DavidQL

#include <iostream>
 
using namespace std;
 
int main()
{
  int one = 1;
  int two = 2;
  cout << one + two << "\n";
  return 0;

DavidQL

#include <iostream>
 
using namespace std;
 
int main()
{
  int one = 1;
	int two = 2;
  cout << one + two << "\n";
	return 0;

DavidQL

console.time('fast array');

var myClass = function() {
  this.array_one = [1,2,3,4,5];
  this.array_two = [1,2,3,4,5];
  this.total = 0;
}

var my_instance = new myClass();

DavidQL

console.time('slow array');

var myClass = function() {
  this.array_one = [1,2,3,4,5];
  this.array_two = [1,2,3,4,5];
  this.total = 0;
}

var my_instance = new myClass();

DavidQL

console.time('local');

var myObject = {
  key1: {
    key2: {
      key3: 1
    }
  }
}

DavidQL

console.time('non-local');

var myObject = {
  key1: {
    key2: {
      key3: 1
    }
  }
}

DavidQL

var formData = new FormData(),
    $input = $('#avatar');
    
formData.append('user[avatar]', $input[0].files[0]);

$.ajax({
  url: this.model.url(),
  data: formData,
  cache: false,
  contentType: false,

DavidQL

def update
  @user = current_user
  if @user.update_attributes(params[:user])
    render :json => @user
  else
    render :json => @user.errors
  end
end

DavidQL

class User
  def eager_load_foo
    if Rails.cache.fetch(self.foo_cache_key).nil? # a cache of the current iterator doesn't exist, so create it
      Rails.cache.write(self.foo_cache_key, Foo.to_json)
    end
  end
end

DavidQL

class FooController
  caches_action :foo, :cache_path => Proc.new { |c| current_user.foo_cache_key }
end