funcy | An experiment in adding functional pattern | Functional Programming library
kandi X-RAY | funcy Summary
kandi X-RAY | funcy Summary
An experiment in adding functional pattern matching to JavaScript
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QUESTION
I have a function that I am making use of that takes in a pointer to a location in a vector and is going to iterate it. For example:
...ANSWER
Answered 2021-May-15 at 15:36As you can just use the []-operator for vectors, you can write funcy(&m, &x[1]);.
If you want to use at(), you can write funcy(&m, &x.at(1));.
QUESTION
I would like to assign a pointer to a lambda function, in which the lambda function is taking variables passed by reference, not by value.
...ANSWER
Answered 2020-Jul-26 at 23:42Answered by @sweenish in the comments. The "function signature" has to match. It's actually "pretty straightforward".
QUESTION
I've got a function, main(), that generates 4 processes, and starts executes them eventually, but it loops over this whole block of code once it begins several times. What I want to have it do I think is apparent; print "hello1", execute the processes (and therefore the print statements), and then print "hello2"
What am I doing wrong? Would also be open to a solution that uses multiprocessing.Process() if that's easier, but I've had the same issue there as well.
...ANSWER
Answered 2020-May-18 at 23:58I think the main problem is that the for loop is indented within the with context manager for the concurrent.futures call. Also, the print("hello1") seems out of place. The print("hello2") needs to be indented.
I think the below edit is what you're looking for...maybe...
QUESTION
I just ran the following command:
...ANSWER
Answered 2017-Jul-07 at 22:43You need to install Microsoft Visual C++ 14.0 to install pycrypto:
QUESTION
I have a flow which transforms data, acts on it, transform it again, and acts on that. For example:
...ANSWER
Answered 2019-Dec-01 at 07:13Of course you can write your own operator, but as for me there is simpler approach, based on default operators, having handler, eg:
QUESTION
I have the following for loop:
...ANSWER
Answered 2019-May-15 at 07:58list_list_int = [1,2,3,4,5,6]
for j in chunks(2, list_list_int):
for i in j:
avg_, max_, last_ = foo(bar, i)
QUESTION
Here is the code I am using
...ANSWER
Answered 2018-Aug-14 at 00:36The problem is that you've applied a decorator designed for functions to a class. The result is not a class, but a function that wraps up a call to the class. This causes a number of problems (e.g., as pointed out by Aran-Fey in the comments, you can't isinstance(feat, mystery), because mystery).
But the particular problem you care about is that you can't pickle instances of inaccessible classes.
In fact, that's basically what the error message is telling you:
QUESTION
The RNFS.exists() method always returns false, even though the file exists. My file is stored in a manually created folder app/assets
import React, {Component} from 'react' import {View,Text,Image,Button} from 'react-native' import styles from "./styles" import { Provider as PaperProvider } from 'react-native-paper'; var RNFS = require('react-native-fs');
class CharacterSelect extends Component{
...ANSWER
Answered 2019-Apr-24 at 05:38If you don't add the storage permission tag into AndroidManifest.xml file, RNFS.exists() will always return false. So you should add this line into your AndroidManifest.xml file.
add this line to android/app/src/main/AndroidManifest.xml:
QUESTION
I'm making app, that can build graphs. I'm working with UIBezierPath, and everything was fine until I decided to make it possible to move and scale the graph using gestures.
here's how i'm drawing:
...ANSWER
Answered 2019-Apr-04 at 14:24Generally moving and scaling is done by applying transforms to layers. Look at CAShapeLayer to hold your path. As the user gestures, apply transforms; then recreate the path when the gesture completes. In more advanced usage, you may recalculate the actual path more often than just when the user stops (such as if they pause without letting go), but these are refinements.
QUESTION
How to do something like this in python
...ANSWER
Answered 2018-Nov-11 at 12:12Python functions can return only one value, but it is easy for that value to contain others. In your example, func1 returns a single tuple, which in turn contains two values.
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