dmslabsbr

// Automatic FlutterFlow imports
import '/backend/backend.dart';
import '/backend/schema/structs/index.dart';
import '/flutter_flow/flutter_flow_theme.dart';
import '/flutter_flow/flutter_flow_util.dart';
import '/custom_code/actions/index.dart'; // Imports other custom actions
import '/flutter_flow/custom_functions.dart'; // Imports custom functions
import 'package:flutter/material.dart';
// Begin custom action code
// DO NOT REMOVE OR MODIFY THE CODE ABOVE!

caitp

Walkthrough of the following script (v8:6573).

var logFoo;
var promise1 = Promise.resolve().then( () => logFoo = () => console.log( "foo" ) );
promise1.then( () => logFoo() ).then( logFoo );

1. var logFoo;

DmitrySoshnikov

/**
 * Simple and educational `malloc` implementation.
 *
 * Dmitry Soshnikov <[email protected]>
 *
 * Maintains explicit linked list of allocated memory blocks. Each block
 * has a header, containing meta-information, such as whether a block is
 * free, its size, and a reference to the next block.
 *
 * Homework assignments:

rbuckton

Overview

Cancellation follows a source -> sink model and consists of three components: Source, Sink, and Signal.

• Source - Created by the caller of an asynchronous operation, a Source is a Signal producer.
  • Represented in this proposal as CancellationSource.
• Sink - Provided by the caller to an asynchronous operation, a Sink is a Signal consumer.
  • A Source and its Sink are entangled.
  • A Sink can only be used to consume or observe a cancellation Signal.
• Represented in this proposal as a CancellationToken.

kanaka

(module
  (func $addTwo (param i32 i32) (result i32)
    (i32.add
      (get_local 0)
      (get_local 1)))
  (export "addTwo" (func $addTwo)))

dead-claudia

Parallel JS Strawman

Yes, this is a very significant departure from web workers, the current browser concurrency model. But I feel the lower level, more tightly integrated nature of it will make it far faster and lighter in practice, while still avoiding some significant footguns and working with the traditional single-threaded nature of JavaScript. Additionally, raw objects are much easier to deal with than pure message passing with workers.

Creating new threads

So here's my idea:

// parent.js

annesteenbeek

#!/usr/bin/env python

import rospy
import mavros
from geometry_msgs.msg import PoseStamped
from mavros.msg import State 
from mavros.srv import CommandBool, SetMode

# callback method for state sub
current_state = State() 

oriSomething

import React, { Component } from 'react';
import storeDecorator from './store-decorator';
import someStore, { SOME_STORE_SYMBOL } from './some-reflux-store';

@storeDecorator(someStore) 
class SomeComponent extends Component {
  render() {
    return (
      <div>
        {this.state[SOME_STORE_SYMBOL].someProperty}

addyosmani

Re: http://blog.chromium.org/2015/03/new-javascript-techniques-for-rapid.html

V8 Optimisations to enable fast page startup

As mentioned in our Chromium blog post, Chrome 41 introduces support for streaming parsing of JavaScript files using the async or defer attributes. This is where the V8 parser will parse any incoming JavaScript piece-by-piece so the compiler can immediately begin compiling the AST when script loading has completed. This lets us do something useful while waiting for the page to load. Compare:

This means parsing can be removed from the critical path when loading up the page. In these cases such scripts are parsed on a separate thread as soon as the download begins, allowing parsing to complete very soon after the download has completed (milliseconds), leading to pages (potentially) loading much faster.

danharper

const CANCEL = Symbol();

class CancellationToken {

  constructor() {
    this.cancelled = false;
  }

  throwIfCancelled() {
    if (this.isCancelled()) {