Things I Regret About Node.js
https://www.youtube.com/watch?v=M3BM9TB-8yA
If I'd still been working on networking at the time, that never would have happened. But I was off doing stuff for a startup called Autodesk.
const isCharging = require('is-charging'); | |
const bluebird = require('bluebird'); | |
const exec = require('child_process').exec; | |
(async () => { | |
while (true) { | |
let charging = await isCharging() | |
console.log(charging) | |
if(!charging){ |
Things I Regret About Node.js
https://www.youtube.com/watch?v=M3BM9TB-8yA
If I'd still been working on networking at the time, that never would have happened. But I was off doing stuff for a startup called Autodesk.
package main | |
import ( | |
"fmt" | |
"github.com/xitongsys/parquet-go/ParquetFile" | |
"github.com/xitongsys/parquet-go/Plugin/JSONWriter" | |
"log" | |
) | |
func main() { |
var BoostSpatialIndex = require('boost-geospatial-index'); | |
var _ = require("lodash"); | |
var bsi = new BoostSpatialIndex(); | |
var districts = require("/Users/feikolai/Downloads/hkpolygon.json"); | |
bsi.addBoundingBox('Hong Kong', 113.5932, 22.1022, 114.7104, 22.6188); | |
districts.features.map(f => { |
Generally, there are two kinds of error handling among all programming langauges:
try-catch
, superviser with actors
. This style is usually preferrable with scripting.package main | |
import ( | |
"sync" | |
"testing" | |
"singleflight" | |
) | |
func BenchmarkSingleFlight(b *testing.B) { | |
group := &singleflight.Group{} |
// Copyright 2013 The Go Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style | |
// license that can be found in the LICENSE file. | |
// Package singleflight provides a duplicate function call suppression | |
// mechanism. | |
package singleflight | |
import "sync" |
function foo(cb) { | |
cb(); | |
} | |
console.time("anonymous function"); | |
for (var i = 0; i < 10000000; i++) { |
關於月用量超過5GB的大家,如果求高數據用量,直到25-12-2016截稿前最新消息如下: | |
1) 4G版3台核武卡(42-150Mbps 4G)$119.1/5GB FUP/30日(原價$188) )(可MNP轉台) | |
2) 3G版3台核武卡(42Mbps 3G)$119.1/5GB FUP/30日(原價$188) )(可MNP轉台) | |
3) 中國移動 4G/3G數據及話音儲值卡 $88卡 (384kbps-7XXkbps 3G/4G) $69.3/30日(原價$90)(可MNP轉台) | |
4) 數碼通 $48卡*15張 =$360/30日(原價$720) | |
5) 數碼通限速Plan 3G測試卡(384kbps 3G)=$87.5~ 96.2/30日(原價$98) | |
6) 數碼通4G限速卡(1Mbps 4G,10GB FUP後512kbps)= $96.4~106.1/30日(原價$108) | |
7) 數碼通42.2Mbps 3G 30日儲值卡 =$198.4~$217.3/30日 | |
8) 數碼通100Mbps 4G半日全速及1Mbps 4G半日限速 30日儲值卡 =$151~157.9/30日 | |
9) 大檸樂卡4G 全速30日儲值卡(16Mbps 4G) $195/15GB FUP+無限分鐘/30日 |
package hello | |
import ( | |
"testing" | |
"sync" | |
) | |
func benchmarkChannel(b *testing.B, nProducer int) { | |
ch := make(chan int) | |
var wg sync.WaitGroup |