igauravsehrawat

dog.legs.walk! if dog.normal?
dog.hover_craft.hover! if dog.robot?

igauravsehrawat

/* Merge sort in C */
#include<stdio.h>
#include<stdlib.h>

// Function to Merge Arrays L and R into A. 
// lefCount = number of elements in L
// rightCount = number of elements in R. 
void Merge(int *A,int *L,int leftCount,int *R,int rightCount) {
	int i,j,k;

igauravsehrawat

// Alternative JavaScript Syntax

Person = :(name, address) { @name!, @address! }
Person::inspect = :{ <: "{@name} lives at {@address}" }

tj := Person('TJ', '314 Bessborough ave')
bob := Person('Bob', 'Some place')
[tj, bob].each(:(person){ print(person.inspect()) })

igauravsehrawat

# ipak function: install and load multiple R packages.
# check to see if packages are installed. Install them if they are not, then load them into the R session.

ipak <- function(pkg){
    new.pkg <- pkg[!(pkg %in% installed.packages()[, "Package"])]
    if (length(new.pkg)) 
        install.packages(new.pkg, dependencies = TRUE)
    sapply(pkg, require, character.only = TRUE)
}

igauravsehrawat

Essential JavaScript Links

A curated list by Eric Elliott and friends. Suggest links in the gist comments.

Help us turn this into a proper website!

This is a very exclusive collection of only must-have JavaScript links. I'm only listing my favorite links. Nothing else makes the cut. Feel free to suggest links if you think they're good enough to make this list. The really curious should feel free to browse the comments to find other links. I can't guarantee the quality of links in the comments.

Full Disclosure

igauravsehrawat

Since this is on Hacker News...

• No, I don't distribute my résumé like this. A friend of mine made a joke about me being the kind of person who would do this, so I did (the link on that page was added later).
• I apologize for the use of _t in my types. I spend a lot of time at a level where I can do that; "reserved for system libraries? I am the system libraries".
• They're all while loops because shut up, you're overthinking a joke.

igauravsehrawat

from pyparsing import *

# By default, PyParsing treats \n as whitespace and ignores it
# In our grammer, \n is significant, so tell PyParsing not to ignore it
ParserElement.setDefaultWhitespaceChars(" \t")

def parse(input_string):
    def convert_prop_to_dict(tokens):
        """Convert a list of field property tokens to a dict"""
        prop_dict = {}

igauravsehrawat

This is a plain-text version of Bret Victor’s reading list. It was requested by hf on Hacker News.

---

Highly recommended things!

This is my five-star list. These are my favorite things in all the world.

A few of these works have had an extraordinary effect on my life or way of thinking. They get a sixth star. ★

igauravsehrawat

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

So you're curious in learning this new thing called Reactive Programming, particularly its variant comprising of Rx, Bacon.js, RAC, and others.

Learning it is hard, even harder by the lack of good material. When I started, I tried looking for tutorials. I found only a handful of practical guides, but they just scratched the surface and never tackled the challenge of building the whole architecture around it. Library documentations often don't help when you're trying to understand some function. I mean, honestly, look at this:

Rx.Observable.prototype.flatMapLatest(selector, [thisArg])

Projects each element of an observable sequence into a new sequence of observable sequences by incorporating the element's index and then transforms an observable sequence of observable sequences into an observable sequence producing values only from the most recent observable sequence.

igauravsehrawat

import sys


#
# ParserInput
#
# This class represents the input data and the current
# position in the data.
#
# Brief note about 'max_position':