sochix

const app = require('express')()

const getDurationInMilliseconds  = (start) => {
    const NS_PER_SEC = 1e9
    const NS_TO_MS = 1e6
    const diff = process.hrtime(start)

    return (diff[0] * NS_PER_SEC + diff[1]) / NS_TO_MS
}

lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

getify

Parens And Performance

Years ago, some smart folks that worked on JS engines realized that not all JS that's loaded into a page/app initially is needed right away. They implemented JIT to optimize this situation.

JIT means Just-In-Time, which means essentially that the engine can defer processing (parsing, compiling) certain parts of a JS program until a later time, for example when the function in question is actually needed. This deferral means the engine is freer to spend the important cycles right now on the code that's going to run right now. This is a really good thing for JS performance.

Some time later, some JS engine devs realized that they needed to get some hints from the code as to which functions would run right away, and which ones wouldn't. In technical speak, these hints are called heuristics.

So they realized that one very common pattern for knowing that a function was going to run right away is if the first character before the function keyword was a (, because that usually m

lopspower

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

Download This sample on Google Play Store

olexpono

Flexing Flexbox

• By Olex Ponomarenko, CSS Shaman @ Thinkful
• November 9th, 2015

Stuff made by me / presented @ workshop

• Intro slidedeck: http://slides.com/tholex/flexbox
• Sandbox codepen: http://codepen.io/tholex/pen/3eb259573d2513bd085221a73c3ee2be?editors=110
• Keyboard codepen: http://codepen.io/tholex/pen/rgBcn

mikeash

import Cocoa

enum CoroutineState {
    case Fresh, Running, Blocked, Canceled, Done
}

struct CoroutineCancellation: ErrorType {}

class CoroutineImpl<InputType, YieldType> {
    let body: (yield: YieldType throws -> InputType) throws -> Void

imjasonh

* {
    font-size: 12pt;
    font-family: monospace;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
    color: black;
    cursor: default;
}