formal | Elegant form management primitives for the react hooks era | Frontend Utils library

 by   elkevinwolf JavaScript Version: v0.1.3 License: MIT

kandi X-RAY | formal Summary

kandi X-RAY | formal Summary

formal is a JavaScript library typically used in User Interface, Frontend Utils, React Native, React applications. formal has no bugs, it has no vulnerabilities, it has a Permissive License and it has medium support. You can download it from GitHub.

Elegant form management primitivesfor the react hooks era.
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              formal has a medium active ecosystem.
              It has 1079 star(s) with 43 fork(s). There are 11 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 30 open issues and 22 have been closed. On average issues are closed in 15 days. There are 21 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of formal is v0.1.3

            kandi-Quality Quality

              formal has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              formal 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

              formal releases are available to install and integrate.

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            formal Key Features

            No Key Features are available at this moment for formal.

            formal Examples and Code Snippets

            Split a computation into multiple tensors .
            pythondot img1Lines of Code : 411dot img1License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def split_compile_and_replicate(
                computation: Callable[..., Any],
                inputs: Optional[List[List[core_types.Tensor]]] = None,
                infeed_queue: Optional[tpu_feed.InfeedQueue] = None,
                device_assignment: Optional[device_assignment_lib.DeviceAss  
            Decorate a function .
            pythondot img2Lines of Code : 402dot img2License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def function(func=None,
                         input_signature=None,
                         autograph=True,
                         jit_compile=None,
                         reduce_retracing=False,
                         experimental_implements=None,
                         experimental_autograph_options=None,
               
            Replicate the given computation .
            pythondot img3Lines of Code : 105dot img3License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def replicate(
                computation: Callable[..., Any],
                inputs: Optional[List[List[core_types.Tensor]]] = None,
                infeed_queue: Optional[tpu_feed.InfeedQueue] = None,
                device_assignment: Optional[device_assignment_lib.DeviceAssignment] = None,
               

            Community Discussions

            QUESTION

            How to find maximum sum of smallest and second smallest elements chosen from all possible subarrays
            Asked 2021-Jun-12 at 12:16

            Given an array, find maximum sum of smallest and second smallest elements chosen from all possible subarrays. More formally, if we write all (nC2) subarrays of array of size >=2 and find the sum of smallest and second smallest, then our answer will be maximum sum among them.

            ...

            ANSWER

            Answered 2021-Jun-12 at 11:42

            The question is: Why are we guaranteed to always find the maximum sum if we only look at all subarrays of length two?

            To answer that question, lets assume we have some array A. Inside that array, obviously, there has to be at least one subarray S for which the smallest and second smallest elements, let's call them X and Y, sum up to our result.

            If these two elements are already next to each other, this means that there is a subarray of A of length two that will contain X and Y, and thus, if we only look at all the subarrays of length two, we will find X and Y and output X+Y.

            However, the question is: Is there any way for our two elements X and Y to not be "neighbors" in S? Well, if this was the case, there obviously would need to be other numbers, lets call them Z0, Z1, ..., between them.

            Obviously, for all these values, it would have to hold that Zi >= X and Zi >= Y, because in S, X and Y are the smallest and second smallest elements, so there can be no other numbers smaller than X or Y.

            If any of the Zi were bigger than X or Y, this would mean that there would be a subarray of A that only included this bigger Zi plus its neighbor. In this subarray, Zi and its neighbor would be the smallest and second smallest elements, and they would sum up to a larger sum than X+Y, so our subarray S would not have been the subarray giving us our solution. This is a contradiction to our definition of S, so this can not happen.

            So, all the Zi can not be smaller than X or Y, and they can not be bigger than X or Y. This only leaves one possibility: For X == Y, they could all be equal. But, in this case, we obviously also have a subarray of length 2 that sums up to our correct result.

            So, in all cases, we can show that there has to be a subarray of length two where both elements sum up to our result, which is why the algorithm is correct.

            Source https://stackoverflow.com/questions/67948134

            QUESTION

            Prioritization on ReentrantLock's Condition
            Asked 2021-Jun-11 at 22:26

            Problem: I have a set of Threads some of which must take a priority to other in acquiring ReentrantLock.

            The solution: I can imagine to have a fair ReentrantLock with 2 Condition queues: lowPriority and highPriority. The point is highPriority is signalled before lowPriority. Taking into account fairness of ReentrantLock it must happen that Threads blocked in highPriority always go ahead of Threads blocked on lowPriority.

