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The JavaScript IntelliSense is not working on Visual Studio 2017 RTM editor. I can’t even format the code, nothing is working.
UPDATE: Looks like latest update of VS 2017 (15.3) solve the issue.
This is because of the new javascript language service
http://aka.ms/JavaScriptExperimental
To disable and bring back JS, go to: Tools - Options - text editor - Javascript/Typescript - Language service - General and disable the very first option.
Enabling Auto List members helped me:
On the menu go to:
Tools > Options >> Text Editor >> All Languages >> General
Uncheck and check back "Auto List Members" to make it a check sign instead of a square
Uncheck and check back "Parameter Information" to make it a check sign instead of a square
The problem might be that you have too much JavaScript being analyzed due to particularly large JS libs. You can exclude those from your project with a tsconfig.json file (example below). The only catch is any library you exclude from your project must be explicitly included in the "typeAcquisition" settings in order to get IntelliSense for it.
{
"compilerOptions": {
"allowJs": true,
"noEmit": true,
"lib": ["es2016", "dom"] // only necessary if you need new stuff like promises
},
"exclude": [
"wwwroot/lib/" //add folders that contain javascript libraries here
],
"typeAcquisition": {
"enable": true,
"include": [
"jquery" // add any libraries excluded in the folders above here
]
}
}
Based on which type Project you're working you must install the jquery or other libraries to be helped by Intellisense.
For exemple: if you're using ASPNET Core and want to be helped with jquery statments, you must add a bower configuration file, and then add a Key/Value pair in this file:
"jquery":"version"...
After that, build the Project and enjoy the Intellisense working.
Related
Hi there I am currently using Codeanywhere as an on-the-fly IDE for C++, to be able to easily code between different devices.
While setting the Codeanywhere environment, I ran into the "Project Config" file (that gear icon beside "Run Project" button), and I havent found nothing on this file's parameters.
I'm wondering if using this I could set compile and run settings (something like Visual Studio Code).
Am I missing an obscure documentation page?
Also could anyone explain those default settings?
Project Config C++ file
{
"run": [{
"default": true,
"devbox": "cpp_test"
}]
}
Thanks!
This is most useful when combined with the undef option in order to suppress warnings for project-specific global variables. Setting an entry to true enables reading and writing to that variable. Setting it to false will trigger JSHint to consider that variable read-only.
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I have a project that can use boost library and it can also not to use it.
I have a property sheet use_boost that can be added to the project and there are set the path to boost and a <PreprocessorDefinitions> tag with value I_AM_USING_BOOST.
In the code I have something like:
#ifdef I_AM_USING_BOOST
#include <boost/any.hpp>
#else
#include <string>
#endif
namespace test
{
#ifdef I_AM_USING_BOOST
using my_defined_type = boost::any;
#else
using my_defined_type = std::string;
#endif
}
So if I do not want a build with boost, I remove the property sheet.
If I want to build with boost, I add the property sheet to the project.
Now, I want to build both variations of the library: one using boost and one not using boost.
Can I have a single project with two different builds: one with boost and one without boost, but not manually add or remove the property sheet?
I build using msbuild from a batch file.
As a solution for me, I've added a new project configuration (Release_no_boost) and in that configuration I've removed the property sheet using boost library.
So, in the batch file I can now run msbuild for both variations by calling different configurations.
I have now in the batch file:
msbuild /t:rebuild /p:Configuration=Release D:\projects\some_test\test_1\test_1.vcxproj
msbuild /t:rebuild /p:Configuration=Release_no_boost D:\projects\some_test\test_1\test_1.vcxproj
This can be also used for a solution with multiple project, but it is needed to be created a solution configuration and for each project in the solution that is build, it is set the project configuration that is wanted.
Difference in batch is that instead of the project file it is given as parameter the solution file:
msbuild /t:rebuild /p:Configuration=Release D:\projects\some_test\some_test.sln
msbuild /t:rebuild /p:Configuration=Release_no_boost D:\projects\some_test\some_test.sln
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How do you install and use OpenCV 2.4.3 under VC++ 2010 Express?
