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/* eslint-disable @typescript-eslint/no-var-requires */ | |
/** | |
* How to run: | |
* - export AWS_PROFILE | |
* - export AWS_REGION=us-east-1 | |
*/ | |
const DynamoDB = require("aws-sdk/clients/dynamodb"); | |
const dynamodb = new DynamoDB(); | |
const DocumentClient = new DynamoDB.DocumentClient(); |
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// From https://docs.amplify.aws/cli/graphql-transformer/auth#field-level-authorization | |
// The code where this exception is thrown is: https://github.com/aws-amplify/amplify-js/blob/d9aa32837f15f408daba0a0104bb27042b9331da/packages/api-graphql/src/GraphQLAPI.ts#L314 | |
type User @model { | |
id: ID! | |
username: String | |
ssn: String @auth(rules: [{ allow: owner, ownerField: "username" }]) | |
} |
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const chunk = (arr, size) => arr.reduce((a, n) => a[a.length-1].length < size ? [...a.slice(0,-1), [...a[a.length-1], n]] : [...a, [n]], [[]]); | |
const a = [1,2,3,4,5,6,7,8,9] | |
console.log(chunk(a, 2)); // -> [[1, 2], [3, 4], [5, 6], [7, 8], [9]] | |
console.log(chunk(a, 3)); // -> [[1, 2, 3], [4, 5, 6], [7, 8, 9]] | |
console.log(chunk(a, 4)); // -> [[1, 2, 3, 4], [5, 6, 7, 8], [9]] |
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from probability_solution import ( | |
make_power_plant_net, | |
set_probability, | |
get_alarm_prob, | |
get_gauge_prob, | |
get_temperature_prob, | |
get_marginal_temp_prob, | |
get_game_network, | |
calculate_posterior, | |
Gibbs_sampler, |
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import React, { Component, PropTypes } from 'react'; | |
import logo from './logo.svg'; | |
import './App.css'; | |
import { connect } from 'react-redux'; | |
const mapStateToProps = (state) => ({ | |
name: state.name, | |
}); |
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// Use Gists to store code you would like to remember later on | |
console.log(window); // log the "window" object to the console |
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letters = [ l for l in 'abcdefghijklmnopqrstuvwxyz'] | |
sentence = 'Rz xvi jigt nzz v ncjmo ydnovixz vczvy, wpo rz xvi nzz kgziot oczmz ocvo izzyn oj wz yjiz. - Vgvi Opmdib' | |
def decrypt(letter): | |
if letter not in letters: return letter | |
return letters[((letters.index(letter) + 5) % len(letters))] | |
for word in sentence.split(' '): | |
print ''.join([decrypt(letter) for letter in word.lower()]), | |
# we can only see a short distance ahead, but we can see plenty there that needs to be done. - alan turing |
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Array.prototype.zeros = function() { return Array.apply(null, {length: this.length}).map(function(x){ return 0;}); }; |
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/* | |
Just wanted to play around with creating addition and subtraction methods without using + and - | |
@author: David Brear | |
@date: 2015-05-11 | |
*/ | |
var add = function (x, y) { | |
while (y !== 0) { | |
var carry = x & y; | |
x = x ^ y; |
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function sudoku(puzzle) { | |
if (solved(puzzle)) { | |
return puzzle; | |
} | |
var copy = puzzle.slice(0); | |
for(var x=0;x<9; x++) { | |
for(var y=0;y<9;y++) { | |
if (puzzle[x][y] !== 0) continue; | |
var available = get_available(puzzle, x,y); | |
for(var i = 0; i < available.length;i++) { |
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