            Implementation:

            ...

            ANSWER

            Answered 2021-Jun-11 at 22:26

            As I understand, for code

            Source https://stackoverflow.com/questions/67927144

            QUESTION

            What are the various ways code may be 'vectorized'?
            Asked 2021-Jun-10 at 20:43

            I usually hear the term vectorized functions in one of two ways:

            • In a very high-level language when the data is passed all-at-once (or at least, in bulk chunks) to a lower-level library that does the calculations in faster way. An example of this would be python's use of numpy for array/LA-related stuff.
            • At the lowest level, when using a specific machine instruction or procedure that makes heavy use of them (such as YMM, ZMM, XMM register instructions).

            However, it seems like the term is passed around quite generally, and I wanted to know if there's a third (or even more) ways in which it's used. And this would just be, for example, passing multiple values to a function rather than one (usually done via an array) for example:

            ...

            ANSWER

            Answered 2021-Jun-10 at 20:43

            Vectorized code, in the context you seem to be referring to, normally means "an implementation that happens to make use of Single Instruction Multiple Data (SIMD) hardware instructions".

            This can sometimes mean that someone manually wrote a version of a function that is equivalent to the canonical one, but happens to make use of SIMD. More often than not, it's something that the compiler does under the hood as part of its optimization passes.

            In a very high-level language when the data is passed all-at-once (or at least, in bulk chunks) to a lower-level library that does the calculations in faster way. An example of this would be python's use of numpy for array/LA-related stuff.

            That's simply not correct. The process of handing off a big chunk of data to some block of code that goes through it quickly is not vectorization in of itself.

            You could say "Now that my code uses numpy, it's vectorized" and be sort of correct, but only transitively. A better way to put it would be "Now that my code uses numpy, it runs a lot faster because numpy is vectorized under the hood.". Importantly though, not all fast libraries to which big chunks of data are passed at once are vectorized.

            ...Code examples...

            Since there is no SIMD instruction in sight in either example, then neither are vectorized yet. It might be true that the second version is more likely to lead to a vectorized program. If that's the case, then we'd say that the program is more vectorizable than the first. However, the program is not vectorized until the compiler makes it so.

            Source https://stackoverflow.com/questions/67926764

            QUESTION

            Laravel: Array to String
            Asked 2021-Jun-09 at 10:15

            It is my code in which I get the subcategories' names. But the problem is it shows data in an array form.

            ...

            ANSWER

            Answered 2021-Jun-07 at 14:05

            Laravel collections can be imploded easily:

            Source https://stackoverflow.com/questions/67873092

            QUESTION

            How to make deeply nested function call polymorphic?
            Asked 2021-Jun-07 at 20:01

            So I have a custom programming language, and in it I am doing some math formalization/modeling. In this instance I am doing basically this (a pseudo-javascript representation):

            ...

            ANSWER

            Answered 2021-Jun-07 at 20:01

            Haskell leverages its type and type-class system to deal with polymorphic equality.

            The relevant code is

            Source https://stackoverflow.com/questions/67846511

            QUESTION

            `eval` declaration instantiation when calling context is evaluating formal parameter initializers
            Asked 2021-Jun-06 at 05:49

            The note below the PerformEval abstract operation says:

            The eval code cannot instantiate variable or function bindings in the variable environment of the calling context that invoked the eval if the calling context is evaluating formal parameter initializers or if either the code of the calling context or the eval code is strict mode code. Instead such bindings are instantiated in a new VariableEnvironment that is only accessible to the eval code. Bindings introduced by let, const, or class declarations are always instantiated in a new LexicalEnvironment.

            Question:

            What is meant by "if the calling context is evaluating formal parameter initializers"? What is a "parameter initializer"?

            There is only one other reference to the term "parameter initializer" in the spec in Note 3 of 9.2.10. This note says:

            Parameter Initializers may contain direct eval expressions. Any top level declarations of such evals are only visible to the eval code (10.2). The creation of the environment for such declarations is described in 14.1.22.

            I interpreted this as meaning that if a parameter initializer expression contains an eval call, then any variables created inside that eval call are not instantiated in the parameter scope. So, in the example below, I was expecting a ReferenceError to be thrown since c shouldn't be instantiated in the parameter scope:

            ...

