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@kgorman
kgorman / gist:134896c7414fde8e090b
Last active May 7, 2024 13:34
MongoDB Profiler Cheat Sheet
// a list of useful queries for profiler analysis. Starting with the most basic.
// 2.4 compatible
//
// output explained:
//
{
"ts" : ISODate("2012-09-14T16:34:00.010Z"), // date it occurred
"op" : "query", // the operation type
"ns" : "game.players", // the db and collection
@philfreo
philfreo / gist:0a4d899de4257e08a000
Created August 22, 2014 21:38
4 different ways to save a Highcharts chart as a PNG (with and without a server)
// Method 1: simply use Highcharts built-in functionality (SVG -> Highcharts server -> PNG)
// Downside: won't work in webview native apps that don't handle the form response
highcharts.exportChart({
filename: filename
});
@mpj
mpj / classless.md
Last active September 21, 2024 15:03

The future is here: Classless object-oriented programming in JavaScript.

Douglas Crockford, author of JavaScript: The Good parts, recently gave a talk called The Better Parts, where he demonstrates how he creates objects in JavaScript nowadays. He doesn't call his approach anything, but I will refer to it as Crockford Classless.

Crockford Classless is completely free of class, new, this, prototype and even Crockfords own invention Object.create.

I think it's really, really sleek, and this is what it looks like:

function dog(spec) {
@tuxfight3r
tuxfight3r / ssh-keygen
Last active February 27, 2025 17:34
ssh key / fingerprint tricks
#Read multiple keys from an authorized_keys file and print the finger print
[root@server01 .ssh]# while read line; do ssh-keygen -l -f /dev/stdin <<< $line; done < authorized_keys
2048 87:7a:4d:70:d2:10:a4:4b:b7:e1:2b:7c:77:92:25:04 /dev/stdin (RSA)
2048 7d:f0:89:94:00:09:bc:70:46:59:8d:9a:70:3b:ac:70 /dev/stdin (RSA)
2048 61:63:ee:0d:f6:d2:d8:d6:ae:37:0c:35:ae:da:51:6a /dev/stdin (RSA)
#read a key from authorized key file
[root@server01 .ssh]# ssh-keygen -l -f authorized_keys
2048 87:7a:4d:70:d2:10:a4:4b:b7:e1:2b:7c:77:92:25:04 authorized_keys (RSA)

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

@sebmarkbage
sebmarkbage / Enhance.js
Last active February 10, 2025 06:23
Higher-order Components
import { Component } from "React";
export var Enhance = ComposedComponent => class extends Component {
constructor() {
this.state = { data: null };
}
componentDidMount() {
this.setState({ data: 'Hello' });
}
render() {
@xtuc
xtuc / testApplet.java
Last active September 28, 2015 11:27
Java card
package testPackage;
/*
* Package: testPackage
* Filename: TestApplet.java
* Class: TestApplet
* Date: [[10 June]] of [[2015]] 14:55:52
*/
@13k
13k / foundation.go
Last active September 20, 2022 16:23
Accessing Foundation Framework from Go with cgo
// How to build: "CC=clang go build"
package main
import (
"fmt"
"net/url"
"strconv"
"unsafe"
)
@0XDE57
0XDE57 / config.md
Last active April 22, 2025 18:51
Firefox about:config privacy settings

ABOUT

about:config settings to harden the Firefox browser. Privacy and performance enhancements.
To change these settings type 'about:config' in the url bar. Then search the setting you would like to change and modify the value. Some settings may break certain websites from functioning and rendering normally. Some settings may also make firefox unstable. I am not liable for any damages/loss of data.

Not all these changes are necessary and will be dependent upon your usage and hardware. Do some research on settings if you don't understand what they do. These settings are best combined with your standard privacy extensions (HTTPS Everywhere No longer required: Enable HTTPS-Only Mode, NoScript/Request Policy, uBlock origin, agent spoofing, Privacy Badger etc), and all plugins set to "Ask To Activate".

@mangalaman93
mangalaman93 / sysserver.go
Last active May 14, 2024 02:39
setting low level socket options in golang (SO_PRIORITY, SO_REUSEADDR)
package main
import (
"bufio"
"fmt"
"net"
"os"
"syscall"
)