generators | Generate model , controller and scaffold | Model View Controller library
kandi X-RAY | generators Summary
kandi X-RAY | generators Summary
Generators for CompoundJS MVC framework.
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- The controller generator .
- model generator
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generators Key Features
generators Examples and Code Snippets
Lines of Code : 87
License : No License
Copyconst numbers = [1, 2, 3, 4, 5];
// bad
let sum = 0;
for (let num of numbers) {
sum += num;
}
sum === 15;
// good
let sum = 0;
numbers.forEach((num) => {
sum += num;
});
sum === 15;
// best (use the functional force)
const sum = numbers.red >>> def thingy():
... yield 1
... yield 2
... yield 3
...
>>>
>>> yield 'hi'
File "", line 1
SyntaxError: 'yield' outside function
>>>
>>> thingy()
>>>
>>> t = thingy >>> for name in ['theelous3', 'RubyPinch', 'go|dfish']:
... print(name)
...
theelous3
RubyPinch
go|dfish
>>> for letter in 'abc':
... print(letter)
...
a
b
c
>>>
>>> for thing in 123:
... print(thing) def get_generating_ops(ts):
"""Return all the generating ops of the tensors in `ts`.
Args:
ts: a list of `tf.Tensor`
Returns:
A list of all the generating `tf.Operation` of the tensors in `ts`.
Raises:
TypeError: if `ts` cannot b Community Discussions
Trending Discussions on generators
QUESTION
Suppose I want to model, using Haskell pipes, a Python
Generator[int, None, None]which keeps some internal state. Should I be usingProducer int (State s) ()orStateT s (Producer int m) (), wheremis whatever type of effect I eventually want from the consumer?How should I think about the notion of transducers in pipes? So in Oleg's simple generators, there is
...
ANSWER
Answered 2022-Mar-31 at 18:32In pipes, you typically wouldn't use effects in the base monad m of your overall Effect to model the internal state of a Producer. If you really wanted to use State for this purpose, it would be an internal implementation detail of the Producer in question (discharged by a runStateP or evalStateP inside the Producer, as explained below), and the State would not appear in the Producer's type.
It's also important to emphasize that a Producer, even when it's operating in the Identity base monad without any "effects" at its disposal, isn't some sort of pure function that would keep producing the same value over and over without monadic help. A Producer is basically a stream, and it can maintain state using the usual functional mechanisms (e.g., recursion, for one). So, you definitely don't need a State for a Producer to be stateful.
The upshot is that the usual model of a Python Generator[int, None, None] in Pipes is just a Monad m => Producer Int m () polymorphic in an unspecified base monad m. Only if the Producer needs some external effects (e.g., IO to access the filesystem) would you require more of m (e.g., a MonadIO m constraint or something).
To give you a concrete example, a Producer that generates pseudorandom numbers obviously has "state", but a typical implementation would be a "pure" Producer:
QUESTION
I'd like to construct an object that works like a random number generator, but generates numbers in a specified sequence.
...ANSWER
Answered 2022-Mar-29 at 00:47You can call next() with a generator or iterator as an argument to withdraw exactly one element from it. Saving the generator to a variable beforehand allows you to do this multiple times.
QUESTION
I saw a video about speed of loops in python, where it was explained that doing sum(range(N)) is much faster than manually looping through range and adding the variables together, since the former runs in C due to built-in functions being used, while in the latter the summation is done in (slow) python. I was curious what happens when adding numpy to the mix. As I expected np.sum(np.arange(N)) is the fastest, but sum(np.arange(N)) and np.sum(range(N)) are even slower than doing the naive for loop.
Why is this?
Here's the script I used to test, some comments about the supposed cause of slowing done where I know (taken mostly from the video) and the results I got on my machine (python 3.10.0, numpy 1.21.2):
updated script:
...ANSWER
Answered 2021-Oct-16 at 17:42From the cpython source code for sum sum initially seems to attempt a fast path that assumes all inputs are the same type. If that fails it will just iterate:
QUESTION
I'm experimenting with Chaum's blind signature, and what I'm trying to do is have the blinding and un-blinding done in JavaScript, and signing and verifying in Java (with bouncy castle). For the Java side, my source is this, and for JavaScript, I found blind-signatures. I've created two small codes to play with, for the Java side:
...ANSWER
Answered 2021-Dec-13 at 14:56The blind-signature library used in the NodeJS code for blind signing implements the process described here:
BlindSignature.blind()generates the SHA256 hash of the message and determines the blind message m' = m * re mod N.BlindSignature.sign()calculates the blind signature s' = (m')d mod N.BlindSignature.unblind()determines the unblind signature s = s' * r-1 mod N.BlindSignature.verify()decrypts the unblind signature (se) and compares the result with the hashed message. If both are the same, the verification is successful.
No padding takes place in this process.