            ANSWER

            Answered 2021-Jun-06 at 05:49

            Turns out you found a specification bug! I asked in TC39's Matrix chat and they've created a PR to remove this note:

            https://github.com/tc39/ecma262/pull/2428

            The behavior in the note used to be correct, but was removed in 2017 in https://github.com/tc39/ecma262/pull/1046

            Source https://stackoverflow.com/questions/67855714

            QUESTION

            Cost function of a dynamic solution to the "longest increasing subsequence" problem
            Asked 2021-Jun-04 at 02:57

            So I have a pretty simple dynamic programming solution to the "longest increasing subsequence" problem (find the longest subsequence of increasing elements in a given sequence, for instance for [1, 7, 2, 6, 4] it would be [1, 2, 4]), which can also find the actual subsequence (as opposed to just lenght):

            ...

            ANSWER

            Answered 2021-Jun-04 at 02:57

            You are looking for a recursive formulation of the overlapping subproblems in your dynamic programming solution.

            Let LONGEST(S,x) be the longest increasing subsequence of the first x characters of the sequence S. The solution to the problem is then LONGEST(S,|S|).

            Recursively (using 1-based indexing):

            Source https://stackoverflow.com/questions/67827601

            QUESTION

            base::formals with multiple-option arguments [R]
            Asked 2021-Jun-03 at 14:58

            I trying to extract all arguments and their default options from a function (randomForestSRC::rfsrc) to integrate it within another function. This is what I'm doing:

            ...

            ANSWER

            Answered 2021-Jun-03 at 14:58

            This will let you alter the defaults of the two parameters you sought to set at 500 and 333 in a new function with the same environment as the original rfsrc. (You can do it in the original function, but that seems more dangerous.)

            Source https://stackoverflow.com/questions/67776614

            QUESTION

            How to use groovy formal parameters in a properties file
            Asked 2021-Jun-01 at 11:55

            I have such a properties file:

            ...

            ANSWER

            Answered 2021-Jun-01 at 11:55

            If you can change to properties file to a config-slurper valid format:

            Source https://stackoverflow.com/questions/67784674

            QUESTION

            Infinite scrolling for a collection that may change its order
            Asked 2021-May-31 at 17:57

            I am trying to implement infinite scrolling for documents stored in a MongoDB collection. Every document is a restaurant that has a numeric field rating, so I am using the rating field for sorting and showing restaurants with the highest rating first.

            The problem is that the collection of the restaurants is not static. The ratings of the restaurants change in real time, therefore the order of the restaurants in the collection changes constantly. As a result, although I formally have the sorting key, it does not make much sense.

            I am thinking of 2 solutions of the problem:

            1. Accept that the order of the restaurants may change slightly while someone is doing the infinite scrolling. Make the front end responsible for getting rid of possible duplicates. Accept that some of the restaurants may not appear during a scrolling at all. But that looks more like working around the problem instead of solving it.
            2. Only perform infinite scrolling against a static copy of the collection of restaurants. Update the static copy periodically (e.g., once a day) with the rating updates. But this approach seems overengineered. Also, what happens with the infinite scrolling at the moment when the static copy of the restaurants gets updated with the new ratings? Such scrolling will be broken as well because the problem with the changing order is still here, the order just does not change that frequently.

            I am sure I am far not the first one who have faced this problem. After all, there are a lot of examples of infinite scrolling implementations out there, like Facebook or Instagram feeds. At the same time, all the articles I have read so far seem too superficial and covering only cases with infinite scrolling through static collections.

            What is the right approach to deal with infinite scrolling for a collection that may change its order any time?

            Thank you.

            ...

            ANSWER

            Answered 2021-May-31 at 17:57

            Infinite scrolling, as commonly implemented, isn't a precision navigation method to begin with. Who are your users?

            • Power users are likely to hate it (I do on github, facebook, etc.) hence won't be using it too much.
            • Non-power users won't be able to tell that data is missing. If they happen to be looking for a particular restaurant and it vanishes, telling them to reload the page will be a sufficient explanation for most.
            • Users who scrape your data will do it without delays between requests to get all of your data.

            When you show the same restaurant twice people will notice so check for those cases in the frontend.

            You may also consider having a high-precision rating field for sorting. For example, if normally your UI shows integer rating, keep the floating-point rating used during the calculation and sort by that. This will produce a more stable sort.

            Source https://stackoverflow.com/questions/67773414

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

            Vulnerabilities

            No vulnerabilities reported

            Install formal

            You can download it from GitHub.

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