1. Installing OpenCV 2.4.3
First, get OpenCV 2.4.3 from sourceforge.net. Its a self-extracting so just double click to start the installation. Install it in a directory, say C:\.
Wait until all files get extracted. It will create a new directory C:\opencv which
contains OpenCV header files, libraries, code samples, etc.
Now you need to add the directory C:\opencv\build\x86\vc10\bin to your system PATH. This directory contains OpenCV DLLs required for running your code.
Open Control Panel → System → Advanced system settings → Advanced Tab → Environment variables...
On the System Variables section, select Path (1), Edit (2), and type C:\opencv\build\x86\vc10\bin; (3), then click Ok.
On some computers, you may need to restart your computer for the system to recognize the environment path variables.
This will completes the OpenCV 2.4.3 installation on your computer.
2. Create a new project and set up Visual C++
Open Visual C++ and select File → New → Project... → Visual C++ → Empty Project. Give a name for your project (e.g: cvtest) and set the project location (e.g: c:\projects).
Click Ok. Visual C++ will create an empty project.
Make sure that "Debug" is selected in the solution configuration combobox. Right-click cvtest and select Properties → VC++ Directories.
Select Include Directories to add a new entry and type C:\opencv\build\include.
Click Ok to close the dialog.
Back to the Property dialog, select Library Directories to add a new entry and type C:\opencv\build\x86\vc10\lib.
Click Ok to close the dialog.
Back to the property dialog, select Linker → Input → Additional Dependencies to add new entries. On the popup dialog, type the files below:
opencv_calib3d243d.lib
opencv_contrib243d.lib
opencv_core243d.lib
opencv_features2d243d.lib
opencv_flann243d.lib
opencv_gpu243d.lib
opencv_haartraining_engined.lib
opencv_highgui243d.lib
opencv_imgproc243d.lib
opencv_legacy243d.lib
opencv_ml243d.lib
opencv_nonfree243d.lib
opencv_objdetect243d.lib
opencv_photo243d.lib
opencv_stitching243d.lib
opencv_ts243d.lib
opencv_video243d.lib
opencv_videostab243d.lib
Note that the filenames end with "d" (for "debug"). Also note that if you have installed another version of OpenCV (say 2.4.9) these filenames will end with 249d instead of 243d (opencv_core249d.lib..etc).
Click Ok to close the dialog. Click Ok on the project properties dialog to save all settings.
NOTE:
These steps will configure Visual C++ for the "Debug" solution. For "Release" solution (optional), you need to
repeat adding the OpenCV directories and in Additional
Dependencies section, use:
opencv_core243.lib
opencv_imgproc243.lib
...
instead of:
opencv_core243d.lib
opencv_imgproc243d.lib
...
You've done setting up Visual C++, now is the time to write the real code. Right click your project and select Add → New Item... → Visual C++ → C++ File.
Name your file (e.g: loadimg.cpp) and click Ok. Type the code below in the editor:
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main()
{
Mat im = imread("c:/full/path/to/lena.jpg");
if (im.empty())
{
cout << "Cannot load image!" << endl;
return -1;
}
imshow("Image", im);
waitKey(0);
}
The code above will load c:\full\path\to\lena.jpg and display the image. You can
use any image you like, just make sure the path to the image is correct.
Type F5 to compile the code, and it will display the image in a nice window.
And that is your first OpenCV program!
3. Where to go from here?
Now that your OpenCV environment is ready, what's next?
Go to the samples dir → c:\opencv\samples\cpp.
Read and compile some code.
Write your own code.
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How do you install and use OpenCV 2.4.3 under VC++ 2010 Express?
1. Installing OpenCV 2.4.3
First, get OpenCV 2.4.3 from sourceforge.net. Its a self-extracting so just double click to start the installation. Install it in a directory, say C:\.
Wait until all files get extracted. It will create a new directory C:\opencv which
contains OpenCV header files, libraries, code samples, etc.
