dylanvee

# This snippet does everything I've ever wanted out of imagemagick. 
# Equivalent to cropping to min(width, height) by min(width, height) and resizing to N x N. 
# See http://www.imagemagick.org/Usage/thumbnails/#cut
# If you're writing this in bash or zsh, don't forget to escape the ^ with a backslash
convert -resize 256x256^ -extent 256x256 in.png out.png

dylanvee

from google.appengine.ext import db, ndb
from google.appengine.datastore import entity_pb

def db_entity_to_protobuf(e):
    return db.model_to_protobuf(e).Encode()

def protobuf_to_db_entity(pb):
    # precondition: model class must be imported
    return db.model_from_protobuf(entity_pb.EntityProto(pb))

dylanvee

var limit = 500;

$.get("/api/v1/dev/publish_list/" + limit + "?casing=camel").done(function(response) {    
    var statuses = _.chain(response)
                        .map(function(status) {
                            return {
                                timestamp: parseISO8601(status.startTime),
                                successful: status.success
                            }
                        })

dylanvee

Coach Reports
    Exercise filter
        /api/v1/exercise_topics
    Student Progress
        /api/v1/user/students/progressbystudent
    Exercise Progress
        /api/v1/user/students/progress/summary
    Grid
        /api/v1/user/students/progressreport
    Activity

dylanvee

This list is taken from my dev datastore so it might be slightly out 
of date compared to the live site, but it's a good approximation.

Exponent properties
    	simplifying_expressions_with_exponents
	simplifying_rational_expressions_1
Factoring quadratics in two variables
	factoring_polynomials_with_two_variables
Factoring simple expressions
	factoring_linear_binomials

dylanvee

{
  "translated_short_display_name": "",
  "assessment_items": [],
  "relative_url": "/exercise/multiplying_expressions_0.5",
  "guaranteed_file_name": "multiplying_expressions_0.5.html",
  "file_name": "multiplying_expressions_0.5.html",
  "covers": [],
  "creation_date": "2012-03-02T03:30:14Z",
  "uses_assessment_items": false,
  "ka_url": "http://www.khanacademy.org/exercise/multiplying_expressions_0.5",

dylanvee

// promises is an array of jqXHRs or what have you
var deferreds = _.map(promises, function(promise) {
    var deferred = $.Deferred();
    promise.then(
        function() {
            deferred.resolve(true);
        },
        function() {
            deferred.resolve(false);
        }

dylanvee

khan
khanacaste
khanacre
khanal
khanalbumin
khanamed
khanarial
khanarium
khanation
khanational

dylanvee

var teaser = _.chain(data.stories)
                .pluck("teaser")
                .filter(function(t) { return !!t.length; })
                .shuffle()
                .first()
                .value();

dylanvee

var teaser = _.chain(data.stories)
                .pluck("teaser")
                .filter(function(t) { return t && t.length })
                .shuffle()
                .first()
                .value();