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How does Bluebird's util.toFastProperties function make an object's properties “fast”?
...what it does and why that's faster and then why it works.
What it does
The V8 engine uses two object representations:
Dictionary mode - in which object are stored as key - value maps as a hash map.
Fast mode - in which objects are stored like structs, in which there is no computation involved in pr...
How to call a JavaScript function from PHP?
...eature for this. Check here
Code sample (taken from the web):
<?php
$v8 = new V8Js();
/* basic.js */
$JS = <<< EOT
len = print('Hello' + ' ' + 'World!' + "\\n");
len;
EOT;
try {
var_dump($v8->executeString($JS, 'basic.js'));
} catch (V8JsException $e) {
var_dump($e);
}
?>...
Nodejs Event Loop
...
I have been personally reading the source code of node.js & v8.
I went into a similar problem like you when I tried to understand node.js architecture in order to write native modules.
What I am posting here is my understanding of node.js and this might be a bit off track as well.
...
Javascript Array.sort implementation?
... As many have mentioned here, Mozilla uses merge sort.However, In Chrome's v8 source code, as of today, it uses QuickSort and InsertionSort, for smaller arrays.
V8 Engine Source
From Lines 807 - 891
var QuickSort = function QuickSort(a, from, to) {
var third_index = 0;
while (true) {
...
分布式系统的事务处理 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...个Master都提供read-write服务。这个模型是Master-Slave的加强版，数据间同步一般是通过Master间的异步完成，所以是最终一致性。 Master-Master的好处是，一台Master挂了，别的Master可以正常做读写服务，他和Master-Slave一样，当数据没有被...
Is the order of elements in a JSON list preserved?
...
Some JavaScript engines keep keys in insertion order. V8, for instance, keeps all keys in insertion order except for keys that can be parsed as unsigned 32-bit integers.
This means that if you run either of the following:
var animals = {};
animals['dog'] = true;
animals['bear'...
What do the return values of node.js process.memoryUsage() stand for?
...
In order to answer this question, one has to understand V8’s Memory Scheme first.
A running program is always represented through some space allocated in memory. This space is called Resident Set. V8 uses a scheme similar to the Java Virtual Machine and divides the memory into ...
What does `node --harmony` do?
...
@jsalonen there isn't one, but you can do > node --v8-options to get the stuff referred here
– eis
Nov 12 '12 at 22:27
...
How to install therubyracer gem on 10.10 Yosemite?
...
git clone https://github.com/cowboyd/libv8.git
cd libv8
bundle install
bundle exec rake clean build binary
gem install pkg/libv8-3.16.14.3-x86_64-darwin-12.gem #note that libv8 version may change, so tab through files in pkg/, also remember to use the one with vers...
Node.js version on the command line? (not the REPL)
...
node -v => v8.11.2 => So this works also for v8.11.2
– Valentin Grégoire
Aug 29 '18 at 12:42
...