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REGEX et PREG - assertions avant-arrière (lookahead & lookbehind assertions) : récupérer les chaînes qui ne contiennent pas un mot particulier REGEX et PREG - assertions avant-arrière (lookahead & lookbehind assertions) : récupérer les chaînes qui ne contiennent pas un mot particulier Par Albin - le 09/05/2010 à 16:28 Comment écrire une expression régulière qui n'accepte que les chaînes de caractères qui ne contiennent pas tel mot ou telle expression. Une réponse avec les assertions avant-arrière (lookahead & lookbehind assertions)
styleguide - Style guides for Google-originated open-source projects styleguide - Style guides for Google-originated open-source projects Every major open-source project has its own style guide: a set of conventions (sometimes arbitrary) about how to write code for that project. It is much easier to understand a large codebase when all the code in it is in a consistent style. “Style” covers a lot of ground, from “use camelCase for variable names” to “never use global variables” to “never use exceptions.” This project holds the style guidelines we use for Google code. If you are modifying a project that originated at Google, you may be pointed to this page to see the style guides that apply to that project. Our C++ Style Guide, Objective-C Style Guide, Java Style Guide, Python Style Guide, Shell Style Guide, HTML/CSS Style Guide, JavaScript Style Guide, AngularJS Style Guide, and Common Lisp Style Guide are now available.
Styleguide Page suivante Page précédente Table des matières La cathédrale et le bazar ( The Cathedral and the Bazaar) Auteur : Eric S.

The Internet map

The Internet map The map of the Internet Like any other map, The Internet map is a scheme displaying objects’ relative position; but unlike real maps (e.g. the map of the Earth) or virtual maps (e.g. the map of Mordor), the objects shown on it are not aligned on a surface. Mathematically speaking, The Internet map is a bi-dimensional presentation of links between websites on the Internet. Every site is a circle on the map, and its size is determined by website traffic, the larger the amount of traffic, the bigger the circle. Users’ switching between websites forms links, and the stronger the link, the closer the websites tend to arrange themselves to each other. Charges and springs
What is Project Euler? Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems. The motivation for starting Project Euler, and its continuation, is to provide a platform for the inquiring mind to delve into unfamiliar areas and learn new concepts in a fun and recreational context. Who are the problems aimed at? The intended audience include students for whom the basic curriculum is not feeding their hunger to learn, adults whose background was not primarily mathematics but had an interest in things mathematical, and professionals who want to keep their problem solving and mathematics on the edge. Project Euler

Project Euler

Expérience de Milgram Un article de Wikipédia, l'encyclopédie libre. Reconstitution de l'expérience de Milgram (extrait)[1] L’expérimentateur (E) amène le sujet (S) à infliger des chocs électriques à un autre participant, l’apprenant (A), qui est en fait un acteur. La majorité des participants continuent à infliger les chocs jusqu'au maximum prévu (450 V) en dépit des plaintes de l'acteur. L'expérience de Milgram est une expérience de psychologie réalisée entre 1960 et 1963 par le psychologue américain Stanley Milgram. Expérience de Milgram
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Things You Should Never Do, Part I Things You Should Never Do, Part I by Joel Spolsky Thursday, April 06, 2000 Netscape 6.0 is finally going into its first public beta.
Mozilla may make Flash click-to-play by default in future Firefox Firefox developers are considering making Web plugins like Adobe Flash an opt-in feature. Although there is still a long way to go before it’s ready for Firefox proper, switching to an opt-in, "click-to-play" approach for plugins could help make Firefox faster, more secure, and a bit easier on the laptop battery. A very early version of the "click-to-play" option for plugins is now available in the Firefox nightly channel. Mozilla may make Flash click-to-play by default in future Firefox
Pluto Scarab — Hash Functions
SMAC - Publications
Anatomy of Facebook Anatomy of Facebook Think back to the last time you were in a crowded airport or bus terminal far from home. Did you consider that the person sitting next to you probably knew a friend of a friend of a friend of yours? In the 1960s, social psychologist Stanley Milgram’s “small world experiment” famously tested the idea that any two people in the world are separated by only a small number of intermediate connections, arguably the first experimental study to reveal the surprising structure of social networks. With the rise of modern computing, social networks are now being mapped in digital form, giving researchers the ability to study them on a much grander, even global, scale. Continuing this tradition of social network research, Facebook, in collaboration with researchers at the Università degli Studi di Milano, is today releasing two studies of the Facebook social graph.
Don't give away your product for free... …unless you plan to keep it free forever. The Cost of Free Doughnuts, a story on NPR shows what happens when you make something paid that was once free. During WWII, the Red Cross, which used to give away free coffee and doughnuts started charging servicemen for doughnuts at the behest of the US Government. Veterans still remember this 70 years later! Don't give away your product for free...
Imagine you were a Jedi master called Bob (your parents, whilst skilled in the ways of the force weren’t the best at choosing names). The love of your life - Princess Lucia – is trapped in a burning building as you hurry to save her. You might think of Lucia as the embodiment of your dreams, your aspirations – she is your most important thing. (28) How to master your time - Leading a better life - Quora
Editor’s note: Legendary investor Vinod Khosla is the founder of Khosla Ventures. You can follow him on Twitter at @vkhosla. All Khosla Ventures investments, as well as ventures related to Vinod Khosla, are italicized.

The “Unhyped” New Areas in Internet and Mobile

open source

Metcalfe's law Two telephones can make only one connection, five can make 10 connections, and twelve can make 66 connections. Metcalfe's law states that the value of a telecommunications network is proportional to the square of the number of connected users of the system (n2). First formulated in this form by George Gilder in 1993,[1] and attributed to Robert Metcalfe in regard to Ethernet, Metcalfe's law was originally presented, circa 1980, not in terms of users, but rather of "compatible communicating devices" (for example, fax machines, telephones, etc.)[2] Only more recently with the launch of the Internet did this law carry over to users and networks as its original intent was to describe Ethernet purchases and connections.[3] The law is also very much related to economics and business management, especially with competitive companies looking to merge with one another. Network effects[edit]

Why programmers work at night

[This essay has been expanded into a book, you should read it, here] Image via Wikipedia A popular saying goes that Programmers are machines that turn caffeine into code. And sure enough, ask a random programmer when they do their best work and there’s a high chance they will admit to a lot of late nights. Some earlier, some later. A popular trend is to get up at 4am and get some work done before the day’s craziness begins.