#ngx-translate with lazy-loaded module in Angular 5 - angular5

I'm using #ngx-translate for language handling in an Angular 5 app I'm creating. The app has two feature modules, one lazy loaded and one eager loaded.
The problem is that the translate pipe works fine in the eager-loaded module but not the lazy-loaded one. How can I fix that?

In my lazyload modules i had to add this to imports:
TranslateModule.forChild({
loader: {
provide: TranslateLoader,
useFactory: HttpLoaderFactory,
deps: [HttpClient]
}
})
also in lazyloaded component i did something like that:
import {TranslateService} from '#ngx-translate/core';
in constructor:
private translate: TranslateService
and finally onInit:
this.translate.use(language);
And it is working just fine.

I've also been struggling with the same problem and have yet to find a feasible answer.
The kind folks at Angular are working on i18n, but this may take more time.
While not ideal, you might want to check out the following article:
“How to split your i18n file per lazy loaded module with ngx-translate?” #frogeret https://medium.com/#TuiZ/how-to-split-your-i18n-file-per-lazy-loaded-module-with-ngx-translate-3caef57a738f

You can check the ngstack/translate library that works for Angular and Ionic apps. Also provides support for lazy loading, page title translations, custom pipes and many other great features.

Related

How to use Troisjs in Nuxt 3 project

I would like to use TroisJS (three.js wrapper for Vue) with Nuxt.js. According to the TroisJS documentation (https://troisjs.github.io/guide/install.html#existing-vuejs-3-project) I need to add it to my project like:
import { TroisJSVuePlugin } from 'troisjs';
app.use(TroisJSVuePlugin);
However, I don"t know how to figure out where I should put this code. I would expect the nuxt.config.js file, but I don't seem to quite get it where it should go.
I decided to use TroisJS and not three.js because I thought the former might be easier to import and use. If importing three.js directly is easier, I don't mind using it.
Thank you very much for any help!
In /plugins folder add new file named troisjs-plugin.js with the following content :
import { TroisJSVuePlugin } from 'troisjs';
export default defineNuxtPlugin((nuxtApp) => {
nuxtApp.vueApp.use(TroisJSVuePlugin )
})
I found a repo with some testing with Trois and Nuxt 3, probably outdated and maybe some apis have changed, but if you wanna check it out: alvarosabu/nuxt3-trois
Also, there's an official repo from the Trois author with a Nuxt 3 custom plugin (probably outdated too) here

Included Plugin in Nuxt bad rendering performance

I am adding a snippet from this codepen https://codepen.io/soulwire/pen/Ffvlo to display a particle animation. I'm adding it like this in my nuxt.config.js file:
plugins: [
{ src:'~/plugins/particles.js', mode:'client'}
],
It shows up and works but unfortunately the performance is so bad that the animation is not really perceivable as it should be. Is there anything I could do differently so that the performance is the same as on the codepen?
Also i am aware that this is now registered as a global plugin and always loaded. Is there a way to add it only to a specific site?
Thanks in advance!

