jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

karpathy

"""
Minimal character-level Vanilla RNN model. Written by Andrej Karpathy (@karpathy)
BSD License
"""
import numpy as np

# data I/O
data = open('input.txt', 'r').read() # should be simple plain text file
chars = list(set(data))
data_size, vocab_size = len(data), len(chars)

DanielSlater

import tensorflow as tf
import numpy as np

NUM_STATES = 10
NUM_ACTIONS = 2
GAMMA = 0.5


def hot_one_state(index):
    array = np.zeros(NUM_STATES)

robert52

'use strict';

const DEF_CURRENCY = 'USD';
const DEF_SCALE_FACTOR = 100;

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const ObjectId = Schema.ObjectId;

const MoneySchema = new Schema({

xavierlepretre

module.exports = {
    promisify: function (web3) {
        // Pipes values from a Web3 callback.
        var callbackToResolve = function (resolve, reject) {
            return function (error, value) {
                    if (error) {
                        reject(error);
                    } else {
                        resolve(value);
                    }

learner-long-life

How to get on Rinkeby Testnet in less than 10 minutes

Following instructions from the excellent https://www.rinkeby.io/

Synchronizing a Full Node

A full node lets you access all state. There is a light node (state-on-demand) and wallet-only (no state) instructions as well,

captainsafia

#! /usr/bin/env node
'use strict';

const program = require('commander');
const fs = require('fs');
const { spawn } = require('child_process');

program
  .version('1.0.0')
  .option('-e, --environment <environment>', 'Environment to deploy to')

-

pragma solidity ^0.4;

contract BigSpender {
    uint writeToMe;
    
    function writes(uint){
        writeToMe = 1; // this throws if gas given is less than 20k
    }
}

justsml

Fetch API Examples

⚠️ 2019-2020: See more examples and updates on my article here!

https://danlevy.net/you-may-not-need-axios/

=====================================================

rfikki

admin.addPeer("enode://8c5131f577ee602ccaad5e5f600011c024d43d33e6af6f8a89ed26cbfadd7efe903a8e426dde4071b857e0838a2efa29ae3b268f8b55acd59e72d4a919673cbc@13.251.47.174:30303");
admin.addPeer("enode://798b8eba7b65cdd71bb061a6b18a1f7d16612d54e1aa542d8dc5c3573322b5dd7496c1eea100dbb84f8495d89f3d5ddb4142b0006a73cd32daa2f643bd5d1c76@175.24.29.183:30311");
admin.addPeer("enode://9a4be35fec78cf91e7e959029ae3f5d3d3e86446186eb14f181c8f3b9917f57839ef98d4ba53cf06eb4fea696ecc14796b34d96db4f4294864edfcab27dd9956@31.220.51.107:30303");
admin.addPeer("enode://2763ab6d19d6e7ce7a953ba95c9a87fe6ae5eac3434bf216282f53142d89cb5451faa701311d7de1d79cc8ecbd57f1781156e26f5722aee835547aeab870e385@52.237.88.221:30303");
admin.addPeer("enode://81488a6c0b62aa14a1172d607893b6317e4f2565ca2bd73c7c0b8bfd55842af6b7972218728d1f352b3fddc61d0dccbf92e81d2bbfdc375db44ae44ee332d4db@88.198.59.75:30303");
admin.addPeer("enode://3d55f613d74e90f5b8a4154d20d8a7260a973751c1402bf52adde2b08b72a9e0327a522bf187765f2d6e2a3b893dfe7aa41b204bce5f793bd9470f24fa3aafc