Now you need to add the directory C:\opencv\build\x86\vc10\bin to your system PATH. This directory contains OpenCV DLLs required for running your code.
Open Control Panel → System → Advanced system settings → Advanced Tab → Environment variables...
On the System Variables section, select Path (1), Edit (2), and type C:\opencv\build\x86\vc10\bin; (3), then click Ok.
On some computers, you may need to restart your computer for the system to recognize the environment path variables.
This will completes the OpenCV 2.4.3 installation on your computer.
2. Create a new project and set up Visual C++
Open Visual C++ and select File → New → Project... → Visual C++ → Empty Project. Give a name for your project (e.g: cvtest) and set the project location (e.g: c:\projects).
Click Ok. Visual C++ will create an empty project.
Make sure that "Debug" is selected in the solution configuration combobox. Right-click cvtest and select Properties → VC++ Directories.
Select Include Directories to add a new entry and type C:\opencv\build\include.
Click Ok to close the dialog.
Back to the Property dialog, select Library Directories to add a new entry and type C:\opencv\build\x86\vc10\lib.
Click Ok to close the dialog.
Back to the property dialog, select Linker → Input → Additional Dependencies to add new entries. On the popup dialog, type the files below:
opencv_calib3d243d.lib
opencv_contrib243d.lib
opencv_core243d.lib
opencv_features2d243d.lib
opencv_flann243d.lib
opencv_gpu243d.lib
opencv_haartraining_engined.lib
opencv_highgui243d.lib
opencv_imgproc243d.lib
opencv_legacy243d.lib
opencv_ml243d.lib
opencv_nonfree243d.lib
opencv_objdetect243d.lib
opencv_photo243d.lib
opencv_stitching243d.lib
opencv_ts243d.lib
opencv_video243d.lib
opencv_videostab243d.lib
Note that the filenames end with "d" (for "debug"). Also note that if you have installed another version of OpenCV (say 2.4.9) these filenames will end with 249d instead of 243d (opencv_core249d.lib..etc).
Click Ok to close the dialog. Click Ok on the project properties dialog to save all settings.
NOTE:
These steps will configure Visual C++ for the "Debug" solution. For "Release" solution (optional), you need to
repeat adding the OpenCV directories and in Additional
Dependencies section, use:
opencv_core243.lib
opencv_imgproc243.lib
...
instead of:
opencv_core243d.lib
opencv_imgproc243d.lib
...
You've done setting up Visual C++, now is the time to write the real code. Right click your project and select Add → New Item... → Visual C++ → C++ File.
Name your file (e.g: loadimg.cpp) and click Ok. Type the code below in the editor:
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main()
{
Mat im = imread("c:/full/path/to/lena.jpg");
if (im.empty())
{
cout << "Cannot load image!" << endl;
return -1;
}
imshow("Image", im);
waitKey(0);
}
The code above will load c:\full\path\to\lena.jpg and display the image. You can
use any image you like, just make sure the path to the image is correct.
Type F5 to compile the code, and it will display the image in a nice window.
And that is your first OpenCV program!
3. Where to go from here?
Now that your OpenCV environment is ready, what's next?
Go to the samples dir → c:\opencv\samples\cpp.
Read and compile some code.
Write your own code.
I have been through every option to try to find a way to get the IDE to let me create a new win32pject without precompiled headers. I have read every thread on this forum with the words "precpmpiled headers" in it and the closest I got was:
Precompiled Headers
Using 2008 pro (not express, althought the behaviour seems to be similar) I go to:
File -> New -> Project
This opens the New Project dialog in which I select Visual C++ Win32 Project, enter a name and hit OK.
THen I get the "Win32 Application Wizard". With the Application Type set to "Windows Application", the application settings pane will not allow me to uncheck the pre-compiled headers. THe check box is greyed out. IF I choose "Console Application" I can uncheck it, but I am creating a GUI app.
WHen I click Finish I get 6 yards of code in xxx.cpp, four header files and the obligatory stdafx.cpp.
