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John Lee johnteee

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@soomtong
soomtong / summernote.php
Last active March 2, 2022 12:14
(deprecated) summernote example with php
<!-- this version of sample is too old. it's not follow recent version of summernote api -->
<!-- should check new apis and examples! sorry I am. -->
<!DOCTYPE html>
<html lang="en">
<!-- include libries(jQuery, bootstrap, fontawesome) -->
<script src="//code.jquery.com/jquery-1.9.1.min.js"></script>
<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.no-icons.min.css" rel="stylesheet">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<link href="//netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.min.css" rel="stylesheet">
@gotcake
gotcake / reference_counting.c
Created October 29, 2013 19:45
A small implementation of reference counting for C. Frees the programmer from keeping track of pointers and knowing when to free them when they are shared between multiple structures and functions.
#include "reference_counting.h"
#include <stdio.h>
#define NULL 0
// reference counting....
static struct m_ref {
void *ptr;
int count;
struct m_ref *next;
@ms-tg
ms-tg / jdk8_optional_monad_laws.java
Created November 11, 2013 21:14
Does JDK8's Optional class satisfy the Monad laws? Yes, it does.
/**
* ```
* Does JDK8's Optional class satisfy the Monad laws?
* =================================================
* 1. Left identity: true
* 2. Right identity: true
* 3. Associativity: true
*
* Yes, it does.
* ```
@sergiotapia
sergiotapia / images_dimensions.go
Last active April 16, 2025 17:28
Golang - Getting the dimensions of an image. jpg, jpeg, png
package main
import (
"fmt"
"image"
"os"
_ "image/jpeg"
_ "image/png"
)
@matt448
matt448 / slack_nagios.sh
Last active February 13, 2023 15:38
Script to post Nagios notifications into a Slack channel
#!/bin/bash
# This script is used by Nagios to post alerts into a Slack channel
# using the Incoming WebHooks integration. Create the channel, botname
# and integration first and then add this notification script in your
# Nagios configuration.
#
# All variables that start with NAGIOS_ are provided by Nagios as
# environment variables when an notification is generated.
# A list of the env variables is available here:
@jakelazaroff
jakelazaroff / .tmux.conf
Created January 2, 2014 16:21
Some screen key bindings for tmux.
# set prefix to ctrl+a
unbind C-b
set -g prefix C-a
bind a send-prefix
# use space to cycle between windows
bind-key C-a last-window
bind-key Space next-window
bind-key C-Space previous-window
@denji
denji / nginx-tuning.md
Last active September 15, 2026 06:55
NGINX tuning for best performance

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

@huonw
huonw / blackmagic.rs
Created January 15, 2014 12:42
do-while loops in Rust
while {
let x = foo();
bar(x);
x != 0
} {}
@nmsdvid
nmsdvid / new_gist_file.js
Created February 4, 2014 16:32
Simple JavaScript Debounce Function
// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
function debounce(func, wait, immediate) {
var timeout;
return function() {
var context = this, args = arguments;
clearTimeout(timeout);
@rrgrs
rrgrs / installvagrant
Last active February 21, 2025 05:41
installs brew, virtualbox, and vagrant in osx
if ! type "brew" > /dev/null; then
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)";
fi
brew cask install vagrant;
brew cask install virtualbox;