UPDATE: Recently a brilliant article from Mozilla came up. Read it if you're curious.   As you may know they are planning to include new Symbol primitive type in ECMAScript 6 (not to mention some other crazy stuff). I always thought that the...

What is the point of the 'Symbol' type in ECMA-262-v6? Fast path implementation for object keys? What does it do under the hood - hash it with the guarantee that the underlying data is immutable?...

I've been around the block when it comes to languages, having worked with everything from C# to Lisp to Scala to Haskell, and in every language that supported them, symbols have acted pretty much the same; that is, any two symbols with the same n...

I wonder if there is a nice way to get the descriptions of a Symbol.  For example,  var s = Symbol(5);   The default implementation of the toString will simply print      Symbol(5)  I would like to find a way to extract the actual description i.e. 5...

Where can I find the list of symbols made available to us by d3.js  which is referred by this line of code:   d3.svg.symbol().type(/*Name of the symbol type that is available to us to use*/'triangle')   Some of the available symbols include t...

I am reading You Don't Know JS: ES6 & Beyond and I encountered this snippet in Symbol.species section.    class Cool {     // defer `@@species` to derived constructor     static get [Symbol.species]() { return this; }      again() {         r...

I am trying to remove special characters from a piece of text, but using the following regular expression  var desired = stringToReplace.replace(/[^\w\s]/gi, '')   (found here: javascript regexp remove all special characters)  has the negativ...

If I created an array, for instance, var array=[1,2,3,4]; to return an iterator I would do var iterator=array[Symbol.iterator](); I dont understand why you access the Symbol.iterator property through brackets? Why isnt it just array.Symbol.iterator?...

How can Node's emitter.removeListener be implemented in ES2015? Adding a callback to an array is easy:  let callbacks = []; function registerCallback(handler) {     callbacks.push(handler); });   How can that particular function be removed later,...

I'm trying to create D3 SVG Symbols, with the symbol shape set dynamically based on a category property in the data. This will be part of a custom visual in PowerBI, so I'm using Typings library.  From the examples I've seen online, the b...