Perhaps I could remove and delete all this stuff and the go into the properties and turn off PCH, but thats a hasssel for the many small project examples I want to write.
I just want an empty project that will compile to a win32 app, so how do i change the PCH default to NONE?
You could make your own template to do this, or you could edit the default one. The relevant wizard can be found here:
C:\Program Files\Microsoft Visual Studio 9.0\VC\VCWizards\AppWiz\Generic\Application
Obviously if you're gonna edit the default template, backup the folder first.
I'll show you how to get started on editing it.
First of all you need to tell the wizard script that you don't want precompiled headers. Edit this file in your favourite text editor:
\scripts\1033\default.js
Find this line:
var Pch = wizard.FindSymbol("PRE_COMPILED_HEADER");
and comment out some of the lines below it like this:
// if ((strAppType == "LIB" || ((strAppType == "CONSOLE") &&
// !wizard.FindSymbol("SUPPORT_MFC") && !wizard.FindSymbol("SUPPORT_ATL"))) && !Pch)
{
AddFilesToProjectWithInfFile(selProj, strProjectName);
SetNoPchSettings(selProj);
}
// else
// {
// AddFilesToProjectWithInfFile(selProj, strProjectName);
// SetCommonPchSettings(selProj);
// }
Now open this file:
\templates\1033\Templates.inf
and find the first occurrence of [!else] and delete these 3 lines below it:
stdafx.h
targetver.h
stdafx.cpp
This will give you a project without stdafx.cpp/.h or targetver.h, and the CPP file will not try to use a PCH. However it won't build because we haven't added any #includes to the appropriate header files. I'll leave that for you to figure out :)
(you can edit the files that get generated automatically by modifying the files in \templates\1033)
either choose an empty project, or create your own wizard in which you use a template. Since you say you don't want to change properties the whole time, I'd also strongly suggest using property sheets (vsprops). This way, you create an empty project, add the property sheets you want, and you'r ready to go. No more fiddling with properties, and each project uses the same set.
Mark the "Empty Project" check box in the "additional options", in the Application Settings dialog.
The "Empty Project" option will create a project without precompiled headers. At least, this is what I get on Visual Studio 2008 SP1.
It's true that the "Use precompiled headers" remain checked, but the project will have the property UsePrecompiledHeader="0" and the wizard won't create the files.
I'm jumping way late on this bandwagon, as I'm having the same issues for VS2010.
I'm not sure if this solution would apply for VS2008.
Since there are no settings or options under tools which would enable me to default to an empty project, I searched around and found the following:
in the folder
C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\VCWizards\AppWiz\Generic\Application\html\1033
there is a file named default.htm
in the </HEAD> section, there are two lines:
<SYMBOL NAME="EMPTY_PROJECT" TYPE=checkbox VALUE=false></SYMBOL>
<SYMBOL NAME="PRE_COMPILED_HEADER" TYPE=checkbox VALUE=true></SYMBOL>
which I replaced with
<SYMBOL NAME="EMPTY_PROJECT" TYPE=checkbox VALUE=true></SYMBOL>
<SYMBOL NAME="PRE_COMPILED_HEADER" TYPE=checkbox VALUE=false></SYMBOL>
(in other words, I just switched true and false on those lines)
and now I have an empty project by default when I create a console app.
I don't know the repercussions as to what it will affect when I do something other than console apps, but since I saved the original file, I can just revert to the old M$ settings.
You can just select 'empty project' under 'additional options'. Then you get a project with no precompiled headers, and no autogenerated files.
I don't know what it is with Microsoft's obsession with forcing precompiled headers even in the smallest test project. Presumably it's based in the same philosphy that gave us the macro hell that is windows.h, or the way even an empty project overrides two dozen project settings, making property sheets almost useless.
I suspect there's simply a strong mafia inside Microsoft's developer division, who's doing everything they can to prevent Visual Studio from becoming a useful tool for C++ developers. So far, they're doing a very good job of it.