iter8 | PHP library for iterable/generator transformations | Functional Programming library
kandi X-RAY | iter8 Summary
kandi X-RAY | iter8 Summary
Iter8 is a PHP library for iterable and functional operations (e.g., map, filter, reduce) implemented using generators. Iter8 provides ways to create and transform any iterables (e.g., generators, iterators, arrays, etc.) easily in order to deal with data sets that fit the Iterator pattern use case (i.e., typically data of large, paginated, infinite, or unknown length). Using iterators/generators generally provides benefits like lower memory consumption and lazy evaluation. Complex transformations can be defined via functional composition.
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- Creates a callable function for the given operator .
- Slice an array .
- Generate a range of numbers within a range .
- Creates a memoized version of the wrapped function .
- Flattens an iterable .
- Read from stream .
- Returns the current element .
- Sort the collection by a given function .
- Get inner generator .
- Creates a new generator that works with the given function .
iter8 Key Features
iter8 Examples and Code Snippets
Lines of Code : 21License : Permissive (MIT)
Copy$iter = Iter::pipe(Gen::from(PEOPLE), [
Pipe::filter(Func::compose([
Func::index('age'),
Func::operator('>=', 20),
])),
Pipe::map(Func::index('name')),
Pipe::debounce(),
]);
Iter::print($iter);
#> ['Benny', 'Cal $items = Gen::defer(function () use ($apiClient) {
$apiResult = $apiClient->getItems();
foreach ($apiResult['items'] as $data) {
yield Models\Item::fromArray($data);
}
});
// ...
// First iteration
foreach ($items as $item) { $apiResult = $apiClient->getItems();
$items = Iter::map($apiResult['items'], function (array $data) {
return Models\Item::fromArray($data);
});
$items = Iter::rewindable($items);
// ...
// First iteration
foreach ($items as $item) { /* ... */ Community Discussions
Trending Discussions on iter8
QUESTION
I would like to keep track of bubble sorting algorithm's intermediate states at each iteration. I've tried to cache them in dictionary while loop is running, but i keep getting the same state all the time
Here is my code:
...ANSWER
Answered 2020-Nov-10 at 15:05The problem is, that with the line
cache[f'iter{iter}'] = new_lst
both the object in the cache dictionary as well as the new_list variable point to the same object.
In the next interation then
new_lst = lst
overwrites it with a new object and now the cache, lst and new_list point to the same object.
What you need to do, is to create a 'real' copy of the object. For that you can use the copy package.
You should also read about the difference between shallow and deep copy as they are very fundamental and the source of a multitude of problems if not understood correctly.
QUESTION
I was working on a project using Arduino with python, I was plotting real-time sensor data from Arduino using libraries(pyfirmata,matplot,draw now) I am getting the real-time output but after the fixed iteration the figure got not responding. I attached the code below
...ANSWER
Answered 2018-Oct-17 at 17:17You probably want to call plt.ioff() before plt.show().
More generally, better work completely inside the event loop as shown below.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install iter8
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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