I've built a webpage using html, css, javascript, and jquery. I just started learning Angular.js. My question is do I have to rebuild the site in order to meet certain angularJS conventions or is everything I will be adding for Angular unobtrusive to my previous built code?
It is actually recommended that you NOT use jquery with angular for starters. To get the most out of angular you will most likely have to re-architect your website. The reason for this is that Angular is a framework; jquery is a library. Their concerns are different.
When we think in Angular terms, we think about:
Views, not DOM elements
Directives, not event bindings
Models as a projection of view
Functionality separation
See here for more in depth explanation: http://www.ng-newsletter.com/posts/angular-for-the-jquery-developer.html
Related
I develop in Angular 2+ for quite a while using Angular Material, but the documentation of AngularJS Material is more complete and wide then the one to Angular 2+, there is a way to use AngularJS Material components in an Angular 2+ project? More specific on Angular 6
You will have to run both frameworks simultaneously to make it work. While that certainly is possible, it usually isn't desired, especially if there isn't a clear separation between where the AngularJS application and the Angular 2+ application ends and begins (for instance as there would be if you're migration an AngularJS application to Angular 4). AngularJS components, spread around an Angular 2+ application doesn't seem like a desirable situation.
Here are some additional issues:
Component names may clash
Routing may interfere with each other
Communication between AngularJS components and Angular 2+ components is difficult
I have two suggestions.
Either do away with the AngularJS dependency and clean up after the former co-worker.
Or, create thin wrapper components around Angular2 Material components, that has the same name and signature as the AngularJS material components. This is only possible if the components work somewhat similarly.
I recommend the first suggestion, since the latter might only be plausible for the most simple components.
I have to integrate an existing UI application to a REST based back end. The UI is a single html page that uses JQuery + CSS to create a sliding tab experience. Both the UI and REST application are Spring Boot apps.
I'm new to Javascript frameworks. AngularJS made a lot of sense to me for data binding and updating the DOM.
However, now that I am trying to do the integration, there is a .js include in the UI that contains a massive set of JQuery plugins (they are just pasted in one after another).
AngularJS functionality like 'ng-repeat' does not work with this file included. The UI application does not work without this include.
I believe the solution is to put all JQuery Plugins into a Angular Directive (Initialising jQuery plugin (RoyalSlider) in Angular JS). This looks like a painful task.
Are there other frameworks that would work with this?
I have found some threads suggesting a ground up approach with Angular ("Thinking in AngularJS" if I have a jQuery background?), but I'm stuck with this current UI app's structure.
Suggestions? I'm thinking of using JQuery to acquire the JSON and inject it into the UI and adding Thymeleaf for its fragments.
After some research I have found that using JQuery is the way to go if your application was built with JQuery. If I could do it again, perhaps Angular should have been the base for the UI application. However,after some exploration, I have found JQuery does a lot of cool things around AJAX and Dom manipulation. When used with ThymeLeaf in Spring Boot, you end up with a power set of UI tools.
i want to implement Angular JS, Angular JS UI plugins and bootstrap in my ASP MVC 5 apps. Some people say Jquery is still in use in Angular JS part, so could any one here please explain when and where i would need to use JQuery in Angular Js code?
Angular doesn't include jQuery but a light-weight plugin called jq-lite. This provides a lot of the methods that jQuery does, but not all of them.
It specifically has to do with Angular.element. You can take a look at the documentation here
https://docs.angularjs.org/api/ng/function/angular.element
jqLite is a tiny, API-compatible subset of jQuery that allows Angular to manipulate the DOM in a cross-browser compatible way. jqLite implements only the most commonly needed functionality with the goal of having a very small footprint.
Basically, there are a couple of pointers to keep in mind
Keep all DOM logic outside of the controllers. Use custom directives on attributes for that.
Instead of simulating mouse events, use their angular counterparts. Examples include ng-click and ng-mouseover. Add these directives to the elements in the form of attributes.
Instead of adding classes, use ng-class
If you are using jquery or jqlite, be sure to include the jquery script before the angular script.
Just learning , new to this site.
Is it possible to have ExtJs and AngularJS together in same application ?
or is it worth to have both of them in same application ?
Thanks
Sometimes people use ExtJs components in an AngularJS app.
AngularJS is flexible enough to integrate with any other Javascript code/libraries as long as the library has public events to respond to. I would recommend going through the Directive and scope documentation on how to effectively create directives and respond to scope events.
Personally I do not feel ExtJS and AngularJS would be needed together, unless you are forced to use it like me. There is http://angular-ui.github.io/ that brings in a lot to the table. Again any given JQuery plugin can be integrated using directives, filters etc in AngularJS. So you may want to investigate into that before trying to bother with ExtJS.
I am quite new in Angular world. I am working on an application which involves Angular JS. I've been confronted with the requirement to implement custom scrollbar. My application does have jQuery too, but so far most part of my project uses Angular. So should I be using some jQuery widget or implement it via Angular.
If Angular, can you provide me pointers on how should I proceed?
You should probably implement it in the Angular way, i.e., building / using a custom Angular's directive:
http://docs.angularjs.org/guide/directive
Learning resources for Angular:
https://github.com/jmcunningham/AngularJS-Learning
You can always use jQuery plugins / widgets in an Angular app, but in that case the best way is to encapsulate each plugin within a directive. Angular-UI is a project which does that for several components, including Twitter Bootstrap:
http://angular-ui.github.io/
I'm aware of angular-perfect-scrollbar, a simple Angular's directive for perfect-scrollbar, but haven't tested it yet:
https://github.com/itsdrewmiller/angular-perfect-scrollbar
http://www.yuiazu.net/perfect-scrollbar/
Depending on what your requirements are, you can style your scrollbars strictly in CSS and not need any JavaScript:
http://css-tricks.com/custom-scrollbars-in-webkit/