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kandi X-RAY | stackoverflow Summary
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QUESTION
I want to create a toString function for Tuples with a variadic amount of a specific type (arithmetic types for now).
Something like this
...ANSWER
Answered 2021-Jun-16 at 03:17You can check all the types are identical or not with the help of fold expression (since C++17).
E.g.
QUESTION
I was reading this code (source):
...ANSWER
Answered 2021-Jun-16 at 02:16The n2 - n1
in the case of a negative number as a result when converted to bool
will yield true
. So n1
turns out to be less than n2
. That's why it is a bad practice to use int
s in such Boolean context.
Yes, as stated in the documentation:
...comparison function object which returns true if the first argument is less than the second
But the implementation of the comparison here leads to failure. Try this and see for yourself:
QUESTION
I built an app using Django 3.2.3., but when I try to settup my javascript code for the HTML, it doesn't work. I have read this post Django Static Files Development and follow the instructions, but it doesn't resolve my issue.
Also I couldn't find TEMPLATE_CONTEXT_PROCESSORS
, according to this post no TEMPLATE_CONTEXT_PROCESSORS in django, from 1.7 Django and later, TEMPLATE_CONTEXT_PROCESSORS
is the same as TEMPLATE
to config django.core.context_processors.static
but when I paste that code, turns in error saying django.core.context_processors.static
doesn't exist.
I don't have idea why my javascript' script isn't working.
The configurations are the followings
Settings.py
...ANSWER
Answered 2021-Jun-15 at 18:56Run ‘python manage.py collectstatic’ and try again.
The way you handle static wrong, remove the static dirs in your INSTALLED_APPS out of STATIC_DIRS and set a STATIC_ROOT then collectstatic again.
Add the following as django documentation to your urls.py
QUESTION
I am trying to use dotenv and jest together, and run into an error immediately.
A single test file, tests/authenticationt.test.ts
with only
ANSWER
Answered 2021-Jun-16 at 00:40try require('dotenv').config()
QUESTION
I need to modify the below code to work on more than one column.
Counting the number of unique values based on two columns in bash
...ANSWER
Answered 2021-Jun-15 at 19:48Consider this awk
:
QUESTION
I have this code which prints multiple tables
...ANSWER
Answered 2021-Jun-15 at 20:59So, this is a good opportunity to use purrr::map
. You are half way there by applying code to one dataframe.
You can take the code that you have written above and put it into a function.
QUESTION
Thanks this is now closed. The question was downvoted twice so it is not appropriate for stackoverflow.com
...ANSWER
Answered 2021-Jun-15 at 21:33Can you try this?
QUESTION
Warning: I'm not good at JavaScript, I based the JavaScript part off of this post.
So I have a little Script that should set theDuration
to an HTML element in the front window of active tab. I looked at the HTML and the Element in full is 00:10:00
. I want theDuration
to be 00:10:00
. I know you can set JavaScript variables to the JavaScript code below since it's mentioned in the post I based it off of, but when I try to run the code down below, it doesn't work.
ANSWER
Answered 2021-Jun-15 at 07:20I think, you should request for innerHTML, and indicate the expected result type. Not tested, because I have not Google Chrome and your webpage:
QUESTION
I am generating lexical analyzer with JLEX. I found a regular expression for string literal from this link and used it in .jflex file same of other expressions. but it gives me this error :
unterminated string at the end of the line
StringLiteral = \"(\\.|[^"\\])*\"
can anyone help me please, thanks.
...ANSWER
Answered 2021-Jun-15 at 20:46The regular expression you copied is for (f)lex, which uses a slightly different syntax for regular expressions. In particular, (f)lex treats "
as an ordinary character inside bracketed classes, so [^"\\]
is a character class matching anything other than (^
) a quotation mark ("
) or a backslash (\\
).
However, in JFlex, the "
is a quoting character, whether outside or inside brackets. So the "
in the character class is unterminated. Hence the error message.
So you need to backslash-escape it:
QUESTION
I was following this tutorial on using React.forwardRef
, where make this component:
ANSWER
Answered 2021-Jun-15 at 20:18Put this at the beginning of your file:
/* eslint-disable react/display-name */
You could also try this:
// eslint-disable-next-line react/display-name
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