When I run my app in the iOS iPhone 6 simulator (or my physical iPad2) I get this error:
SyntaxError: Unexpected keyword 'const'. Const declarations are not supported in strict mode.
=> reactBoilerplateDeps.dll.js:4088
Which leads to the is-in-browser module included by jss:
export const isBrowser = typeof window === "object"
&& typeof document === 'object'
&& document.nodeType === 9;
export default isBrowser;
I'm using these packages:
material-ui#v1.0.0-beta.1
react-boilerplate#v3.4.0
How do I correct this? Maybe the transform-es2015-block-scoping plugin as per this question ?
The app works fine on my physical iPhone 6 and desktop browser(s) but not on my iPad2.
According to Can I Use this is fixed in [iOS] Safari 10, so you might be able to get away with telling people who run into this issue that their browser isn't supported, and they should update it, but that's really not a good solution.
Also, note that when twig.js hit this issue, their fix was to declare with the var keyword instead of const, so perhaps you should submit a bug report to is-in-browser about this.
It would also be a good idea to try to see if using the var keyword instead of const works for you, by editing the file where you found export const isBrowser ... to replace const with var. This information will help if you decide to submit a bug report, and if it does work, you could create a fork of their repository with your fix, and submit a pull-request.
Looks like is-in-browser was not built with correct babel settings. You can try going to node_modules/is-in-browser and run npm run build to rebuild it.
Related
I'm trying to get maps to work on .net MAUI and found this blog post (linked to from the official MAUI blog). https://www.cayas.de/blog/dotnet-maui-custom-map-handler
I've downloaded the repo linked at the end of the blog but I can't get it to run.
In the blog post the MapHandler code looks like this:
public static IPropertyMapper<IMap, MapHandler> MapMapper = new PropertyMapper<IMap, MapHandler>(ViewMapper)
{ };
But in the repo it looks like this:
public static IPropertyMapper<MapView, MapHandler> MapMapper = new PropertyMapper<MapView, MapHandler>(ViewMapper)
{ };
Neither of which work for me, as I get the error (at runtime) below.
The type 'MapControlDemo.Handlers.MapHandler' cannot be used as type parameter 'TViewHandler' in the generic type or method 'PropertyMapper<TVirtualView, TViewHandler>'. There is no implicit reference conversion from 'MapControlDemo.Handlers.MapHandler' to 'Microsoft.Maui.IElementHandler'
Confusingly there are another couple of errors that shouldn't be errors??
Any ideas? I contacted the author and he suggested it could be my maui version as it works for him, but I'm on the latest.
Perhaps the author was building on a Mac.
I've confirmed that an attempt to build on Windows results in a build error. VS Version 17.3.0 Preview 1.1
The error I got was
Error CS0311 The type 'MapControlDemo.Handlers.MapHandler' cannot be used
as type parameter 'TViewHandler'
in the generic type or method 'IPropertyMapper<TVirtualView, TViewHandler>'.
There is no implicit reference conversion from
'MapControlDemo.Handlers.MapHandler' to
'Microsoft.Maui.IElementHandler'.
MapControlDemo (net6.0-android) C:\...\maui-maps\Handlers\MapHandler.cs 6
HOWEVER, I was able to RUN on Android - by selected an Android emulator as target (so using net6.0-android) and pressing F5 - therefore that error is misleading.
Given that this is only implemented on iOS and Android, I recommend editing .csproj to REMOVE Windows platform. I also removed MacCatalyst (maybe that would work but I was going for simplest test):
Change:
<TargetFrameworks>net6.0-android;net6.0-ios;net6.0-maccatalyst</TargetFrameworks>
<TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net6.0-windows10.0.19041.0</TargetFrameworks>
To:
<TargetFrameworks>net6.0-android;net6.0-ios</TargetFrameworks>
Then I was able to build.
NOTE: Without adding a Google Maps ID, when ran on Android, the result was an empty map.
tl;dr Easiest way to test is on a Mac, targetting iOS.
I have a problem when I tried to integrate tiki with my LDAP server. In the test_ldap.php I wrote the code to debug according to this website (https://doc.tiki.org/LDAP%20authentication). This code returned a success. So I know that my LDAP is working fine. I have a problem at
$entry = Net_LDAP2_Entry::createConnected($this->_ldap, $this->_entry);
In the shiftEntry function in Search.php. When I return debug in here, it goes to ClassLoader.php and it go to
register_shutdown_function(function () {
TikiLib::events()->trigger('tiki.process.shutdown', []);});
In my opinion, maybe the problem is the
spl_autoload_call
The spl_autoload_call function called Net_LDAP2 which extends PEAR somewhere before this line in Search.php. This would lead both Net_LDAP2 and PEAR and PEAR_ERROR... Then when it comes to Net_LDAP2_Entry class, it would also load PEAR.... Would this create a fatal error?
