iwek

//return an array of objects according to key, value, or key and value matching
function getObjects(obj, key, val) {
    var objects = [];
    for (var i in obj) {
        if (!obj.hasOwnProperty(i)) continue;
        if (typeof obj[i] == 'object') {
            objects = objects.concat(getObjects(obj[i], key, val));    
        } else 
        //if key matches and value matches or if key matches and value is not passed (eliminating the case where key matches but passed value does not)
        if (i == key && obj[i] == val || i == key && val == '') { //

jackiekazil

How do I round to 2 decimals?

In python, you have floats and decimals that can be rounded. If you care about the accuracy of rounding, use decimal type. If you use floats, you will have issues with accuracy.

All the examples use demical types, except for the original value, which is automatically casted as a float.

To set the context of what we are working with, let's start with an original value.

Original Value

rxaviers

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

GuillaumeJasmin

String.prototype.extract = function(prefix, suffix) {
	s = this;
	var i = s.indexOf(prefix);
	if (i >= 0) {
		s = s.substring(i + prefix.length);
	}
	else {
		return '';
	}
	if (suffix) {

Snaipe

Please note that the article is now on my website, and even though I am still working on it, any feedback is appreciated. Thanks for reading !

On the Quest of recoding malloc(3)

Back when I did not know anything about programing and started to learn C, I was first introduced to pointers (and other dreaded horrors that made me curl into a corner and cry) and dynamic memory in general.

I was baffled, troubled, yet fascinated by the basic explanation on how memory worked, and started to dread the time where I would need to manually create my char arrays for each and every sentences of my program; right before learning about string literals and feeling like an idiot.

It was then where I was learning about memory allocation and came upon a function that I would call for long the "magic function" : malloc. Magic, because at that point I didn't know how it worked, let alone knew anything about memory other that it was a "chain of boxes for numbers".

kekscom

var json = '...'; // your truncated json data here

var chunk = json;

var m, q = false;
var stack = [];

while (m = chunk.match(/[^\{\[\]\}"]*([\{\[\]\}"])/)) {
  switch (m[1]) {
    case '{':

TheWaWaR

import os

app = '{YOUR-WSGI-APPLICATION}'

# Sample Gunicorn configuration file.

#
# Server socket
#
#   bind - The socket to bind.

MattWilcox

#!/usr/bin/env bash

# names of latest versions of each package
export VERSION_PCRE=pcre-8.38
export VERSION_OPENSSL=openssl-1.0.2d
export VERSION_NGINX=nginx-1.9.7

# URLs to the source directories
export SOURCE_OPENSSL=https://www.openssl.org/source/
export SOURCE_PCRE=ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/

tmarshall

var AWS = require('aws-sdk');

AWS.config.update({
  accessKeyId: '{AWS_KEY}',
  secretAccessKey: '{AWS_SECRET}',
  region: '{SNS_REGION}'
});

var sns = new AWS.SNS();

kriegsman

#include <FastLED.h>

#define LED_PIN     3
#define NUM_LEDS    30
#define BRIGHTNESS  96
#define LED_TYPE    WS2811
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];

#define UPDATES_PER_SECOND 100