Eventbrite, and certain approved third parties, use functional, analytical and tracking cookies (or similar technologies) to understand your event preferences and provide you with a customised experience. By closing this banner or by continuing to use Eventbrite, you agree. For more information please review our cookie policy.
Invalid quantity. Please enter a quantity of 1 or more.
The quantity you chose exceeds the quantity available.
Please enter your name.
Please enter an email address.
Please enter a valid email address.
Please enter your message or comments.
Please enter the code as shown on the image.
Please select the date you would like to attend.
Please enter an email address.
Please enter a valid email address in the To: field.
Please enter a subject for your message.
Please enter a message.
You can only send this invitations to 10 email addresses at a time.
$$$$ is not a properly formatted colour. Please use the format #RRGGBB for all colours.
Please limit your message to $$$$ characters. There are currently ££££.
$$$$ is not a valid email address.
Please enter a promotional code.
N/A
Sold Out
Unavailable
Please enter a password with at least 8 characters.
You have exceeded the time limit and your reservation has been released.
The purpose of this time limit is to ensure that registration is available to as many people as possible. We apologise for the inconvenience.
This option is not available anymore. Please choose a different option.
Please read and accept the waiver.
All fields marked with * are required.
Please double check your email address. The email address format does not appear valid.
Please double-check your email address. Your emails do not match.
$$$$ requires a number between ££££ and §§§§
US Zipcodes need to be 5 digits.
Postal code may contain no more than 9 letter or number characters.
Please double check your website URL.
All fields marked with * are required.
Your card expiration date is in the past.
Your card CSC needs to be 4 digits.
Please confirm your order: $$$$ You have selected to Pay by Cheque.
Click OK to confirm your order.
Please confirm your order: $$$$ You have selected to Pay at the Door.
Click OK to confirm your order.
Please confirm your order: $$$$ You have selected to Pay upon Receiving an Invoice.
Click OK to confirm your order.
Your card CSC needs to be 3 digits.
Sofort is only available in Germany and Austria.
Boleto Bancario is only available in Brazil.
OXXO is only available in Mexico.
PagoFacil is only available in Argentina.
Rapipago is only available in Argentina.
Please enter a valid IBAN number.
You need to accept to charge your bank account.
Your billing zip code needs to be 5 digits.
Please double check your CEP info. The CEP format should be something like 12345-678.
Please double check your tax identifier.
There was a problem saving your address.
There was a problem saving your card info.
There was a problem saving your personal information.
Please select the date you would like to attend.
McAfee Secure sites help keep you safe from identity theft, card fraud, spyware, spam, viruses and online scams.
Copying Prohibited by Law - McAfee Secure is a Trademark of McAfee, Inc.
Unknown card type.
No card number provided.
card number is in invalid format.
Wrong card type or card number is invalid.
card number has an inappropriate number of digits.
Please enter numbers here.
Please enter an integer value.
Numbers must be less or equal to $$$$
All the required fields have not been filled out. Click OK to proceed without all the required information, or click Cancel to finish entering the missing data.
Job titles must be less than 50 characters.
There is currently an issue with card submission on Safari with iOS7. Please try again with a different browser or device.
Sorry, invalid event registration form.
Sorry, invalid event or database error.
Sorry, quantity must be a positive integer.
Sorry, you did not select a valid ticket.
Sorry, invalid event organiser email address.
Your order was cancelled.
Thank You. Your order has been successfully completed. Your name and email address have been added to the list of event attendees.
Sorry, that option is sold out.
Sorry, that option is no longer available.
Sorry, you entered an invalid quantity. Please enter a quantity of 1 or more next to the type or types of tickets you would like to purchase.
Sorry, you did not select any tickets to purchase. Please enter a quantity of 1 or more next to the type or types of tickets you would like to purchase.
Sorry, there are no tickets left for this event.
The tickets, ticket quantity or date and time you've requested are no longer available, due to previous sales. Please choose a different date, time or number of tickets and place your order again.
Sorry, one or more of the tickets you requested are no longer available for purchase.
Sorry, you need to select the date you want to attend.
Sorry, the promotional code you entered is not valid yet.
Sorry, the promotional code you entered has expired.
Sorry, the promotional code you entered is not valid.
Your session has expired. Try ordering again.
Sorry, your requested ticket quantity exceeds the number provided by your promotional code.
Join Joe Albahari, author of LINQPad and C# 5.0 in a Nutshell, for a YOW! Night hour of functional fundamentalism. Everything will be explained simply and in the familiar language of C#, without mathematics, LISP or Haskell!
Program
5:30pm
Welcome networking with refreshments
6:00pm
Presentation "Programming with Purity" followed by Q&A
7:30pm
Networking refreshments and close
About The Presentation - Programming with Purity
We take for granted that the goto statement is bad. Instead, we employ alternatives that make our code easier to understand and reason over, namely structured looping constructs such as while-loops and for-loops.
But have you ever considered that functional programmers look down on our looping constructs (or more specifically, our impure use of variables) in the same way we look down on goto? And they've got a point. By avoiding some of our most time-honoured tricks, we can end up with code that's not only easier to understand and reason over, but that scales better.
About The Presenter
Joe Albahari is the inventor of LINQPad and the author of the bestselling book on C# 5.
He's written extensively on multithreading and parallel programming, and speaks regularly at user groups and conferences such as YOW! and TechEd.
Sponsors
Thank you to Optiver for providing the venue and our community sponsor ThoughtWorks. This event is co-hosted with the Sydney ALT.NET user group.
Joe Albahari is the inventor of LINQPad and the author of the bestselling book on C# 5. 
Share .NET YOW! Night Sydney - Joe Albahari - Oct 2
Share Tweet