I keep having blank screen in my tiki. Tried to cut the code from Search.php to the test_ldap.php to test. It has the same problem.
I am using:
Version 16.2
OS: Clear OS
Thanks for your help. I am blocked now.
I think this may be a good start: https://dev.tiki.org/item6283. If you look in the comments by albertgi he states changing some function names in PEAR.php. I was having LDAP integration problems and this was one of the key problems.
Apologies for the lack of precision in the question, but I'm not completely sure which of possibly many things I'm doing wrong here.
I'm relatively new to Coffeescript and also geo applications in general, but here goes:
I've got a working (simple) Meteor (.7.0.1) application utilizing coffeescript in both client and server. The issue I'm having occurs when attempting to utilize TopoJSON encoded files to create a layer of US congressional districts. (the purpose of the app is to help highlight voter suppression in the US)
So, a few things: Typically in a non-Meteor app, I would just load the topoJSON file like so:
$.getJSON('./data/us-congress-113.json', function (data) {
var congress_geojson = topojson.feature(data, data.objects.districts);
congress_layer.addData(congress_geojson);
});
Now of course this won't work in Meteor because its not asynchronous.
One of the things that was recommended here on SO was to not worry about reading the file, and to instead change the json file to .js, and then set the contents (which are of course just an object) equal to a variable.
Here's what I did:
First, I changed the .json file to a .js file in the server directory, and added the "congress =" to the beginning of the file. It's a huge file so forgive me for omitting the whole object.
congress = {"type":"Topology",
"objects":
{"districts":
{"type":"GeometryCollection","geometries":[{"type":"Polygon"
Now here's where everything starts to give me issues:
In the server.coffee, I've created a variable like so to reference the congress object:
#congress_geojson = topojson.feature(congress, congress.objects.districts)
Notice how I'm putting the # symbol there? I've been told this allows a variable in Coffeescript to be globally scoped? I tried to also use a Meteor feature called "share" where I declare the variable as "share.congress_geojson". That led to the same issues which I will describe below.
Now in the client.coffee file, I'm trying to call this variable to load into a Leaflet map.
congress_layer = L.geoJson(null,
style:
color: "#DE0404"
weight: 2
opacity: 0.4
fillOpacity: 0.1
)
congress_layer.addData(#congress_geojson)
This isn't working, and specifically (despite attempts to find other ways, the errors I'm getting in the console are:
Exception from Deps afterFlush function: TypeError: Cannot read property 'features' of undefined
at o.GeoJSON.o.FeatureGroup.extend.addData (http://localhost:3000/packages/leaflet.js?ad7b569067d1f68c7403ea1c89a172b4cfd68d85:39:16471)
at Object.Template.map.rendered (http://localhost:3000/client/client.coffee.js?37b1cdc5945f3407f2726a5719e1459f44d1db2d:213:18)
I have no doubt that I'm missing something stupidly obvious here. Any suggestions or tips for what I'm doing completely wrong would be appreciated. Is it a case where an object globally declared in a .js file isn't available to code in a .coffee file? Maybe I'm doing something wrong on the Meteor side?
Thanks!
Edit:
So I was able to get things working by putting the .js file containing the congress object in a root /lib folder, causing the object to load first, and then calling the congress object from the client. However, I'm still wanting to know how I could simply share this object from the server? What is the "Meteor way" here?
If you are looking for the Meteor way to order the loading of files, use the Meteor.startup function and put the initialization code there. That function is the $.ready of the Meteor world, i.e., it will execute only after all your files have been successfully loaded on the client.
So in your case:
Meter.startup ->
congress_layer.addData(#congress_geojson)
Here's what I'm currently using, which I think gets the job done, but there's got to be a better way:
func isWindows() bool {
return os.PathSeparator == '\\' && os.PathListSeparator == ';'
}
As you can see, in my case all I need to know is how to detect windows but I'd like to know the way to detect any platform/os.
