Re: Interesting - NODE for z/OS

[David Crayford]

On 23/02/2018 8:56 PM, Scott Chapman wrote:

While ES6 does add some interesting features to the language, people have done 
useful work in server-side well before ES6 came along.


It adds essential features to the language like "let" and "const" which 
prevent nasty variable hoisting surprises! JavaScript is a flawed 
language but an important one. Technologies like Node have enabled a new 
wave of isomorphic applications and full stack developers. What is 
interesting is new technologies hitting the browsers like asm.js so 
client side code can be written in any language. JavaScript will not go 
away anytime soon but better languages will replace it in the coming 
decades.



Java 8 contained Nashorn with ES5 support.
Java 6 & 7 contained the Rhino JavaScript engine (although at what level of 
Javascript, I forget at the moment). You could also use the external Rhino Jars if 
you needed a version later than the embedded Rhino version.

I remember being surprised several years ago at how well JavaScript (using 
Rhino) ran on z/OS.

Scott Chapman

On Fri, 23 Feb 2018 14:16:18 +0800, David Crayford  wrote:


Java 9 comes with an ES6 compliant Nashorn JavaScript engine
https://www.oracle.com/corporate/features/nashorn-javascript-engine-jdk9.html.
ES6 is essential as it
turns JavaScript into a reasonable language. Those poor souls without a
zIIP might be a bit gun shy of running Java though!

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Re: Interesting - NODE for z/OS

[Scott Chapman]

While ES6 does add some interesting features to the language, people have done 
useful work in server-side well before ES6 came along. 

Java 8 contained Nashorn with ES5 support. 
Java 6 & 7 contained the Rhino JavaScript engine (although at what level of 
Javascript, I forget at the moment). You could also use the external Rhino Jars 
if you needed a version later than the embedded Rhino version.

I remember being surprised several years ago at how well JavaScript (using 
Rhino) ran on z/OS.

Scott Chapman 

On Fri, 23 Feb 2018 14:16:18 +0800, David Crayford  wrote:

>Java 9 comes with an ES6 compliant Nashorn JavaScript engine
>https://www.oracle.com/corporate/features/nashorn-javascript-engine-jdk9.html.
>ES6 is essential as it
>turns JavaScript into a reasonable language. Those poor souls without a
>zIIP might be a bit gun shy of running Java though!
>
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Re: Interesting - NODE for z/OS

[David Crayford]

On 22/02/2018 3:54 PM, Timothy Sipples wrote:

If you're looking for a JavaScript implementation (without Node) for a z9BC
machine, I believe HostBridge's HB.js is compatible.


Java 9 comes with an ES6 compliant Nashorn JavaScript engine 
https://www.oracle.com/corporate/features/nashorn-javascript-engine-jdk9.html. 
ES6 is essential as it
turns JavaScript into a reasonable language. Those poor souls without a 
zIIP might be a bit gun shy of running Java though!


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Re: Interesting - NODE for z/OS

[John McKown]

On Thu, Feb 22, 2018 at 1:54 AM, Timothy Sipples  wrote:

> The IBM SDK for Node.js probably won't run on your z9BC machine, but you're
> welcome to try it. (Please let us all know.) The latest trial download is
> available here:
>
> https://developer.ibm.com/node/sdk/ztp/
>
> APAR UI46658 is surely required, so check for that.
>
> If you're looking for a JavaScript implementation (without Node) for a z9BC
> machine, I believe HostBridge's HB.js is compatible.
>

​We're not looking to run any language on our z/OS 1.12 system beyond
Enterprise COBOL 3.4. As strange as it seems, and for reasons I'm forbidden
to speak of, we are bring our "ported & outsourced" processing back onto
z/OS simply so that we can stabilise it and "port & outsource" it again in
2 to 3 years. End of my discussion on that under pain of death.

I just think that it is nice that IBM is putting some "new & better"
languages on z/OS. IMO, what is really better about these new languages is
the bundled functionality for TCP/IP, HTTP, regular expression, and so on.



>
> 
> 
> Timothy Sipples
>


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it.

Maranatha! <><
John McKown

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Re: Interesting - NODE for z/OS

[Timothy Sipples]

The IBM SDK for Node.js probably won't run on your z9BC machine, but you're
welcome to try it. (Please let us all know.) The latest trial download is
available here:

https://developer.ibm.com/node/sdk/ztp/

APAR UI46658 is surely required, so check for that.

If you're looking for a JavaScript implementation (without Node) for a z9BC
machine, I believe HostBridge's HB.js is compatible.


Timothy Sipples
IT Architect Executive, Industry Solutions, IBM Z & LinuxONE,
Multi-Geography
E-Mail: sipp...@sg.ibm.com

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Re: Interesting - NODE for z/OS

[David Crayford]

We've been using Node for internal tooling and IBM have done a good job. 
The Node eco-system is the fast growing of any language/runtime. Like 
I've said before the most exciting thing from my perspective is the 
clang compiler that ships with it.


One important feature that makes Node so scalable is libuv and it's 
async I/O. IBM have emulated epoll using standard poll so I can't see 
how it's ever going to scale like it does on other platforms. It's 
curious why they didn't use aio like the pollsets in the z port of the APR?



On 21/02/2018 9:12 PM, Jerry Callen wrote:

You don't have to build from source; you can get a downloadable SDK:

https://www.ibm.com/us-en/marketplace/sdk-nodejs-compiler-zos

There is a DeveloperWorks forum for node.js on IBM platforms (including z/OS 
and Linux on Z):
  
https://www.ibm.com/developerworks/community/groups/service/html/communitystart?communityUuid=39f4d6be-d936-4a36-8fbf-874bf4bde113


-- Jerry

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Re: Interesting - NODE for z/OS

[Martin Packer]

But in that case isn't the javascript running on the client? With node 
it's running on the server.