In the Java code, the implementation of signing the blind message in signConcealedMessage() is functionally identical to BlindSignature.sign().
In contrast, the verification in the Java code is incompatible with the above process because the Java code uses PSS as padding during verification.
A compatible Java code would be for instance:
QUESTION
I'm wondering about code like this:
...ANSWER
Answered 2022-Jan-17 at 14:48There are two answers to your question :
- the absolutist : indeed, the context managers will not serve their role, the GC will have to clean the mess that should not have happened
- the pragmatic : true, but is it actually a problem ? Your file handle will get released a few milliseconds later, what's the bother ? Does it have a measurable impact on production, or is it just bikeshedding ?
I'm not an expert to Python alt implementations' differences (see this page for PyPy's example), but I posit that this lifetime problem will not occur in 99% of cases. If you happen to hit in prod, then yes, you should address it (either with your proposal, or a mix of generator with context manager) otherwise, why bother ? I mean it in a kind way : your point is strictly valid, but irrelevant to most cases.
QUESTION
I generated an api SDK using OpenAPI typescript-redux-query. Unfortunately it does not create any README file, like many other generators do, and I have no idea how should I use it.
An example project can be found on github, but I'm not sure if that's up to date.
How should I initialize this SDK, and how to use it in my project?
...ANSWER
Answered 2022-Jan-06 at 17:37The redux-query project that the OpenApi generator uses was last updated 2 years ago. It seems to be abandoned, and since the redux-query generator is not well documented, I don't suggest using them.
I ended up using the Redux Toolkit generator. It can also generate an SDK from your OpenAPI definitions, and the rtk-query documentation explains well how to use them.
QUESTION
I'm having trouble understanding how to use pybind11 conan package. I can use some others, but pybind11 is giving me hard time.
My starting point is as follows:
conanfile.txt:
...ANSWER
Answered 2021-Nov-08 at 15:48I have used pybind in the past (two or three years ago) and it worked without problems with conan. However, I tried to install it now and faced similar problems. This might be related to the evolution of conan towards conan 2.0 (an alpha version was released today) and that the recipe was not updated to account changes.
An alternative that you might consider, is to install pybind with conan using a different generator. More specifically, the CMakeDeps generator. With the CMakeDeps generator conan will create a pybind11-config.cmake file for you and you just need to use find_package(pybind11 REQUIRED) in CMakeLists.txt. That is, there is no "conan specific stuff" in your CMakeLists.txt file.
conanfile.txt
QUESTION
I created a music database application a few years ago in C++ (Code::Blocks + wxWidgets + SQLAPI++) and Firebird as the database server (running as a service in classic mode) on the Windows platform (v10). It creates a SQL database with tables, views, triggers, generators.
So far, it has been running perfectly up to Firebird 3 (Latest version). Now Firebird 4.0 is out, I thought I try it out.
In order to narrow down on the problem, I created a new app that only creates the database, tables, triggers, generators,and only 2 views which are focused around the problem area.
The code for vew_AlbumDetails I use in my test app is:
...ANSWER
Answered 2021-Dec-23 at 06:20I have added 'DataTypeCompatibility = 3.0' to both databases.conf and firebird.conf.
The datatype for Album_NrSeconds is now NUMERIC.
My application runs flawlessly under Firebird 4.0 as a service after these 2 edits.
Thank you Mark Rotteveel for your suggestion. Its much appreciated.
QUESTION
I want to create a UI something like this example image by using flex and without negative margin -
The challenge is that I have used float and negative margin to create the same layout. But I don't want to use a negative value to set the green div outside the content. Also, I have used the float to keep the contents around the green boxes. But I want to use flex instead of float.
So, to summarize my question - Create a reference layout that will not use any float or negative value to align the boxes in green.
I have added the code snapshot here to take a look at my HTML and CSS.
Any help would be appreciated. Thanks in Advance.
...ANSWER
Answered 2021-Dec-08 at 08:42No.
Flexbox is for laying boxes out in a row or column.
Float is for making text wrap around boxes.
You need float for this.
QUESTION
Let's say I want to rotate class names for my button on click. Clicked once becomes button-green, twice - button-yellow, thrice - button-red. And then it repeats, so fourth click makes it button-green again.
I know other techniques how to do it, I'm not asking for implementation advice. I made up this example to understand something about generators in JavaScript.
Here's my code with generator:
...ANSWER
Answered 2021-Nov-06 at 19:59JavaScript "native" APIs generally are willing to create new objects with wild abandon. Conserving memory is generally not, by any appearances, a fundamental goal of the language committee.
It would be quite simple to create a general facility to wrap the result of invoking a generator in an object that delegates the .next() method to the actual result object, but also saves each returned value as a .current() value (or whatever works for your application). Having a .current() is useful, for such purposes as a lexical analyzer for a programming language. The basic generator API, however, does not make provisions for that.
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