Play:
http://play.golang.org/p/r4lYWDJDxL
Detection at compile time
If you're doing this to have different implementations depending on the OS, it is more useful to
have separate files with the implementation of that feature and add build tags to each
of the files. This is used in many places in the standard library, for example in the os package.
These so-called "Build constraints" or "Build tags" are explained here.
Say you have the constant PATH_SEPARATOR and you want that platform-dependent, you
would make two files, one for Windows and one for the (UNIX) rest:
/project/path_windows.go
/project/path_unix.go
The code of these files would then be:
path_windows.go
// +build windows
package project
const PATH_SEPARATOR = '\\'
path_unix.go
// +build !windows
package project
const PATH_SEPARATOR = '/'
You can now access PATH_SEPARATOR in your code and have it platform dependant.
Detection at runtime
If you want to determine the operating system at runtime, use the runtime.GOOS
variable:
if runtime.GOOS == "windows" {
fmt.Println("Hello from Windows")
}
While this is compiled into the runtime and therefore ignores the environment,
you can nevertheless be relatively certain that the value is correct.
The reason for this is that every platform that is worth distinguishing needs
rebuilding due to different executable formats and thus has a new GOOS value.
Have you looked at the runtime package? It has a GOOS const: http://golang.org/pkg/runtime/#pkg-constants
It's 2022 and the correct answer for go 1.18+ is:
At runtime you want:
if runtime.GOOS == "windows" {
// windows specific code here...
}
If you need to determine the filesystem path separator character
Use: os.PathSeparator
Examples:
c:\program files
/usr/local/bin
If you need the Path List separator as used by the PATH environment variable
Use: os.PathListSeparator
Examples:
/usr/local/bin:/usr/local:
"C:\windows";"c:\windows\system32";
Since this is an older question and answer I have found another solution.
You could simply use the constants defined in the os package. This const returns a rune so you would need to use string conversion also.
string(os.PathSeparator)
string(os.PathListSeparator)
Example: https://play.golang.org/p/g6jnF7W5_pJ
I just stumbled on this looking for something else and noticed the age of this post so I'll add a more updated addition. If you're just trying to handle the correct filepath I would use filepath.Join(). Its takes all of the guesswork out of os issues. If there is more you need, other than just filepath, using the runtime constants (runtime.GOOS & runtime.GOARCH) are the way to go: playground example
I tested in Go 1.17.1 which really worked for me.
package main
import (
"fmt"
"runtime"
)
func main(){
fmt.Println(runtime.GOOS)
}
Output:
darwin
With regards to detecting the platform, you can use Distribution Detector project to detect the Linux distribution being run.
The first answer from #nemo is the most apropiate, i just wanted to point out that if you are currently a user of gopls language server the build tags may not work as intended.
There's no solution or workaround up to now, the most you can do is change your editor's lsp configs (vscode, neovim, emacs, etc) to select a build tag in order to being able to edit the files with that tag without errors.
Editing files with another tag will not work, and trying to select multiple tags fails as well.
This is the current progress of the issue github#go/x/tools/gopls
Hi all I'm trying to upload a image when creating a item in my app, however the action fails returning the following error: The mimetype of file 'mytestimage.jpg' could not be detected.
I've tried adding a Mime Type validator but the error persists, can anyone tell me where I'm going wrong in the code below.
// Image uploads
$images = new Zend_Form_Element_File('images');
$images->setMultiFile(2)
->addValidator('IsImage')
->addValidator('Size',false,'5242880')
->addValidator('Extension',false,'jpg,png,gif')
->addValidator('ImageSize',false,array(
'minwidth' => 250,
'minheight'=>250,
'maxwidth'=>500,
'maxheight'=>500
))
->setValueDisabled(true);
Many thanks in advance.
Graham
I had the same problem.
Zend_Frameworks tries to determine the mimetype in two ways:
First it tries to use the PECL FILEINFO-Extension (which is not installed on every server)
if the extension is not istalled it tries to use mime_content_type (a php function). This function however is deprecated as of php version 5.3
So in this case I guess your hoster is using php version 5.3 and has not installed the PECL FILEINFO-Extension. Same goes unfortunately for my hoster :(
Here are more details of the two ways in the php-manual:
http://de.php.net/manual/en/function.mime-content-type.php
http://de.php.net/manual/en/ref.fileinfo.php
By the way. You can see the code ZF uses in the file "Zend\File\Transfer\Adapter\Http.php" (lines 1281-1318: methodname is _detectMimeType