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  JavaScript's Two Zeros

JavaScript has two zeros: -0 and +0. This post explains why that is and where it matters in practice. The signed zero Numbers always need to be encoded to be stored digitally. Why do some encodings have two zeros? As an example, let’s look at encoding integers as 4-digit binary numbers, via the sign-and-magnitude method. There, one uses one bit for the sign (0 if positive, 1 if negative) and the remaining bits for the magnitude (absolute value). Therefore, -2 and +2 are encoded as f...

   JavaScript,zeros     2012-03-24 05:21:49

  Top 10 WhatsApp Tips & Tricks To Try in 2017

v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false false EN-US X-NONE X-NONE

       2017-02-01 03:14:42

  10 New Year’s resolutions for designers

Get the new year off to a positive start with these design resolutions Wake up. I hope you enjoyed your holiday because it’s a new year and it’s time to get back to work. We did pretty good last year. We started standing up for ourselves. We stopped working for free. We started getting our financial house in order. (Please don’t make me do the contract thing again this year.) We rediscovered typography ...

   Designer,Chanllenge,2012,New UI     2012-01-18 09:11:02

  The Mature Programmer

1. The Mature Programmer The mature programmer manages their own time and productivity well. The MP knows that maintenance is as much work as the initial writing and code always takes longer than you think. The MP knows that any changes to code can introduce bugs, no matter how seemingly trivial. The MP knows that premature optimization is foolish and dangerous. The MP knows that sexy coding like writing big complex systems from scratch is rarely the best way to go. The MP does not get...

   Mature programmer,MP,Feature,Coding standard,Efficiency     2011-12-05 13:12:00

  Get vs Post in HTML form

In HTML, one can specify two different submission methods for a form. The method is specified inside a FORM element, using the METHOD attribute. The difference between METHOD="GET" (the default) and METHOD="POST" is primarily defined in terms of form data encoding. The official recommendations say that "GET" should be used if and only if the form processing is idempotent, which typically means a pure query form. Generally it is advisabl...

   Get,Post,HTML,form,data submission     2011-05-10 11:12:04

  Why PHP Was a Ghetto

Note: I wrote this over a month ago, but decided not to publish it until now.I was talking with the Co-founder of a pretty cool start-up in DUMBO the other day about why the non-PHP development world generally has such disdain for PHP and the community surrounding it. He brought up an interesting point that stuck with me, largely because I hadn’t heard it before.If you’re unaware of the usual beef most developers have with PHP, it tends to revolve around:Ug...

   PHP,Framework,MVC     2011-05-06 00:35:37

  Why so many Python web frameworks?

When asked about the plethora of web frameworks for Python the answer is often that it is way too easy to put together one in Python. That certainly seems plausible since there are so many libraries that implement the components of a web framework and if it's easy to plug those pieces together then maybe that lowers the bar of entry for new frameworks. So let's give it a shot, we'll pick some components and spend a couple hours seeing how far we can get building a web framework, which we...

   Python,Web framework,Dynamic scripting language,Web design     2012-02-13 05:32:48

  Cross Browser HTML5 Drag and Drop

HTML5 Drag and Drop has been talked about a lot lately, but it’s hard to find really useful information about implementing it across multiple browsers.Mozilla, Apple and Microsoft all have pages describing how to use it, but their examples seem to work only in their particular browser (Apple’s example doesn’t even work in their own! Updated, Jan. 11, 2009: Although I have not been able to get this example working on Safari 2.0.4 and 3....

   HTML5,Drag and drop, Demo,Source code,Cr     2011-09-20 13:42:45

  Tips, Tricks and Tools You Will Need to Start Using HTML5 Today

IntroductionHTML5 has been a really hot topic in web development. With the support of most modern browsers available (Safari, chrome, firefox, IE10 and mobile devices), even though the specification has not fully completed yet, but many people have already adopted it as the main technology for all the web development projects. Online giant websites such as Google, facebook, twitter and youtube, they are all built in HTML5!For me, the most exciting features of HTML5 are the canvas and the robust ...

   HTML5,Web development,Tools,Tricks,Tips     2011-10-10 05:28:53

  Don't write on the whiteboard

I recently interviewed at a major technology company. I won't mention the name because, honestly, I can't remember whether I signed an NDA, much less how strong it was.I did well. Mostly because of luck. I normally step over myself when I interview. I guess I've improved over the years. Here are a few tips to ace your own interview.1. Don't write on the whiteboardWhen I interviewed at Palantir around 5 years ago, I had a lot of trouble with this. Yes, I knew next to nothing about compu...

   Interview,Preparation,Whiteboard,Note,Python     2012-01-11 11:31:32