rclark

/*
You'll need something like this in your HTML:
<script src="http://d3js.org/topojson.v1.min.js"></script>
*/

L.TopoJSON = L.GeoJSON.extend({
  addData: function(jsonData) {    
    if (jsonData.type === "Topology") {
      for (key in jsonData.objects) {
        geojson = topojson.feature(jsonData, jsonData.objects[key]);

badboy

Original link: http://www.concentric.net/~Ttwang/tech/inthash.htm
Taken from: http://web.archive.org/web/20071223173210/http://www.concentric.net/~Ttwang/tech/inthash.htm
Reformatted using pandoc

Integer Hash Function

Thomas Wang, Jan 1997

last update Mar 2007

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

Stanback

# Note (November 2016):
# This config is rather outdated and left here for historical reasons, please refer to prerender.io for the latest setup information
# Serving static html to Googlebot is now considered bad practice as you should be using the escaped fragment crawling protocol

server {
    listen 80;
    listen [::]:80;
    server_name yourserver.com;

    root /path/to/your/htdocs;

uniphil

Say you have a package with this layout:

my_project/
    my_app/
        files/
            im_a_file.txt
        __init__.py
    run_my_app.py

gustavohenke

var svg = document.querySelector( "svg" );
var svgData = new XMLSerializer().serializeToString( svg );

var canvas = document.createElement( "canvas" );
var ctx = canvas.getContext( "2d" );

var img = document.createElement( "img" );
img.setAttribute( "src", "data:image/svg+xml;base64," + btoa( svgData ) );

img.onload = function() {

lifthrasiir

No Box<T>

tl;dr: Avoid Box<T> in general.

Actually, this rule is so important that the Rust Pointer Guide explicitly says the same. Therefore without a further ado, you should avoid Box<T> except for these three cases:

1. When you absolutely need a trait object (Box<Trait>). But review carefully to see if it is indeed absolutely needed; you may try to generalize things too far, for example.

2. When you have a recursive data structure. This may be mandatory when you have an inherently recursive data (e.g. scene graph), but it may also be a sign of the premature optimization. Again, review carefully to see if you need to write a separate data structure yourself, and use the collection crate if possible.

spitz-dan-l

from itertools import chain, starmap

def remove_spans(s, spans):
    to_drop = set(chain(*starmap(range, spans)))
    return ''.join(c for (i, c) in enumerate(s) if i not in to_drop)

ianonavy

def memoize_to_file(func=None, **options):
    """Wraps a function definition so that if the function is ever
    called with the same arguments twice, the results are pulled from
    a cache stored in a file. The filename is specified when decorating
    the memoized function. Iterable objects like dicts, lists or
    pandas DataFrames are cast to a tuple before being hashed, and
    everything else uses the object's __repr__ definition.

    Usage:

bsweger

Useful Pandas Snippets

A personal diary of DataFrame munging over the years.

Data Types and Conversion

Convert Series datatype to numeric (will error if column has non-numeric values)
(h/t @makmanalp)