Douglas Crockford: Principles of Security. Pjax. Bush.doc. Vannevar Bush As We May Think From The Atlantic Monthly, July 1945: 101-108.
Reprinted with permission. (c)1945, V. Bush. As Director of the Office of Scientific Research and Development, Dr. This has not been a scientist's war; it has been a war in which all have had a part. For the biologists, and particularly for the medical scientists, there can be little indecision, for their war work has hardly required them to leave the old paths. It is the physicists who have been thrown most violently off stride, who have left academic pursuits for the making of strange destructive gadgets, who have had to devise new methods for their unanticipated assignments.
Of what lasting benefit has been man's use of science and of the new instruments which his research brought into existence? There is a growing mountain of research. Professionally our methods of transmitting and reviewing the results of research are generations old and by now are totally inadequate for their purpose. First steps in data visualisation using d3.js. Linear Algebra: Vector Examples. Romain.vuillemot.net/publis/rvuillemot-phd.pdf.
The Node Beginner Book » A comprehensive Node.js tutorial. 2011-D3-InfoVis. Writing efficient CSS selectors. 17 September, 2011 Efficient CSS is not a new topic, nor one that I really need to cover, but it’s something I’m really interested in and have been keeping an eye on more and more since working at Sky.
A lot of people forget, or simply don’t realise, that CSS can be both performant and non-performant. This can be easily forgiven however when you realise just how little you can, err, realise, non-performant CSS. These rules only really apply to high performance websites where speed is a feature, and 1000s of DOM elements can appear on any given page. But best practice is best practice, and it doesn’t matter whether you’re building the next Facebook, or a site for the local decorator, it’s always good to know… CSS selectors CSS selectors will not be new to most of us, the more basic selectors are type (e.g. div), ID (e.g. More uncommon ones include basic pseudo-classes (e.g. ID, e.g. Quoted from Even Faster Websites by Steve Souders N.B. Combining selectors Now, we read these left-to-right.
But. Faster JavaScript Memoization For Improved Application Performance. Whilst not new by any means, memoization is a useful optimization technique for caching the results of function calls such that lengthy lookups or expensive recursive computations can be minimized where possible.
The basic idea is that if you can detect an operation has already been previously completed for a specific set of input values, the stored result can instead be returned instead of repeating the operation again. Some of the problems memoization can help optimize include: recursive mathematics, algorithmic caching of canvas animation and more generally, any problems which can be expressed as a set of calls to the same function with a combination of argument values that repeat. A Brief History If you're a history buff, you may be interested to know that the term 'memoization' was first coined in 1968 by a scientist involved in researching artificial intelligence named Donald Michie – it's based on the latin for the word memorable (memorandum).
Implementing Memoization – The Basics.