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John Lee johnteee

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@juliengdt
juliengdt / lowpower_mode.md
Last active August 26, 2023 18:26
Detect and make your iPhone app responds to low-power mode

Low Power Mode - LPM

With iOS 9 Apple added a Low Power Mode to the iPhone. It extends battery life by stopping some battery heavy features such as email fetch, Hey Siri and background app refresh until you can recharge the device.

It is important to understand that it is the user who decides to enter low power mode. You need to go into the battery settings to turn it on.

Detection

To detect LPM you have to be in the couple iOS 9.X / iPhone:

  • For iOS 8.X, you need test availablity before use it
@guiliredu
guiliredu / facebook-page-invite.js
Last active March 16, 2026 02:40
Facebook - Script to auto invite people who liked a page post do like the page
var buttons;
buttons = document.getElementsByClassName('_42ft');
for (var i = 0; i < buttons.length; i++) {
if(buttons[i].getAttribute('ajaxify') != null){
if(buttons[i].getAttribute('ajaxify').indexOf('invite') != -1){
buttons[i].click();
}
}
}
@kkirsche
kkirsche / inetAton-inet6Aton.go
Last active October 25, 2022 15:18
inet_aton and inet6_aton in Golang
package nessusProcessor
import (
"encoding/hex"
"math/big"
"net"
)
// Inet_Aton converts an IPv4 net.IP object to a 64 bit integer.
func Inet_Aton(ip net.IP) int64 {
@sindbach
sindbach / mongodb_lookup.go
Created April 15, 2016 00:40
A simple example of how to use $lookup in Golang using mgo.
package main
import (
"fmt"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
)
func main() {
session, err := mgo.Dial("localhost")
if err != nil {
@statickidz
statickidz / nearby-coordinates.sql
Last active February 3, 2026 19:20
Ordering with SQL by nearest latitude & longitude coordinates (MySQL & SQLite)
---
METHOD 1
This should roughly sort the items on distance in MySQL, and should work in SQLite.
If you need to sort them preciser, you could try using the Pythagorean theorem (a^2 + b^2 = c^2) to get the exact distance.
---
SELECT *
FROM table
ORDER BY ((lat-$user_lat)*(lat-$user_lat)) + ((lng - $user_lng)*(lng - $user_lng)) ASC
@subfuzion
subfuzion / curl.md
Last active August 20, 2026 18:53
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

@alexchowle
alexchowle / pingpong.go
Created February 7, 2016 16:57
Simple golang pingpong
package main
import (
"fmt"
)
func main() {
pingChan := make(chan string)
pongChan := make(chan string)
@kwrooijen
kwrooijen / threading.scm
Last active April 1, 2023 00:52
Clojure's threading macro in scheme
(define-syntax ->
(syntax-rules ()
([_ value]
value)
([_ value snd rest ...]
(cond
[(list? 'snd)
(let ([f (primitive-eval (car 'snd))]
[args (cons value (cdr 'snd))])
(-> (apply f args) rest ...))]
@nathansearles
nathansearles / isAutoplaySupported.js
Last active December 13, 2022 11:06
Test if HTML5 video autoplay is supported
// isAutoplaySupported(callback);
// Test if HTML5 video autoplay is supported
isAutoplaySupported = function(callback) {
// Is the callback a function?
if (typeof callback !== 'function') {
console.log('isAutoplaySupported: Callback must be a function!');
return false;
}
// Check if sessionStorage exist for autoplaySupported,
// if so we don't need to check for support again