chris-rock

// Part of https://github.com/chris-rock/node-crypto-examples

// Nodejs encryption of buffers
var crypto = require('crypto'),
    algorithm = 'aes-256-ctr',
    password = 'd6F3Efeq';

var fs = require('fs');
var zlib = require('zlib');

raykendo

Clicking on a map without clicking on a map

An ArcGIS JavaScript API hack

Purpose: I have a map application with a list of results from a query. When I click on one of the items in the result list, I wanted the map to zoom to the associated feature, and trigger a click that shows the result in a popup.

Library: ArcGIS JavaScript API

Version: tested on versions 3.9-3.13.

karpathy

"""
This is a batched LSTM forward and backward pass
"""
import numpy as np
import code

class LSTM:
  
  @staticmethod
  def init(input_size, hidden_size, fancy_forget_bias_init = 3):

iAugur

---
- hosts: servers
  gather_facts: true
  sudo: true

  vars:
     fail2ban_config_ignoreip:
        - "127.0.0.1/8"
        - "{{ ansible_ssh_host }}"

varemenos

Get Git log in JSON format

git log --pretty=format:'{%n  "commit": "%H",%n  "abbreviated_commit": "%h",%n  "tree": "%T",%n  "abbreviated_tree": "%t",%n  "parent": "%P",%n  "abbreviated_parent": "%p",%n  "refs": "%D",%n  "encoding": "%e",%n  "subject": "%s",%n  "sanitized_subject_line": "%f",%n  "body": "%b",%n  "commit_notes": "%N",%n  "verification_flag": "%G?",%n  "signer": "%GS",%n  "signer_key": "%GK",%n  "author": {%n    "name": "%aN",%n    "email": "%aE",%n    "date": "%aD"%n  },%n  "commiter": {%n    "name": "%cN",%n    "email": "%cE",%n    "date": "%cD"%n  }%n},'

The only information that aren't fetched are:

• %B: raw body (unwrapped subject and body)
• %GG: raw verification message from GPG for a signed commit

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)

chadxz

Chrome 46 WebRTC Renegotiation Issues

The below SDP is recreated using the following steps:

• Participant A offers audio+video to Participant B
• B answers with audio+video
• Call connected.
• A renegotiates to remove audio, making it a video-only call from it's side
  • calls getUserMedia with { audio: false, video: true }
• removes all streams from the peer connection, and adds the stream from getUserMedia

leedm777

IETF standards:

• IPv4
  • IPv6, in some situations
• TCP
• UDP
• HTTP/HTTPS
  • HTTP2 in progress
  • TLS
• SDP

davidfurlong

How to use Bookshelf with postgis and knex-postgis without the hassle

Using Bookshelf.js with postgis and knex-postgis is a huge pain in the ass.

TLDR - Override Bookshelf methods to parse postgis formats in JS, not in SQL to avoid having to do awkward Bookshelf modifications anywhere you make a bookshelf insert/update/delete on Geo data (middleware like approach)

class Event extends Bookshelf.Model {
  get tableName() { return 'event'; }

zimmicz

const express = require("express")
const app = express()
const { Pool } = require("pg")
const SphericalMercator = require("sphericalmercator")
const pool = new Pool({
    host: "localhost",
    port: 15432,
    user: "postgres",
    database: "postgres"
})