Expresser | modular lexer for DSLs , featuring a simple mathematics | Parser library
kandi X-RAY | Expresser Summary
kandi X-RAY | Expresser Summary
At the moment, just a modular C# DSL Lexer library.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Expresser
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Trending Discussions on Expresser
QUESTION
I built to create sanitizedHtml with post But I can't update it. What should I do?
When I try to update the description part updates but the sanitizedHtml does not update.
And I tried many ways, I think it might be a problem with findByIdAndUpdate.
or the problem comes from sanitizedHtml
models:
...ANSWER
Answered 2022-Jan-21 at 08:31You should add the { new: true }
flag to return the updated object:
QUESTION
I've been trying to implement Error Handling in Express on async functions with try and catch as well as creating a separate file but when I get the error express doesn't handle it, the site just crashes.
I have tested it on app.get('/campgrounds/:id... I would connect to a fake id to see if the error handler catches it but it doesn't.
The JS file:
...ANSWER
Answered 2021-Nov-14 at 12:19Mongoose returns null
if it does not find a document using findById
. So in your case const campground = await Campground.findById(id);
does not throw an error/rejects, instead null
is passed as campground
to your ejs-template, which probably results in the error you've described.
If you want to actually throw an error and force your error-handler to be invoked, you can throw an error from your /find
-handler, e.g.
QUESTION
Can't instantiate objects using python interpreter, please help.
So inside of my python file expresser.py
I have something like
ANSWER
Answered 2021-Sep-10 at 02:46I guess you meant:
QUESTION
I am developing a node.js / express web app. When I run in my localhost environment. Everything works like a charm. But when I deployed to Heroku, I get the following error:
...ANSWER
Answered 2020-Nov-05 at 15:16You are mixing CommonJS module syntax (require
) and ES6 module syntax (export
).
A module can only use one of these.
Your instance of Node.js is using the CJS loader, so change your module to export in the CJS style:
QUESTION
Path: /1,2,3,456,678
- only numbers and commas, not anything else
Should be matched with regex-like path like this: /ids:(\\d+[,\\d]*)
natively
But https://www.npmjs.com/package/path-to-regexp in express compiles it to some ridiculous regex
Expressers/noders - pls guide me how to approach this right
ANSWER
Answered 2020-Oct-05 at 18:22Replacing *
with {0,}
solved the issue
So request /1,2,34,56
matched by path: /ids:(\\d+[,\\d]{,*})
Link to path-to-regexp
issue: https://github.com/pillarjs/path-to-regexp/issues/233
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