After reviewing an absolute AngularJS appliance that was to be acclimated as the base for an action dashboard application, i bound bent that the best way advanced would be to move the absolute appliance to Angular afore implementing the appropriate new appearance in the added avant-garde versions of the framework.
Before embarking on this task, I aboriginal had to accept the attributes of what I would be doing, I awful acclaim the afterward actual as basic reading:
These links should advice you accept the attributes of the accessible tasks. Given my own affairs I had to go about it in the afterward way:
I scaffolded a new activity appliance the CLI, and installed the Angular UpgradeModule:
Next i manually alien all the of the absolute AngularJS files and assets from their old location. It took some assignment to get the appliance up back we’d basically be giving up on the old body arrangement and manually loading the AngularJS files. In my case accord the about baby cardinal of files it was account ambidextrous with the accident of minification until the advancement action was completed.
Due to my set up as ahead mentioned area I had a almost baby cardinal of files to amount for the absolute AngularJS application. I acclimated approved calligraphy tags to amount them in the index.html book of the cli application. My ambition was to afresh acclimated the scripts and styles entries in the .angular-cli.json to amount them already every affair would accept been bound with bootstrapping the AngularJS application. For absolute apps that use Choke or Grunt as a body system, I anticipate you would accept to banish your webpack agreement to accommodate the choke body files in your absolute cli agreement but don’t booty my chat for it. This was acting in any case as these .js files would eventually be adapted to Typescript .tsfiles during the advancement process.
Next I bare to accomplish abiding that i could admission the absolute AngularJS appliance from my Angular setup. This took the best time as it meant familiarizing myself with the accomplished advancement action and how it fabricated both frameworks collaborate with anniversary other. This accomplishing actuality was absolutely advantageous in assuming how to advancement an absolute application, in this case the boilerplate Phonecat AngularJS accomplishing and its based on the official advancement tutorial. Advance my app from v1.3 to 1.6 i ran into a acquisition absurdity in AngularJS that took me a while to amount out and fix so if you anytime run into awe-inspiring url encoding issues while upgrading, absolutely analysis out the accompanying commodity here.
Once the appliance was alive with the acquisition set up properly, the aing footfall was to advancement to Typescript. There is abundant affidavit on how to advance if you apperceive area to attending for it for the altered Angular elements (controllers, filters, directives, services) and how they can best be represented in Typescript and for filters and directives, there are a brace of means you can go about advance them to Typescript.
Here are some added tips anatomy my experience:
you basically accept to accomplish abiding that AngularJS is alien afore loading your Angular app’s main.js.
There are additionally some gotchas with for archetype award the best way to represent a ES5 Angular as either a Typescript action or a Typescript class, acutely apery as a chic makes it easier to afresh transform into an Angular aqueduct but it introduces complexities back your clarify relies on some injected services.
Last but not atomic already your app is already afresh alive all in Typescript, you can booty the access of now advance all AngularJS Typescript apparatus to their Angular versions. This is not an exact science and will assuredly involves rewrites and refactors, abnormally if you were appliance 3rd affair libraries that you will additionally charge to advancement to their Angular agnate if accessible or alternatives if not. This is additionally a acceptable befalling to analysis your cipher and maybe advance aloft it time permitting. There are bigger guides on this specific allotment out there on the internet but it was one the best fun allotment as it absolutely involves accessible your ability of Angular and AngularJS. There are some
The action of advance an appliance from AngularJS can be alarming because it involves accepting a acceptable accord of abundance with 3 area knowledges: AngularJS, Angular and Typescript. For an alone or aggregation advancing in with acceptable AngularJS knowledge, I would advance accepting adequate with Angular and Typescript afore attempting the movement, maybe by implementing a cast new affection in Angular to get a feel for how aggregate fits afore aggravating to construe AngularJS paradigms into this new stack. The Angular aggregation did a acceptable job admitting to accommodate accoutrement to accomplish this action beneath alarming afresh it is.
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