You-Dont-Know-JS

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Fix 'writable: false' to 'writable: true'

4

At line 97, this : **and it's not marked as read-only (`writable:false`)** should actually be this : **and it's not marked as read-only (`writable:true`)**

breda

Combine duplicate mentions of jsperf setup/teardown code

2

Lines 199 and 203 both describe `setup` and `teardown` code for jsperf tests. This is duplicate information, and one should be removed. In my opinion, it makes more sense to...

airandfingers

Fixed onlyOne() not working as intended

3

Fixed bug in function 'onlyOne', where onlyOne(2,0,0) would return false because it was adding the (non coerced) value of the argument to the sum. Also onlyOne(2,0,-1) would return true

tdamsma

"this & object prototypes": cover `__proto__` in object literals

4

ES6 now allows: ``` js var Foo = { .. }; var Bar = { __proto__: Foo, .. }; ``` This is obviously now much preferable in OLOO style, though...

getify

this & Object Prototypes - Chapter 3: Symbol.iterator enumerablility

3

In the end of the chapter there's an example and statement: ```js var myObject = { a: 2, b: 3 }; Object.defineProperty( myObject, Symbol.iterator, { enumerable: false, writable: false, configurable:...

Beaglefoot

Update various parts of the text. There's no such thing as "early ReferenceError" anymore (for things like `0++`); they're all just "early SyntaxError" now. https://github.com/tc39/ecma262/issues/691

getify

ES6 & Beyond: Early Completion

4

Hi! In the [Early Completion](https://github.com/getify/You-Dont-Know-JS/blob/master/es6%20%26%20beyond/ch3.md#early-completion) section there is a sentence: `In addition to return(..) being callable manually, it's also called automatically at the end of iteration by any of the...

okadurin

"async & performance": ch4, Delegating Recursion

4

I've been trying to wrap my brain around the recursive `yield`-delegation example in [ch4](https://github.com/getify/You-Dont-Know-JS/blob/master/async%20%26%20performance/ch4.md#delegating-recursion), but I can't quite seem to fully grok it, so I'm hoping you could clearify a...

stefanbruvik

ch6: Benchmarking | Use console.time()

1

https://github.com/getify/You-Dont-Know-JS/blob/master/async%20%26%20performance/ch6.md#benchmarking You could use the built-in `console.time()` and `console.timeEnd()` in this benchmarking example, as the `console` offers many more options than just `log()`. https://developer.mozilla.org/en-US/docs/Web/API/Console/time ``` console.time() // do some operation...

stefankp

Code example "isThisCool" in Ch3 "Types and Grammar", "Native Prototypes" throws error

1

Link: https://github.com/getify/You-Dont-Know-JS/blob/master/types%20%26%20grammar/ch3.md#native-prototypes The code example is as follows: ``` function isThisCool(vals, fn, rx) { vals = vals || Array.prototype; fn = fn || Function.prototype; rx = rx || RegExp.prototype; return...

komali2