twist | Declarative JavaScript Testing | Unit Testing library
kandi X-RAY | twist Summary
kandi X-RAY | twist Summary
Declarative testing for JavaScript.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of twist
twist Key Features
twist Examples and Code Snippets
Lines of Code : 82License : Strong Copyleft (CC BY-SA 4.0)
Copyfunction doClone(node){ // clone the given node
return d3.select(node.parentNode.insertBefore(node.cloneNode(true), node.nextSibling));
}
function hatchBars(hatchTargets){ // Place a hatching pattern over the target bars.
fo$rostopic pub --once ardrone/takeoff std_msgs/Empty
$rostopic pub --once /land std_msgs/Empty
#!/usr/bin/env python
from __future__ import print_function
import roslib; roslib.load_manifeCommunity Discussions
Trending Discussions on twist
QUESTION
I have a simple but yet complicated question (at least for me)!
I would like to extract a part of a string like in this example:
From this string:
...ANSWER
Answered 2022-Mar-22 at 09:21With {stringr}, assuming the path comprises folders with lower case letters only. You could adjust the alternatives in the square brackets as required for example if directory names include a mix of upper and lower case letters use [.A-z]
Check a regex reference for options:
QUESTION
here is a puzzle that I keep on bumping into and that, I believe, no previous SO question has been addressing: How can I best use the lens library to set or get values within a State monad managing a nested data structure that involves Maps when I know for a fact that certain keys are present in the maps involved?
ANSWER
Answered 2022-Feb-09 at 11:43If you are sure that the key is present then you can use fromJust to turn the Maybe User into a User:
QUESTION
I am working on certain stock-related projects where I have had a task to scrape all data on a daily basis for the last 5 years. i.e from 2016 to date. I particularly thought of using selenium because I can use crawler and bot to scrape the data based on the date. So I used the use of button click with selenium and now I want the same data that is displayed by the selenium browser to be fed by scrappy. This is the website I am working on right now. I have written the following code inside scrappy spider.
...ANSWER
Answered 2022-Jan-14 at 09:30The 2 solutions are not very different. Solution #2 fits better to your question, but choose whatever you prefer.
Solution 1 - create a response with the html's body from the driver and scraping it right away (you can also pass it as an argument to a function):
QUESTION
So I make robot, which should get data from laser sensor and then move until some distance and stops.
But I find problem in callback functions. Is there somewhere better explanation how to update variables with callback properly ? I had same problem with python and there I found out that time.sleep(0.2) let the class to update properly. Even this is little bit magic for me. Because I was thinking that in python this works automatically because separated threading.
In c++ I know that the basic is using spinOnce() and spin(). This works how it should in normal non-object-oriented case. But in the class again I found out that the class is not updated properly. Why is this a case ? I can not find why the callback function is not working properly. I could see if it was the case by print full range from reading, but it never happens. I have ros::spinOnce() and I think I have correctly member functions. Can someone please help me ? And help me to understand ?
robot.h
...ANSWER
Answered 2022-Jan-14 at 09:02I found the problem. Basically with callbacks. You have to be sure, that the publisher catches up. So before you call the spinOnce() which checks if it is something there. You have to call some sort of wait function. ros::rate/ros::Duration and wait. Then when you call spinOnce(). You will have new incoming data, which the callback function can read.
In this sence:
QUESTION
Alright, I know that there are a few posts about getting the product of an unknown amount arrays with unknown amount of elements -
JavaScript - Generating combinations from n arrays with m elements
Cartesian array based on array of objects in Javascript
To name a few - However, I have a need for a slight twist -
What I would like is a function that can output an Array of serialized objects instead of an Array of Arrays..
for example, if the input of the function were -
...ANSWER
Answered 2021-Dec-09 at 00:53this a just a recursive matter...
QUESTION
The sizeof builtin can take either a type or an expression, and will return the appropriate value.
I'd like to build a macro that uses _Generic() expressions to do something similar. In particular, I'd like to be able to pass either a type name or a value as the parameter, just like sizeof.
As a trivial example, I can do something like this:
...ANSWER
Answered 2021-Dec-03 at 19:56Your compound literal idea will work if you combine it with typeof.
However, please note that typeof is a a GCC C language extension, so it might not work in every C compiler.
QUESTION
This is a follow up to my previous question. I recieved some good answers there, but, because of the way I simplified my actual problem, I think I misled the answerers, and I hope to remedy that here.
TL;DR I have a typeclass Category from constrained-categories which constrains the domain/codomain of it's Categorys using a TypeFamily ("constraint family") called Object. I would like to make a Free Category, but am struggling to get proofs that expressions satisfy the Object constraint.
Consider my Free data type, and its constrained-categories.Category instance:
ANSWER
Answered 2021-Nov-23 at 23:48{-# LANGUAGE GADTs, RankNTypes, TypeApplications, AllowAmbiguousTypes #-}
QUESTION
@pytest.fixture
def d_service():
c = DService()
return c
# @pytest.mark.asyncio # tried it too
async def test_get_file_list(d_service):
files = await d_service.get_file_list('')
print(files)
ANSWER
Answered 2021-Nov-18 at 08:02This works for me, please try:
QUESTION
This question is similar to Source script to separate environment in R, not the global environment, but with a key twist.
Consider a script that sources another script:
...ANSWER
Answered 2021-Sep-30 at 12:17Use the argument local = TRUE in all nested source() functions.
File 3:
QUESTION
I've been tasked with creating a reverse proxy that is required to make a TLS connection to the proxied service. The certificates I have are unique per request, and in-memory.
I haven't had much luck getting it right, and I've tried a number of things. Here's where I'm at now, hopefully someone can help:
...ANSWER
Answered 2021-Oct-01 at 17:10For TLS (ie https, which is http with TLS) you must connect to the correct server port. It is usually port 43 or port 8443. It is never the same as the port used for http. So this means that to start, the server must provide a port for TLS, although most do.
The only code you've shared has nothing to do with the connection to the server.
Since you've not shared any of the code making the request to the server, it is not possible to show where it is wrong.
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