When I am creating a NodeJS module to be exported, the module object is not recognized. Is there a way to get this module object ot be recognized. I looked under the Settings&Framworks > Node and that appears to be correct. Although I can't seem to keep the "Coding assistance for Node.js" checked (it keeps clearing the 'check')
I looked through IntelliJ's Reference Material Here
I actually may be coding incorrectly as well, perhaps I'm not supposed to hook into this 'exports' object in this manor.
Advice and guidance appreciated.
First this question is very similar to This Question
First I went to the settings (Ctrl-Alt-S) and
'Language & Frameworks' > JavaScript > Libraries
Then I hit the Download button till I found a bunch of node libraries. I figured this was a very 'basic' node object so I used the plain 'node' libary.
Then the #types/node was present for me to enable
Related
I'm trying to compile a Salesforce sfdx plugin which is a node project with (among others) the following dependency chain that ultimately leads to fake-timers#^7.1.0:
#salesforce/command#2.2.0 -> #oclif/test#^1.2.4 -> fancy-test#^1.4.3 -> #types/sinon#* -> #sinonjs/fake-timers#^7.1.0.
When compiling it with the Typescript compiler tsc, I get the following error:
node_modules/#sinonjs/fake-timers/types/fake-timers-src.d.ts:11:28 - error TS2304: Cannot find name 'queueMicrotask'.
11 queueMicrotask: typeof queueMicrotask;
~~~~~~~~~~~~~~
Found 1 error.
error Command failed with exit code 1.
This looks like a bug in fake-timers-src.d.ts but introduced in 7.1.0 so I could try to lock the version at 7.0.5 but that might break all kinds of other things.
Does anybody who uses/maintains fake-timers know how to fix this? Or will this be fixed in a future version?
BTW I'm a total NodeJS n00b so if there's something really obvious here that I'm missing, please be kind and just tell me what it is :)
Thanks!
Frans
Frans! fatso83 from the Sinon team here :)
The problem here has all to do with TypeScript and nothing to do with Node, so I feel your pain. No wonder you are wondering. The problem is that the definitions are probably missing that property. For version 7 we tried to generate TypeScript definitions from JSDoc. This works reasonably well for simpler type, but ultimately, TypeScript is more powerful in describing types than JSDoc (like the typeof operator), so it was an uphill battle that would never result in the same quality as the types available from the external Definitely Typed project. We ended up abandoning that effort and therefore this will not be fixed, but it will naturally go away with version 8 (that will not be shipping its own types).
What you can do is this: npm install #sinonjs/fake-timers#6 (which is the previous version) and npm install #types/sinonjs__fake-timers#6 (which are the externally maintained types).
You might find some background for this in this issue.
A new version of Typescript is allowing to use template litteral strings as types like for example:
type Hey = 'Hey';
type HeyThere = `${Hey} There`;
And it's working very well in the playground of Typescript with the last version which is 4.1.3.
But when I try using it in my projects, I still get the "Type expected. ts(1110)" error in my syntax.
Even though of course I updated the package to the latest version, I also tried to use it in a new project created from scratch and still didn't work. I'm sure it's a very simple mistake but I can't fix it. Also this is very new feature so I can't find much answers online.
Thank you very much for your help!
update ts-loader to version 8 or 9
I'm trying to cleanly write some universal javascript code, for node and browser.
Most of the code is env-agnostic, however, some implementation parts detect the environment (node or browser) and conditionally execute different code.
I would like to activate node typings ONLY for those specific files. However, I couldn't find a way to do so. Either:
node typings, when referenced in even one file only, are made effective for all files (bad, since I could inadvertently rely on node specificities)
if not referencing node typings at all, typescript obviously complains about a lot of unknown definitions, which would be painful to patch by hand
Do anyone has a clean way of activating some type definitions for a selected set of files ?
It's not possible at this time.
A solution: building node-dependant and node-independant files separately. This could be done automatically with a script.
I had resigned myself to the fact that every require statement in Typescript had to be relative to the file you were typing in, but I recently discovered an application that does this differently and it confuses me. I was hoping someone with enough skill could explain how this is working to me.
