jdneo

1  copy the file into /etc/init.d/xvfb
2  chmod +x /etc/init.d/xvfb
3  ./etc/init.d/xvfb start
4  # some headless test here
5  ./etc/init.d/xvfb stop

jfsiii

var chunkedUrl = 'https://jigsaw.w3.org/HTTP/ChunkedScript';
fetch(chunkedUrl)
  .then(processChunkedResponse)
  .then(onChunkedResponseComplete)
  .catch(onChunkedResponseError)
  ;

function onChunkedResponseComplete(result) {
  console.log('all done!', result)
}

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

7kfpun

China stock api
1.163_API(0-sh,1-sz):http://api.money.126.net/data/feed/1002151,0600036,hkHSI,hkHSCEI,hk00005
2.QQ_API(sh,sz,s_simple data):http://qt.gtimg.cn/r=0.8409869808238q=s_sz000559,s_sz002434,s_sz002472,s_sz002488,hk00700
3.sina_API(sh,sz,s_simple data):http://hq.sinajs.cn/list=sh600000,sh600004,hk00700,sz002594
# 4.xueqiu_API:http://xueqiu.com/v4/stock/quote.json?code=02318,01211,SH000001,DJI30,HKHSI

163
日内实时盘口（JSON）：
http://api.money.126.net/data/feed/1000002,1000001,1000881,0601398,money.api

nsimmons

Updates without submitting to App Store

This is allowed for ReactNative apps. Source

AppHub.io is one option, open source coming soon.

Building a ReactNative app with Swift

See facebook/react-native#2648

ejoubaud

// Based on http://stackoverflow.com/a/10520017/1307721 and http://stackoverflow.com/a/16022728/1307721

Podium = {};

Podium.keydown = function(k) {
    var oEvent = document.createEvent('KeyboardEvent');

    // Chromium Hack
    Object.defineProperty(oEvent, 'keyCode', {
                get : function() {

martinaglv

function whatDoesItDo(val){

    return val ? 1 : 2;

}

webfrogs

func p_setupTextLayer(text: String) -> CAShapeLayer {
        var letters = CGPathCreateMutable()
        
        let font = CTFontCreateWithName("Helvetica-Bold", 72, nil)
        let attrs = [kCTFontAttributeName: font]
        var attrString = NSAttributedString(string: text, attributes: attrs)
        let line = CTLineCreateWithAttributedString(attrString)
        let runArray = CTLineGetGlyphRuns(line)
        
        

patricksurry

Imitate hand-drawn (imperfect) circles using cubic Bézier segments, based on a Bézier approximation to a perfect circle. TLDR: a good approximation to a quarter circle of unit radius is a cubic Bézier curve with control points P₀ = (0,1), P₁ = (c,1), P₂ = (1,c), P₃ = (1,0) where c = 0.551915024494. By varying the points in a sensible way, we can do a good impression of hand-drawn circles.

konklone

# Basically the nginx configuration I use at konklone.com. 
# I check it using https://www.ssllabs.com/ssltest/analyze.html?d=konklone.com
# 
# To provide feedback, please tweet at @konklone or email eric@konklone.com.
# Comments on gists don't notify the author. 
# 
# Thanks to WubTheCaptain (https://wubthecaptain.eu) for his help and ciphersuites.
# Thanks to Ilya Grigorik (https://www.igvita.com) for constant inspiration.

server {