Coursera: Startup Engineering

HM1-prime.js

#!/usr/bin/env node

var checkprime = function(smallerPrimes, number) {
    isprime = 1;
    for (var i = 0; i < smallerPrimes.length; i++) {
        if (number % smallerPrimes[i] == 0) {
            isprime = 0;
            break;
        }
    }
    
    return isprime;
}

var firstkprime = function(k) {
    var i = 1;
    var arr = [2];
    for (i = 1; i < k; i++) {
        var numbertocheck = arr[arr.length - 1];
        var foundprime = 0;
        while (foundprime == 0) {
            numbertocheck += 1;

            if (checkprime(arr, numbertocheck)) {
                arr.push(numbertocheck);
                foundprime = 1;
            }
        }
    }
    
    return arr;
};

var fmt = function(arr) {
    return arr.join(",");
};

var k = 100;
var fs = require('fs');
var outfile = "prime.txt";
var out = fmt(firstkprime(k)) + "\n";
fs.writeFileSync(outfile, out);  
console.log("Script: " + __filename + "\nWrote: " + out + "To: " + outfile);

StartupEngineering.md

##Sign up June 25, 2013

##HW1 Quiz: Github, Heroku, and AWS Date: June 25, 2013

1. Sign up Github

   https://gist.github.com/pala

2. Deploy a heroku app

   http://secure-harbor-3442.herokuapp.com/

3. Setup an ec2 instance

   done

##Lecture 3: Linux and Server-Side Javascript ###The Cloud

1. Infrastructure as a service (IaaS): AWS, Linode, Rackspace …
2. Platform as a service (PaaS): Heroku, GAE ...
3. Software as a service (SaaS): Google Apps ...