The application in question is the new Raven DB HTML5 Studio, which uses typescript, you can find the whole application here:
RavenDB HTML5 Studio
When browsing its source code, I came across something interesting... if you go and look at many of the files; In specific the one I am looking at... app/viewmodels/deleteItems.ts, it has a reference at the top that reads..
import document = require("models/document");
but models/document isn't a path relative to deleteItems.ts, but this works. Can someone explain how this is happening? I'm linking you RIGHT to the exact files I'm talking about. This kind of behavior is littered all over this application.
app/viewmodels/deleteItem.ts
app/models/document.ts
This is exactly the kind of behavior I really wanted to try and emulate in my own code, since trying to keep all of the paths relative to the file I'm working in is a headache, but this program seems to be completely free of that requirement.
This doesn't necessarily involve RavenDB, but I am tagging it anyway, because perhaps someone who has read over the Raven repository will understand it and be able to answer.
Update
I am trying to mimic this behavior in my own code, and not finding any success. I am sorry if I seem outright stupid, but this is all really confusing me. Here is what my structure looks like; My repository is private, so I cannot really just link to it.
app_content
scripts
home
controls
models
editors
utils
UserControls.ts
UserMapping.ts
UserElements.ts
ui
lib
jquery
jquery.js
jquery.validate.js
jquery.ui.js
kendo
kendo.all.js
kendo.aspnetmvc.js
// other libraries
Alright, that's a general feel for my folder layout. All typescript files are under the /home folder so that I can prevent github from saving their compiled javascript and locking that.
So then, in the file UserControls.ts, it looks like this right now...
import userElements = require('./UserElements');
import userMapping = require('./UserMapping');
export class UserControls {
// code
}
No matter what combinations I have tried, this is the only format/syntax that doesn't throw errors in Visual Studio. But from what I see in the RavenDB project, I should very much be able to declare it like ...
import userElements = require('utils/UserElements');
import userMapping = require('utils/UserMapping');
export class UserControls {
// some code
}
No matter what combinations I have tried, this is the only format/syntax that doesn't throw errors in Visual Studio. But from what I see in the RavenDB project, I should very much be able to declare it like ...
That is because they are using a drandalJS configuration to tell it how to resolve the file path. (see https://github.com/ayende/ravendb/blob/New3/Raven.Studio.Html5/App/main.js)
There isn't a similar configuration (basePath) for TypeScript at the moment. Your best option is to use relative paths as you've already noticed.
PS: an old but still relevant video that shows you how requirejs config works and relevance when using TypeScript https://www.youtube.com/watch?v=4AGQpv0MKsA&hd=1
The TypeScript compiler's module resolution algorithm is essentially undocumented, unfortunately. It tries to "split the difference" between AMD and CommonJS's module resolution rules, so it's somewhat hard to reason about.
What you're seeing here is an attempt to mimic CommonJS's "walk up the tree" resolution rule. When in the path C:\a\b\c\d resolving x, first C:\a\b\c\d\x is tried, then C:\a\b\c\x, then C:\a\b\x, and so on until it hits the root folder and gives up.
I am facing a situation of which I have no idea. I am tried to test one method that I have implemented in C++ and I used swig to generate the wrapper. After compilation, when I tried to run the application, I got an error java.lang.UnsatisfiedLinkError.
It further states that
cannot load library:reloc_library[1311]:33
cannot locate '_Z13recognizeFacePKcS0_'
...
and suddenly throw exception.
I tried using adb shell to debug and found library in the right location (data/data/com/mesh/faceAuth/lib/libfaceAuth.so) but it gives the same error. I also read from this site, that it has to do with wrong STL implementation which I don't have any clue of. I will highly appreciate your candid suggestion.
Regards,
Mohammed.
Best guess with what information you have provided, The library you are trying to load needs some dependencies to be loaded before it.
For example:
System.loadLibrary("bullet");
System.loadLibrary("irrlicht");
System.loadLibrary("gamescript");
gamescript library needs other 2 library to be loaded before it. Otherwise, it gives me the same error you have mentioned. I can dig further on this issue if you can post some part of your .mk file for building the library here.
Your error has nothing to do with STL.
You probably reference a global function ::recognizeFace(char const*, char const*) in your code. Maybe, you have another function defined, for example recognizeFace(char*, char*).