How it feels to learn Javascript in 2016

philipmjohnson · October 5, 2016, 4:27am

Or, you could use Meteor, Blaze, an Atmosphere package for REST, and be done in, what? 100 lines of code? 50?

cstrat · October 5, 2016, 5:09am

lol thats great. had to share on twitter.

M4v3R · October 5, 2016, 6:58am

Blaze is soooo 2014. /s

M4v3R · October 5, 2016, 4:40pm

Case in point, because I was bored:

Fetches some latest photos from Flickr XML API and displays them in a real-time updated table. Done with less than 50 lines of JS code in 30 minutes from start to finish.

Of course it’s a crude example and if that was a real-world component I probably would write it differently, but it really shows how Meteor can get things done quickly and easily.

cstrat · October 5, 2016, 10:32pm

Just a question because I don’t understand this properly myself…

github.com

M4v3R/meteor-rest-example/blob/master/server/main.js#L21-L31


Meteor.startup(() => {
SyncedCron.add({
  name: "Fetch data",
  schedule: function(parser) {
    return parser.text("every 5 seconds");
  },
  job: fetchData
});


SyncedCron.start();
});

Why did you wrap this in Meteor.startup?
I’ve never done this myself and don’t understand why people do it.
As I understand it, main.js will only run once, on startup anyway?

M4v3R · October 5, 2016, 11:06pm

Not sure if it’s needed here, but as I understand wrapping your initialization code in Meteor.startup() makes sure that it gets executed only after everything else got loaded (all the JS files etc.).

cstrat · October 5, 2016, 11:44pm

Ah so it basically puts that block of code on hold until the rest of the server code has completed execution.

I guess that it would be useful if you don’t have control of the loading order, or if you have a complex load order and just want something to run at the very end.

Cheers