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Solidity lets you program on Ethereum, a blockchain-based virtual machine that allows the creation and execution of smart contracts, without needing centralized or trusted parties.
Solidity is a statically typed, contract programming language that has similarities to Javascript and C. Like objects in OOP, each contract contains state variables, functions, and common data types. Contract-specific features include modifier (guard) clauses, event notifiers for listeners, and custom global variables.
Some Ethereum contract examples include crowdfunding, voting, and blind auctions.
As Solidity and Ethereum are under active development, experimental or beta features are explicitly marked, and subject to change. Pull requests welcome.
// First, a simple Bank contract
// Allows deposits, withdrawals, and balance checks
// simple_bank.sol (note .sol extension)
/* **** START EXAMPLE **** */
anonymous
anonymous / index.html
Created August 7, 2016 12:10
JS Bin // source http://jsbin.com/nabufitipa
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
<style id="jsbin-css">
body {
height:9999px;
width:100%;
// We allocate a file with the size of the downloaded file so we can
// append chunks randomly to diffrent position as we download the file
function allocateDisk(size, callback){
fss.cwd.getFile(prompt("Filename","movie.mp4"), {create: true}, (fileEntry) => {
fileEntry.createWriter((writer) => {
var blob = new Blob([new ArrayBuffer(1.049e+8)])
writer.onerror = (err) => {
@paullewis
paullewis / requestIdleCallback.js
Last active April 23, 2025 04:07
Shims rIC in case a browser doesn't support it.
/*!
* Copyright 2015 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@staltz
staltz / introrx.md
Last active October 14, 2025 19:39
The introduction to Reactive Programming you've been missing
@thoop
thoop / nginx.conf
Last active May 27, 2025 07:08
Official prerender.io nginx.conf for nginx
# Change YOUR_TOKEN to your prerender token
# Change example.com (server_name) to your website url
# Change /path/to/your/root to the correct value
server {
listen 80;
server_name example.com;
root /path/to/your/root;
index index.html;
@konklone
konklone / ssl.rules
Last active May 31, 2025 01:44
nginx TLS / SSL configuration options for konklone.com
# 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 [email protected].
# 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 {
@impressiver
impressiver / raven-config.html
Last active October 26, 2024 15:03
Raven.js configuration for logging JavaScript exceptions to Sentry (https://getsentry.com/). Without the added ignore options, you'll quickly find yourself swamped with unactionable exceptions due to shoddy browser plugins and 3rd party script errors.
<!-- Raven.js Config -->
<script src="{{ JS_PATH }}/lib/raven.js" type="text/javascript"></script>
<script type="text/javascript">
// Ignore list based off: https://gist.github.com/1878283
var ravenOptions = {
// Will cause a deprecation warning, but the demise of `ignoreErrors` is still under discussion.
// See: https://github.com/getsentry/raven-js/issues/73
ignoreErrors: [
// Random plugins/extensions
'top.GLOBALS',
@KartikTalwar
KartikTalwar / Documentation.md
Last active October 12, 2025 04:53
Rsync over SSH - (40MB/s over 1GB NICs)

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

  • a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
  • H: preserves hard-links
  • A: preserves ACLs
@perky
perky / ProFi.lua
Created May 30, 2012 20:32
ProFi, a simple lua profiler that works with LuaJIT and prints a pretty report file in columns.
--[[
ProFi v1.3, by Luke Perkin 2012. MIT Licence http://www.opensource.org/licenses/mit-license.php.
Example:
ProFi = require 'ProFi'
ProFi:start()
some_function()
another_function()
coroutine.resume( some_coroutine )
ProFi:stop()