#emberjs

here's a question... so I was that kid in computer class in highschool who avoided JavaScript for some reason.. i've learned VB6, in the 90s. and recently ruby/rails.. and trying to get with the times here.. i'm having some strange relationship with JS. I understand it. but I'm just not excited about it at all. I've been looking at tutorials, and introduction to JS classes.. and its just like in one ear out the other. i understand it.. but im just not

where most of you guys are at being able to write something from scratch...

what would you guys recommend as a learning resource?

i've completed TeamTreehouse intro to JS, and JS basics... and watched the codeschool JS intro.. and its like yah. my brain's treating it like "cool story bro"

and I'm pretty sure I need to learn JS.

ivanskie: https://leanpub.com/javascript-allonge

also http://eloquentjavascript.net/

ivanskie: it's free to read online or you can buy ebpub / pdf etc

hmmm. kewl

thanks

I'll have to try to read those. thanks

I have the same relationship with PHP. but I think i'd really prefer to keep it there.

i can reed and tell you what the code is doing line by line. but sitting down and writing something.. eeeehhh i'd prefer ruby.. i've actually forgotten a lot of VB. except Im thankful for one thing from VB that is part of my DNA now, its like hard wired into my brain about almost any situation be it real life or computer related.. "IF blah blah, THEN blah blah, ELSE blah blah, END" or something like that

I've been eyeing typescript, thinking that it might be closer to the subset of general statically checked programming that I'm comfortable doing. There are a number of language that compile to JavaScript, and while it's good idea to know it through and through, you might end up writing in some other language in the end

i was looking at ES6.. looks like its a lot cleaner than JS currently...

why isn't everyone jumping on the ES6 bandwagon?

lol

ivanskie: everyone in ember-land is

it's a bit new, and legacy's always an issue, the usual suspects

these all the questions google will probably answer. but.. is ES6 not supported natively as JS in browsers right now, or is that really more to do with legacy code.. like if I were to learn ES6 (by shredding these books and eating all of it, for instant learning -- i wish) and write an app from scratch.. would it work or no?

ivanskie: ember code *is* es6 code

ES6 is not yet going to run in any browser I think.

ivanskie: (assuming you are using ember-cli)

but there are so many ; and extra {}...

ah

no native support i understand.

ivanskie: no, it's all transpiled

I wish people would just call it "compiling". Is there even a technical difference?

i ignored JS because back in the day it was just for building expanding menus with sub menus, and popping up interesting messages, and that sort of junk... now everyone's on it (i haven't been a developer for last 18 years.. if I finished VB6 two-part course, i probably would have but i didnt get to take part2 where all important stuff was happening.. so i ended up going hardware instead of software..

alankila: yes, generally transpiling means source -> source

w/e semantics..

so there's no AST translation, and that's the reason?

the transpiling/compiling was fairly obvious conclusion there..

lol

if ember is in ES6 and in browser u get js.. there's no other way to get there.

alankila: babel has an AST

alankila: https://babeljs.io/docs/usage/api/

^ see what i did there... IF THAT THEN THIS. lol stupid vb..

hmh. Okay so I'm going to just think there's no reason to call it transpiler. It's just normal compiling, the fact that the output is generally nicely formatted code in language other people view as source is probably the reason

oh lol here's a thought. might be end of the world...

when ES6 is accepted as widely as JS.. what are you going to do about EmberJS.. JS part..? lol EmberES?

ahhh people's brains are going to explooodee..

alright i should go back to work

lolz

ivanskie: not sure what you mean

ivanskie: ember already uses ES6

name: EmberJS

ivanskie: (ember cli anyway)

ivanskie: oh, you mean the name?

ya

the name

lol

ivanskie: I think esnext will always be also referred to as javascript too

ivanskie: ecmascript and javascript have long been synonyms

ivanskie: https://en.wikipedia.org/wiki/ECMAScript

if only i knew emberjs right now as well as all of you... all this free time i have at work i'd be spending building useless apps only i'd use here at work. and maaaybe someone else

by the way which browser is furthest along in ES6 support, or are people still waiting some official rubber stamp so that the standard is final before implementing it?

alankila: https://kangax.github.io/compat-table/es6/

I mostly want the lambda expressions, and maybe the for-of

is ECMAScript open source? or proprietary like delphi (aside from having to use proprietary gui like delphi)

alexspeller: oh wow, thanks

oh netscape.. brings so many memories

still quite a bit of red in the firefox/chrome columns. But eyeballing it, looks like firefox is closer

also surprisingly, Edge is not half bad apparently.

holy cow... v8 jscript rhino.. blah blah.. seriously? (redundant, rhetorical question)

Still, it's going to take until that FF42 -- which seems like it's very interesting browser release -- until it gets good.

on the other hand, I have Chrome 45 and (x) => 1 compiled in console

so it's right about now that the goodies are landing!

oh yah io.js how's that going..

is anyone using it aside from the original developers of node, ahem.. i mean io?

ooh ic.. so iojs to node is what fedora to redhat?

is it possible to pass an object to an {{#if block helper? e.g. {{#each comment in comments}}{{#if canDeleteComment comment}}<do something> ...?

on ember 1.8

holler: #if (canDeleteComment comment) possibly if you have such a helper

ivanskie: they are merging apparently http://thenextweb.com/dd/2015/06/16/node-js-and...

oh boy

not 100% sure what you were asking though

alankila: I get error when doing in the form that I pasted

holler: I don't think so on 1.8

holler: yes, I assume that #if is one-argument thing

alexspeller: darn ok, I wonder how I can achieve this?

I want to conditionally show a delete button

though given how little I know of htmlbars, I might be wrong.

and dont have the luxury of upgrading ember

holler: use a computed property

alexspeller: but how can I pass in the current comment? Im doing this inside an {{#each loop

holler: or write a helper called canDeleteComment which can answer the question about any comment.

ok

use ( ) to invoke a helper, it's s-expr style, sort of like lisp

or, Component™

hah

holler: you don't pass in the current comment

alankila: 1.8 doesn't have nested expressions

holler: you make a computed property that returns true or false

e.g. you can generate arbitrarily complex computation in style of #if (combine-or (some-condition arg1 arg2) (other-condition arg3 arg4))

holler: with no arguments. Just dependent keys

alankila: not in 1.8

oh, damn

well that's too bad, then it's severely crippled

:o

going-out-of-my-mind-if-I-would-have-to-deal-with-that-crippled

thanks for the useful info :P

amazingly, people managed

yeah apparently you need to return an instance of comment that has a property your #if can check

can you even imagine

just barely. I'm not very fond of primitive templating languages, though I understand that the realities of observing changes and doing partial refreshing tends to impose limitations.

which is why I'm pleased that someone apparently managed to create that super-dynamic get helper

Regarding to the authentication add-ons for Ember 2.0 that I mentioned earlier. Does anyone else use any different add-on rather than the ember-simple-auth.

alankila: I have had this discussion here before regarding templating language :p

I can't seem to find any other good one. : (

khoapham1: I use ember-simple-auth with ember-cli-simple-auth-token

I recommend

khoapham1: I rolled my own as a session service.

that is if you want to use jwt for authentication

which is nice and stateless

ember-simple-auth is deprecated for Ember 2.0 throwing container.lookup is not a function error.

holler: Are you using Ember 2.0 or still 1.x?

khoapham1: Im pretty sure that deprecation will be resolved in next release