johanastborg

from colorama import Fore, Back, Style

def my_decorator(func):
    def wrapper():
        print("Something is happening before the function is called.")
        print(Fore.GREEN)
        func()
        print(Style.RESET_ALL)
        print("Something is happening after the function is called.")
    return wrapper

johanastborg

let print_list f lst =
  let rec print_elements = function
    | [] -> ()
    | h::t -> f h; print_string "\n"; print_elements t
  in
  print_string "";
  print_elements lst;
  print_string "";;

johanastborg

import pandas as pd

df = pd.DataFrame({
  "timestamp": pd.date_range("now", periods=6),
  "value": [1.005, 1.015, 1.020, 1.010, 1.000, 1.015],
  "symbol": ['EUR/USD']*6,
  "exchange": ['OTC']*6,
  "description": ['EURUSD']*6
})

johanastborg

@font-size: 12px;
html, body, .tree-view, .tab-bar .tab {
  font-size: @font-size;
}

johanastborg

var stream = require('stream');
var util = require('util');
const fs = require('fs');

var Transform = stream.Transform;

function Upper(options) {
  if (!(this instanceof Upper)) {
    return new Upper(options);
  }

johanastborg

const fs = require('fs');

const localFilename1 = 'input.txt';
const localFilename2 = 'output.txt';

let rs = fs.createReadStream(localFilename1);
let ws = fs.createWriteStream(localFilename2);
rs.pipe(ws);

johanastborg

let translation = {'a': 'apa', 'b': 'beta'}

_.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) { 
  if(translation[key]) result[translation[key]] = value; 
  return result;
}, {});

// {apa: 1, beta: 2}

johanastborg

//-------------------------------------------------------
/* data:csv
NAME,AGE,PHONE,CITY
Daffy Duck,24,08-123987,Stockholm
Bugs Bunny,22,08-987123,Copenhagen
Bunny Duck,31,08-719823,Paris
*/

const stream = require('stream');
const fs = require('fs');

johanastborg

const crypto = require('crypto')
const _ = require('lodash');

let translation = {'name': 'symbol', 'age': 'age', 'phone': 'mobile'};
let keys = _.keys(translation);
let string = keys.join(':');
let hash = crypto.createHash('md5').update('string').digest("hex");

console.log(string + " == > " + hash);

johanastborg

//
// Parse string to a format
//
const _ = require('lodash');

// Try parse to Date
function tryParseDate(obj) {
  let d = Date.parse(obj);
  if (_.isNaN(d)) {
    return {type: 'string', value: obj};