simple-co | A simplified co implementation only working with thunk | State Container library
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A simplified co implementation only working with thunk.
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QUESTION
I am trying to learn Common Lisp with the book Common Lisp: A gentle introduction to Symbolic Computation. In addition, I am using SBCL, Emacs, and Slime.
In the end of chapter 8, the author presents the debugger as one of the great tools for lisp programming. Then, to showcase it he uses the break
command inside a factorial-like function definition:
ANSWER
Answered 2021-Jun-01 at 23:36When you enter the form (fact-debugging 4)
in the REPL, the form is evaluated using eval
, hence: 5: (EVAL (FACT-DEBUGGING 4))
.
If you move the emacs point to EVAL
in 5 and press M-.
(using Slime), you will find that eval
is calling eval-in-lexenv
, which is itself calling simple-eval-in-lexenv
, hence: 4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (FACT-DEBUGGING 4) #)
.
If you move the point to the 4th frame and press ENTER, you will see something like this:
QUESTION
I would like to make a Python script, but unfortunately, when I want to check the price, I get NONE
instead of the price itself (or US$00.00 if I change the code).
I found a lot of examples for it, where the HTML is with id
, but I do not know how I should do it with class
.
What I have so far:
...ANSWER
Answered 2021-Jan-31 at 10:36BeautifulSoup
has very minimal use to web scraping when the website is using Javascript and changes dynamically. Most of the websites these days you Javascript making it difficult to scrape data. One of the alternate option is to use Selenium
.
If you have already used Selenium
then directly jump to the code block below. If not, follow the instructions below.
- Check the Chrome version you are using in
About Chrome
under the options menu(top right corner of the browser). - Go to this website and download the same version of the driver.
- Create a folder
C:\webdrivers
and copy the downloaded driver into this folder. - Copy the file path
C:\webdrivers\chromedriver.exe
and add it to PATH in theenvironment variables
(
Now execute the code below :
QUESTION
ANSWER
Answered 2021-Jan-30 at 15:46The problem is caused by .
Rating
is backed by radio inputs that are visually hidden in order to provide accessibility aspects (e.g. keyboard functionality). The name
property of the radio inputs is controlled by the name
property passed to Rating
, so you need to give each rating a unique name.
Here's a modified version of your sandbox demonstrating this: https://codesandbox.io/s/material-demo-forked-kytd5?file=/ColorCards.js:365-389
The changes involve passing an inputName
prop to ColorCard
:
QUESTION
I'm having an issue with getting my Kafka / confluent spring boot with gradle project up and running. I originally had just a producer in this test project and everything was running well. I then added a Kafka consumer and now I get an exception on start up. Would anyone be able to spot the problem here:
Firstly this is the stacktrace
...ANSWER
Answered 2021-Jan-22 at 20:37Boot 2.3 uses spring-kafka 2.5 by default (and kafka-clients 2.5.0); since you have overridden its prescribed spring-kafka version to 2.6.5, you must override all of the kafka dependencies to match
kafka-clients 2.6.1, kafka-streams 2.6.1 (if you are using them).
If you are using the embedded Kafka broker in tests, there are a bunch of other jars you need. See https://docs.spring.io/spring-kafka/docs/current/reference/html/#update-deps
2.6.x is used by Boot 2.4 and will bring in all the right versions.
Confluent 5.4 uses Kafka 2.4.
You should use the version of confluent that matches Spring Boot's prescribed versions of spring-kafka, kafka-clients.
If you use Boot 2.4.x, use confluent 6.0.
https://docs.confluent.io/platform/current/installation/versions-interoperability.html
QUESTION
Is there a way to get the page url after redirect, with RestSharp?
For example, the code below will return page source of this thread, but how do I get the actual URL of the thread?
...ANSWER
Answered 2021-Jan-25 at 21:51I haven't use RestSharp in a while, bit if I remember correctly the response should have a property named ResponseUri or similar.
QUESTION
I have a kafka topic test
I want to get the following style information
...ANSWER
Answered 2021-Jan-25 at 07:10If you are only interested in the highest offset you can run:
QUESTION
My Transaction class has a method 'balance' which calls a method 'balance_after' from my Account class. I would like to make a test where I can check the 'balance_after' method is being called with the 'balance' method. I am new to both ruby and testing, so I appreciate any guidance! I am using simple-cov to get my coverage and i'd like to hit 100% if possible. I hope I have provided enough information. Thanks in advance!
...ANSWER
Answered 2021-Jan-19 at 18:02You have to call the method correctly. Transaction.new
takes an amount, presumably a number, and some sort of Account object which has balance_after
defined. You've given it two Symbols.
QUESTION
Storybook recommends technique for making a copy of a function:
...ANSWER
Answered 2020-Nov-28 at 20:57The full relevant code from the link you provided is:
QUESTION
I am using Spring Integration to read email from Outlook 365 (cloud) using IMAP inbound-channel-adapter
.
Scenario: Target mailbox in Outlook 365 is doing virus scanning for new emails once arrived, during this scan outlook is detaching the attachment and attaching it again once virus scan is completed.
Problem:
Attachment is missing in very few cases (1 mail out of 50 approx), this is because of those emails are read by inbound-channel-adapter
when the attachment is not available in outlook ( detached by virus scanner).
Question:
How can ensure the attachment was read every time? If I make the thread waiting for 2 mins inside handleMessage
method, then will it block the reading of next email just arrived?
OR please let me know any other solution to handle this situation.
Spring-integration.xml:
...ANSWER
Answered 2020-Nov-11 at 16:27Yes, as long as you don't shift the work to a different thread, the SourcePollingChannelAdapter
does block before the next poll. By default it is configured to poll only one message. Therefore, so far you are good.
Another way is probably to take a look into a custom search-term-strategy
:
QUESTION
I am using this grid.py coloring program here https://scipython.com/blog/a-simple-colouring-grid/ The relevant code that makes the grid is
...ANSWER
Answered 2020-Oct-18 at 00:07You could add/subtract a "stagger offset" for each x coordinates of the cells on a given row. The sign of the value determined by the rank of the 'row' by multiplying the offset by (-1)**row
.
Maybe like this?:
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