This blog post explains how JavaScript dates are stored internally as time values, milliseconds since 1970-01-01.

According to the ECMAScript specification, all numbers in JavaScript are floating-point. Yet, the notion of integer comes up occasionally. This blog post explains what it means.

On 2012-05-31, I held the talk “Fake operator overloading” at Fluent Conference, in San Francisco. The video is now publicly available (go there for a larger version of the video).

Recently, Michael Ficarra pointed me to an efficient algorithm for repeating a string several times. In this blog post, I explain how it works.

This blog post describes JavaScript’s binary bitwise operators: bitwise And (&), bitwise Or (|), and bitwise Xor (^).

Code snippet – this is roughly how you would implement the new operator in JavaScript:

TC39 [1] is the committe that currently plans ECMAScript 6 (code-named ECMAScript.next), the next version of the JavaScript language standard. In this blog post, I’m summarizing the highlights of several meetings that they had in 2013, in March, May, July, September and November. Previous blog posts summarized prior meetings.

This post is made possible by Rick Waldron’s excellent notes of the meetings.

New version of this blog post: inside “ECMAScript 6: new OOP features besides classes”.

Copying all properties of one object to another one is a common operation in JavaScript. This blog post explains ECMAScript 6’s implementation of it, which is called Object.assign().

This blog post examines how one can dynamically evaluate code in JavaScript.

This blog post describes five technologies that will make 2014 an exciting year for the web platform:

1. asm.js: near-native performance on the web
2. ParallelJS: parallelized JavaScript code
3. ECMAScript 6 (ES6): evolving the language, uniting the community
4. Web Components: a standard infrastructure for widgets
5. CSS Grid Layout: native-like GUI layout