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wmname LG3D

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JS Talk for HackSoc

1995 LiveScript released for NetScape Navigator. It was a language designed to by easy for non-programmers and to add cool dynamic functionality to websites. It ran in the web browser. These days all web browsers have JavaScript engines built in because it is the de facto scripting language of the web. Its name was quickly changed to JavaScript as a marketing ploy because Java was a very hot language at the time. But it has nothing to do with Java. The only thing it has in common is syntax because both languages have syntax based on C.

1996 JavaScript standardized by ECMA. The standard is called ECMAScript

JavaScript used to be famous for being really slow, but because of how important it is to dynamic web pages, companies like Google and Mozilla have sunk a tonne of money into making it faster. These days it's pretty fast and isn't only used in web browsers (see Node.js).

Language Basics for Beginners

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var mongoose = require('mongoose')
    , Podcast = mongoose.model('Podcast');

Podcast.find({}).remove(function() {
    Podcast.create({ 
	    title: 'Joe Rogan',
        score: 4783,
        tags: ['tag1', 'tag2', 'tag3'],
        dateSubmitted: new Date
    }, {

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void foo(int a) { // 1 is copied to another space in memory when foo() is called
    // do something
}

int main() {
    int a = 1; // 1 is now in memory
    foo(a); 
}

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jQuery.getScript('http://www.cornify.com/js/cornify.js',function(){ for (var i = 0; i < 25; i++) cornify_add() });

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shh such algorithm
 
so commander as cat
 
		plz cat.option with '-n, --number <n>' 'many number' parseInt
 
plz cat.parse with process.argv
 
			such doge much nice 
	rly nice<1

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var express = require('express'),
app = module.exports = express.createServer(),
routes = require('./routes'),
mongoose = require('mongoose');
//MongoStore = require('connect-mongo')(express);

mongoose.connect('mongodb://localhost/randomstuffwhey');

var app = module.exports = express.createServer();

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// This is why everyone needs jQuery in their lives...
$('img').each(function(){$(this).attr('src','http://www.placekitten.com/'+(Math.floor(Math.random()*100)+150)+'/'+(Math.floor(Math.random()*100)+150))});

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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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Resources

About hackathons

Hackathons (or hack days) are super awesome events where people meet to build cool things. They're usually 24 hours straight programming/tinkering/building. Everybody gets involved, helps make something, then shows it to everybody else. Don't worry if you haven't been to one before, come along and you'll learn tons and have some great fun. Hackathons are pretty lighthearted and everyone's very helpful. Check out some past hackathons HackSoc have been to here: http://hacksocnotts.co.uk/category/news/

Preparing for a hackathon