v413

7 ms·

1.
by v413 3y ago
This is the second "law" of the dialectical materialism by Engels: "The law of the passage of quantitative changes into qualitative changes" According to Wikipedia it has its roots from ancient Greece https://
2.
by v413 4y ago
Yep, looks like they are the same.
3.
by v413 4y ago
Well here it stops lol https://www.youtube.com/watch?v=Fu4ZEnIwYZI
4.
by v413 4y ago
Bun is using the JavaScriptCore engine which is the Webkit/Safari Javascript engine. It is not written in Zig.
5.
by v413 5y ago
This is not efficient. Each iteration creates a new array instance due to the spread operator.
6.
by v413 5y ago
React is slow for the perf targets of VSCode.
7.
by v413 5y ago
The # symbol denoting private fields has already been finalized and approved to be a legal part of the language. No going back.
8.
by v413 5y ago
Object properties defined as Symbols (even through classes) are still accessible by e.g. Object.getOwnPropertyDescriptors(myObject) Before the private fields, it was possible to create private properties through a WeakMap object which is s
9.
by v413 8y ago
It is already implemented in the current Firefox, Chrome and Safari 12.
10.
by v413 9y ago
Some TC39 members proposed this. It is in no way even discussed or decided by the TC39 committee yet. The fancy naming is proposed by some as a solution to prevent name collisions with the flatMap and flatten array methods used by an old ve
11.
by v413 9y ago
The premise of the article that the more objects that mutate state locally are used the more complex and more difficult it is to reason about the system becomes is not true. The core principle of data encapsulation in OOP ensures your syste
12.
by v413 9y ago
As an event listener "function(e) {this}" is not the same as "(e) => this". With the regular function "this" points to the element on which the event listener was attached to while with the arrow function &q
13.
by v413 9y ago
why not just use acc[prop] = value ?
14.
by v413 10y ago
There are global symbols. You use Symbol.for() to either create or retrieve them. E.g. Symbol.for('hello') is available globally through the global registry. It should be noted that an already existing symbol e.g. Symbol('hel
15.
by v413 10y ago
Typescript is designed to be compiled to JS. WASM is designed for staticly compiled languages. Even if there is GC and DOM access through WASM, Typescript will be better off to run for the natively JIT optimized JS path.
16.
by v413 10y ago
JS will not compile to WASM.
17.
by v413 10y ago
Or maybe even include the wasm codec/player along with the video. Then it doesn't matter what the platform supports as long as it can run wasm.
18.
by v413 10y ago
Prior to ES5 undefined was overwritable that is why void 0 guaranteed to produce undefined. With ES5 and later using undefined directly is safe.
19.
by v413 11y ago
Feature detection is not always enough. E.g. if a browser reports it has a required feature but that feature is buggy rendering it effectively unusable, then browser detection is necessary.
20.
by v413 11y ago
It is not precisely clear decorators will make it into ES2016 yet (maybe ES2017?). That is why it is better to say ES Next or something like that.
21.
by v413 11y ago
With the introduction of arrow function you won't need to use .bind(this) as arrow functions capture in their lexical scope the variables/keywords: this, arguments, super. e.g. setTimeout(function(){alert(this.a)}.bind(this)); bec
22.
by v413 11y ago
All code in modules is in the context of "use strict" by default so it won't be necessary to use this pragma explicitly.
23.
by v413 12y ago
Chrome 39 on Windows 7, when scrolling the text gets blurry. On Chrome 41 Canary though things work well and fast.
24.
by v413 12y ago
Looking at the compiled source, it looks like ES5 and not ES3. They use "use strict" and Object.defineProperties which are ES5 features. P.S. IE9 doesn't support ES5 strict mode so "use strict" might introduce some
25.
by v413 12y ago
JS SIMD will support the ARM Neon instructions. Here is the spec http://esdiscuss.org/notes/2014-07/simd-128-tc39.pdf
26.
by v413 12y ago
How about converting this viewer through Emscripten using asm.js. Would be interesting to see performance comparison with pdf.js :)
27.
by v413 12y ago
You need: ['10', '10', '10'].map(Number);
28.
by v413 13y ago
Well, PS4 has 3.5GB allocated for system memory. Plenty for running lots of things in the background.
29.
by v413 13y ago
Node.js is the keyword here, not the web.
30.
by v413 13y ago
The "this" value in functions is not lexically scoped. It is determined during function invocation, not during function declaration.

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