) type name and (b) assign it to the [pscustomobject] instances via PowerShell's ETS (Extended Type System); e.g.:

                • For [pscustomobject] instances created by the Select-Object cmdlet:

            Source https://stackoverflow.com/questions/67990004

            QUESTION

            How can I plot two column combinations from a df or tibble as a scatterplot in R using purrr (pipes, maps, imaps)
            Asked 2021-Jun-15 at 17:51

            I am trying to create scatter plots of all the combinations for the columns: insulin, sspg, glucose (mclust, diabetes dataset, in R) with class as the colo(u)r. By that I mean insulin with sspg, insulin with glucose and sspg with glucose.

            And I would like to do that with tidyverse, purrr, mappings and pipe operations. I can't quite get it to work, since I'm relatively new to R and functional programming.

            When I load the data I've got the columns: class, glucose, insulin and sspg. I also used pivot_longer to get the columns: attr and value but I was not able to plot it and don't know how to create the combinations.

            I assume that there will be an iwalk() or map2() function at the end and that I might have to use group_by() and nest() and maybe combn(., m=2) for the combinations or something like that. But it will probably have some way simpler solution that I can not see myself.

            My attempts have amounted to this:

            ...

            ANSWER

            Answered 2021-Jun-15 at 17:34
            library(mclust)
            #> Package 'mclust' version 5.4.7
            #> Type 'citation("mclust")' for citing this R package in publications.
            library(tidyverse)
            data("diabetes")
            

            Source https://stackoverflow.com/questions/67990027

            QUESTION

            Is it possible to "miss" the emission from an observable in this case?
            Asked 2021-Jun-15 at 12:53

            At work, we often use the following pattern to react to certain events in our application.

            ...

            ANSWER

            Answered 2021-Jun-15 at 12:19

            In general I like to use observables lazily... If you had a service which looked like:

            Source https://stackoverflow.com/questions/67983240

            QUESTION

            How to convert a pair of iterator into a view?
            Asked 2021-Jun-15 at 11:41

            I have a pair of iterator, and I would like to use ranges::views::filter(some_predicate) on it (with the pipe operator). AFAIU I should first convert my pair of iterator into a view. I tried to use ranges::subrange(first, last) to do so, but I’m getting horrible error messages.

            Note1: I’m using C++14 and range-v3 version 0.9.1 (the last version compatible with gcc-5.5). If the solution differs when using C++17/20 and/or when using C++20 std::ranges, I’m also interested to know what changed.

            Note2: I find the documentation of range-v3 severely lacking, so I’m using cppreference.com. If you know a better documentation, I’m very interested.

            EDIT:

            In my real code, I’m wrapping a java-style legacy iterator (that has a next() method instead of operator++/operator*. I’m wrapping them in a C++-compatible wrapper. Then I tried to convert that wrapper into a view, and finally filter it. I reproduce a minimal example on godbolt. This use iterator_range as suggested, but it still doesn’t compile (see the second edit below).

            ...

            ANSWER

            Answered 2021-Apr-08 at 16:24

            In ranges-v3, there is iterator_range which you can use to wrap the iterators into a range object.

            In C++20, you can use std::span to wrap those iterators into an range object

            Source https://stackoverflow.com/questions/67007908

            QUESTION

            How to drag html shapes into mxgraph canvas
            Asked 2021-Jun-15 at 11:32

            I want to drag and drop those 3 shapes into mxgraph canvas (which is the black area).

            Note: I want to fully preserve the drag element on the canvas, including shape, size, color, text, etc.

            I don't know whether insertVertex does it work. Dragging the orange,red or other box in to the dark area currently does not work.

            ...

            ANSWER

            Answered 2021-Jun-02 at 16:26

            QUESTION

            using custom command, pipe and nested quotes in docker-compose.yml
            Asked 2021-Jun-15 at 10:30

            I am using a container that allows to pass a command to be run during the entrypoint : the entrypoint does an exec $@.

            I would like to run this command to add a line at the end of the config file :

            ...

            ANSWER

            Answered 2021-Jun-10 at 08:41

            I suggest you to create a script name run.sh like this:

            Source https://stackoverflow.com/questions/67917627

            QUESTION

            Angular - stop scroll snapping to the top on subscription timer
            Asked 2021-Jun-15 at 08:26

            I have a self updating list of orders that is scrollable. This is the parent component, where list is updated on a timer of 2 minutes, setup like so:

            ...

            ANSWER

            Answered 2021-Jun-11 at 13:10

            You could try using element.scrollTop to save the position of the scrollbar and then use the saved value to set the scrollTop property to where it was when the timed function is called.

            (https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollTop?retiredLocale=it - https://www.javascripttutorial.net/dom/css/get-and-set-scroll-position-of-an-element/)

            Source https://stackoverflow.com/questions/67890780

            QUESTION

            Dangers of mixing [tidyverse] and [data.table] syntax in R?
            Asked 2021-Jun-15 at 06:35

            I'm getting some very weird behavior from mixing tidyverse and data.table syntax. For context, I often find myself using tidyverse syntax, and then adding a pipe back to data.table when I need speed vs. when I need code readability. I know Hadley's working on a new package that uses tidyverse syntax with data.table speed, but from what I see, it's still in it's nascent phases, so I haven't been using it.

            Anyone care to explain what's going on here? This is very scary for me, as I've probably done these thousands of times without thinking.

            ...

            ANSWER

            Answered 2021-Jun-15 at 06:35

            I came across the same problem on a few occasions, which led me to avoid mixing dplyr with data.table syntax, as I didn't take the time to find out the reason. So thanks for providing a MRE.

            Looks like dplyr::arrange is interfering with data.table auto-indexing :

            • index will be used when subsetting dataset with == or %in% on a single variable
            • by default if index for a variable is not present on filtering, it is automatically created and used
            • indexes are lost if you change the order of data
            • you can check if you are using index with options(datatable.verbose=TRUE)

            If we explicitely set auto-indexing :

            Source https://stackoverflow.com/questions/67940098

            QUESTION

            Errors creating a multithreaded named pipe server with Administrator only access on windows c++
            Asked 2021-Jun-15 at 04:47

            Im trying to create a multithreaded namedpipe server as outlined in the msdn sample here https://docs.microsoft.com/en-us/windows/win32/ipc/multithreaded-pipe-server but Im trying to restrict the namedpipe to access by adminstrators group members only.

            The example works correctly when no SECURITY_ATTRIBUTES structure is specified but when an SA is specified the first call is successful, but following calls to CreateNamedPipe fail as long as the first pipe is listening or communicating with a client. The create call fails, usually with ACCESS_DENIED, but sometimes with error 1305 The revision level is unknown. When the first pipe closes due to client disconnecting the following call will be successful for the next createnamedpipe call but will in turn fail once that pipe has a client.

            I have tried multiple values for the grfInheritance field with no avail. This is my first adventure into explicitly specifying SECURITY so forgive me if I have missed something obvious. Note that in the Function that calls createnamedpipe I create a new SA structure with each create attempt but I have also tried creating one and sharing it outside the create loop.

            Relevant code follows:

            function that creates the pipe:

            ...

            ANSWER

            Answered 2021-Jun-15 at 02:23

            According to Named Pipe Security and Access Rights,

            In addition to the requested access rights, the DACL must allow the calling thread FILE_CREATE_PIPE_INSTANCE access to the named pipe.

            Source https://stackoverflow.com/questions/67977950

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            You can download it from GitHub.

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