Fast refresh in react native always fully reload the app

This question has been asked several times here(here the most relevant,Another example), but no solution has been proposed in any of them. So I have 2 questions to you guys:
Any idea why it wouldn't work in a large project? I mean, there are any know issues with fast refresh related to the size of the project or the packages he includes that will make fast refresh stop working? There is any way to fix it?
Is there a convenient way to edit an internal page in the app without using a fast refresh (without running the page independently, since it depends on all the logic of the app)?
This bug really makes the development really difficult for me, and I find it hard to believe that professional developers have not found a way around this problem, Please help!
I'm using expo-cli(v3.26.2 - Expo SDK 38 that using react-native v0.62)
TLDR;
using default export with no name ALWAYS resulted in a full reload of the app without hot reload!
Details
So after a lot of months of pain, I accidentally found a strangely enough effect:
I usually write my react components in this syntax:
export default ({ ...props }) => {
...
};
and for some reason, changing a module that exports that way ALWAYS resulted in a full reload of the app without hot reload!
after months of pain, accidentally i found out that changing the export to:
const Test = ({ ...props }) => {
...
};
export default Test;
completely fixed the issue and now hot reload works perfectly fine!
I did not saw this effect mentioned in a single place on the internet!
From react-refresh-webpack-plugin troubleshoot section
Un-named/non-pascal-case-named components
See this tweet for drawbacks of not giving component proper names.
They are impossible to support because we have no ways to statically
determine they are React-related. This issue also exist for other
React developer tools, like the hooks ESLint plugin. Internal
components in HOCs also have to conform to this rule.
// Wont work
export default () => <div />;
export default function () {
return <div />;
}
export default function divContainer() {
return <div />;
}
There is an other way to obtain this weird behavior.
When you export a simple function:
//if we export this function in the entry file of the app,
//it will break the hot reload feature without any warnings.
export function someName() {
};
from the entry file of your app (with typescript template expo init nameApp the file is App.tsx)
It will exactly produce a full reload of the app rather than a hot reload.
This is vicious because on ios simulator it full reloads the app without the modification whereas in android it full reloads the app WITH the modification. So you'll take some time to realize that this is not a hot reload in android but a full reload.
IDK why ios don't display the modification like android does..
But when you think at the problem, we shouldn't export multiple things from the entry point of an app. This sounds weird isn't it ?
TLDR;
During development, I had your problem with the infinity "Refreshing..." message. As well as incomprehensible errors like "unknow resolve module 2" and "bundle error..."
Details
the solution turned out to be unexpected, I changed "require()" to "import" in the main index.js file
before
const module = require('some-module')
after
import module from 'some-module';

How to prefetch images from ionic tags for a PWA?

PROBLEM OBSERVATION
I'm trying to eagerly load the app and the it's images. In Google Chrome I can set the Ionic4/Angular8 PWA to offline. I still can browse all the pages since I loaded them lazy - AND - the PreloadAllModules is imported to the app-routing.module.ts
#NgModule({
imports: [
RouterModule.forRoot(routes, { preloadingStrategy: PreloadAllModules })
],
exports: [RouterModule]
})
export class AppRoutingModule {}
However, the icons, which I use <ion-icon slot="start" name="Notifications"></ion-icon> are not prefetched and thus will not appear in offline mode (if the page was not visited before).
I do understand that prefetched images need to be set in the ngsw-config.json file, which will be turned into the ngsw.json after the build command run. That file lists all the images and other statics to prefetch.
DEAD-END APPROACHES with the ngsw-config.json
I quickly thought about prefetching the entire svg folder. That is almost half a MB.
Adding each single image to the ngsw-config.json file. Cumbersome and prone to forget new icons.
QUESTION
Is there a specific Ionic 4 approach to this that detects what icons to prefetch?
Any Angular 8 approach to this?

How to include legacy module in Dojo AMD

I'm trying to migrate an application from dojo 1.6 to version 1.9.1, and I've a legacy module that I didn't want to migrate yet (it's pretty complex and will take me some time to understand). The Dojo docs indicate you can load legacy modules along with AMD modules, but when I try, I'm getting a "dojo.provide is not a function" when the loader tries to load the legacy module.
My script:
require([..., "agsjs/dijit/TOC","dojo/domReady!"],
function(..., TOC) {
on(map,'layers-add-result',function(results){
//Add Legend
var toc = new TOC({
map: map,
layerInfos:legendLayers
}, 'legendDiv');
toc.startup();
});
});
The first line of code of the module:
dojo.provide('agsjs.dijit.TOC');
Everything works until the loader tries to load the agsjs/dijit/TOC module, where I get a "dojo.provide is not a function" error. How do I solve this without having to refactor the entire module to AMD? Thanks
In order for legacy modules to load, you need to run the loader in legacy mode, which means you cannot set async: true. As long as you are running with async: false (the default), you will be able to load and use legacy modules from AMD modules, and vice-versa.
A good point of AMD is that you don't have to use "dojo" and "dijit" global variables now. If you don't want change all those dojo.xxx calls in your old modules, you may try to wrap you old module in a
define([
"dojo/_base/declare",
"dojo", "dijit",
...
], function(declare, dojo, dijit) {
return declare([/*your parent widgets*/], {
//your old module content at here, maybe you need make little modifications of your old module
});
});
So that those dojo.xxx functions may still works.
This link may provide everything you need:
http://dojotoolkit.org/reference-guide/1.9/releasenotes/migration-17.html