psenger

{
  "name": "",
  "version": "0.0.1",
  "description": "",
  "main": "dist/index.js",
  "files": [
    "dist"
  ],
  "authors": [
  ],

psenger

/**
 * https://stackoverflow.com/questions/9804777/how-to-test-if-a-string-is-json-or-not
 */
const isJson = function isJson(item) {
    if ( Array.isArray(item)) return false;
    if ( Buffer.isBuffer(item)) return false;
    // by doing this, JSON.parse(1234) or JSON.parse(0) or JSON.parse(false) or JSON.parse(null) are invalid.
    item = typeof item !== 'string' ? JSON.stringify(item) : item;
    try {
        item = JSON.parse(item);

psenger

mtoc() {
    # now gives you a command mtoc "somemarkdown.md" to the clipboard
    npx markdown-toc "$1" | pbcopy
}

psenger

// https://code-boxx.com/javascript-permutations-combinations/#sec-combi
// Combinations refer to the number of variations we can create from a list of things. The order of things does not matter.

function allCombinations (items) {
// allCombinations () : return a list of all possible combinations
// PARAM items : array of items
 
  let results = [];
  for (let slots = items.length; slots > 0; slots--) {
    for (let loop = 0; loop < items.length - slots + 1; loop++) {

psenger

# Using Python
import os, zipfile

z = zipfile.ZipFile('/databricks/driver/D-Dfiles.zip')
for f in z.namelist():
    if f.endswith('/'):
        os.makedirs(f)
        
# Reading zipped folder data in Pyspark

psenger

How to create a Public Gist Service:

Step 0: Open Automator, New Service.

Step 1: Drag out Run Shell Script action. Pass Input to STDIN

Step 2: This code:

open `gist`

psenger

get past an error if you use GPG to sign your git commits

If you get an error like this.

$ gpg --recipient "Mr Monkey Go Boom Boom" --armor --encrypt foo.txt 
gpg: 85A71139B659E03A: There is no assurance this key belongs to the named user
gpg: Sorry, no terminal at all requested - can't get input
$

psenger

import org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.openssl.jcajce.JcaPEMKeyConverter;
import org.jose4j.jws.AlgorithmIdentifiers;
import org.jose4j.jws.JsonWebSignature;
import org.jose4j.lang.JoseException;

import java.io.IOException;
import java.security.PrivateKey;
import java.security.PublicKey;

psenger

const assert = require('assert');

/**
 * Promise ALL, technique v1 - an approach to understanding Promise.All
 * @param promises
 * @returns {*}
 * @constructor
 */
const PromiseAll = function PromiseAll ( promises = [] ) {
    promises = promises === null ? [] : promises;

psenger

/* 
Reference: https://stackoverflow.com/questions/40639432/what-is-the-best-way-to-limit-concurrency-when-using-es6s-promise-all

[Symbol.iterator]() is equivalent to .values()
const iterator = [1,2,3][Symbol.iterator]() 
*/
const iterator = [1,2,3].values()

// loop over all items with for..of
for (const x of iterator) {