Cheers, Martin

Martin Packer

zChampion, Systems Investigator & Performance Troubleshooter, IBM

+44-7802-245-584

email: martin_pac...@uk.ibm.com

Twitter / Facebook IDs: MartinPacker

Blog: 
https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker

Podcast Series (With Marna Walle): https://developer.ibm.com/tv/mpt/or 
  
https://itunes.apple.com/gb/podcast/mainframe-performance-topics/id1127943573?mt=2


Youtube channel: https://www.youtube.com/channel/UCu_65HaYgksbF6Q8SQ4oOvA

IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> wrote on 
21/02/2018 15:01:53:

> From: "Barkow, Eileen" <ebar...@doitt.nyc.gov>
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date: 21/02/2018 15:02
> Subject: Re: Interesting - NODE for z/OS
> Sent by: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU>
> 
> CICS DOCTEMPLATES can include javascript code.
> 
> So NODE Is not the only thing that allows it.
> 
> 
> 
> -Original Message-
> 
> From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU
> ] On Behalf Of John McKown
> 
> Sent: Wednesday, February 21, 2018 8:05 AM
> 
> To: IBM-MAIN@LISTSERV.UA.EDU
> 
> Subject: Interesting - NODE for z/OS
> 
> 
> 
> I haven't really had a chance to look at this yet. But I thought others
> 
> here might be interested. It is NODE for z/OS. NODE is a "server side"
> 
> JavaScript engine. That is, it allows you to run JavaScript programs on
> 
> z/OS.
> 
> 
> 
> https://urldefense.proofpoint.com/v2/url?
> u=https-3A__github.com_ibmruntimes_node_releases_tag_ibm-2D6.13.0.
> 0=DwIGaQ=jf_iaSHvJObTbx-siA1ZOg=BsPGKdq7-Vl8MW2-
> 
WOWZjlZ0NwmcFSpQCLphNznBSDQ=x85RBflm3aMlm0FgBnkL4MExpjplPK_JEo0P0ANp4bE=aG5MvbKXog2YDJWhNK27zF5mpM7pM5vbwKfw6KZooUg=
> 
> 
> 
> Source only, no executable.
> 
> 
> 
> --
> 
> I have a theory that it's impossible to prove anything, but I can't 
prove
> 
> it.
> 
> 
> 
> Maranatha! <><
> 
> John McKown
> 
> 
> 
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Re: Interesting - NODE for z/OS

[John McKown]

On Wed, Feb 21, 2018 at 7:12 AM, Jerry Callen  wrote:

> You don't have to build from source; you can get a downloadable SDK:
>
> https://www.ibm.com/us-en/marketplace/sdk-nodejs-compiler-zos


​Thank you for that link. One difference that I can see is that the above
mentions a "Free 90 day trial"​ and I must sign in to ShopZ to get it.
Whereas the source pointed to in my original messages does not have any
mention of a "free trail" period or any requirement to use my IBM id to get
the software. Not that it matters to me personally, because it is unlikely
that the IBM offering will run on my company's ancient z9BC. I'm running
into that a lot any more. And management here basically refuses to get a
more current machine.



>
>
> There is a DeveloperWorks forum for node.js on IBM platforms (including
> z/OS and Linux on Z):
>
> https://www.ibm.com/developerworks/community/groups/service/
> html/communitystart?communityUuid=39f4d6be-d936-4a36-8fbf-874bf4bde113
>
> -- Jerry
>
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-- 
I have a theory that it's impossible to prove anything, but I can't prove
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Maranatha! <><
John McKown

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Re: Interesting - NODE for z/OS

[Barkow, Eileen]

CICS DOCTEMPLATES can include javascript code.
So NODE Is not the only thing that allows it.

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of John McKown
Sent: Wednesday, February 21, 2018 8:05 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Interesting - NODE for z/OS

I haven't really had a chance to look at this yet. But I thought others
here might be interested. It is NODE for z/OS. NODE is a "server side"
JavaScript engine. That is, it allows you to run JavaScript programs on
z/OS.

https://github.com/ibmruntimes/node/releases/tag/ibm-6.13.0.0

Source only, no executable.

--
I have a theory that it's impossible to prove anything, but I can't prove
it.

Maranatha! <><
John McKown

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Re: Interesting - NODE for z/OS

[Jerry Callen]

You don't have to build from source; you can get a downloadable SDK:

https://www.ibm.com/us-en/marketplace/sdk-nodejs-compiler-zos

There is a DeveloperWorks forum for node.js on IBM platforms (including z/OS 
and Linux on Z):
 
https://www.ibm.com/developerworks/community/groups/service/html/communitystart?communityUuid=39f4d6be-d936-4a36-8fbf-874bf4bde113

-- Jerry

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Interesting - NODE for z/OS

[John McKown]

I haven't really had a chance to look at this yet. But I thought others
here might be interested. It is NODE for z/OS. NODE is a "server side"
JavaScript engine. That is, it allows you to run JavaScript programs on
z/OS.

https://github.com/ibmruntimes/node/releases/tag/ibm-6.13.0.0

Source only, no executable.

-- 
I have a theory that it's impossible to prove anything, but I can't prove
it.

Maranatha! <><
John McKown

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