benmccormick

async function showMessageFromServer() {
    let data = await fetch('/get/data.json');

    let message = data.json().message;

    alert(message);
}

benmccormick

//Promises take a function that receives callbacks that can be run when an operation completes
let delay5Seconds = new Promise(function(resolve, reject) {
    setTimeout(resolve, 5000);
});


//You can respond to the results of a successfully resolved Promise using the `then` function
delay5Seconds.then(function() {
    console.log('This gets logged 5 seconds later')
});

benmccormick

//fetch makes an HTTP request and returns a promise that resolves 
//when the file is loaded
let p1 = fetch('/data/file1.json');
let p2 = fetch('/data/file2.json');
let p3 = fetch('/data/file3.json');

Promise.all([p1,p2,p3]).then(function(values) {
    //values contains the responses from each of the promises
    let [response1, response2, response3] = values;

benmccormick

//Backbone.Model's save function is a function that takes callbacks
//for successful or failed saves.  

//Normal usage

let model = new Backbone.Model();

model.save(null, {
    success: function() {
        alert('saved');

benmccormick

try {
    fetch('/some/data').then(function() {
        throw 'error';
    })
} catch(e) {
    //this code won't be executed
    console.log('Exception Caught') 
}

benmccormick

#!/bin/bash
# This is a script to set up a Linux Mint environment for Tim's development this summer.  It is by no means complete, but is just meant to get started with some of the basics for java development and the courage project.

#set your username here
USER=ben

#update available packages
apt-get update
#installing postgres
apt-get -y install postgresql

benmccormick

/* Small Knockout Extension to allow for canceling/confirming
 * changes to the view model  Originally from:
 *  http://www.knockmeout.net/2011/03/guard-your-model-accept-or-cancel-edits.html
 */

//wrapper to an observable that requires accept/cancel
ko.protectedObservable = function(initialValue) {
    //private variables
    var _actualValue = ko.observable(initialValue),
        _tempValue = initialValue;

benmccormick

/* Small Knockout Extension to allow for canceling/confirming
 * changes to the view model. Defaults to the changed option.  Based on code sample from Ryan Niemeier
 *  http://www.knockmeout.net/2011/03/guard-your-model-accept-or-cancel-edits.html
 *
 * Please note: You should not use this unless you are 
 * explicitly confirming or resetting the values in every scenario before you
 * reference them again.  An unwanted revert may occur if you make changes without confirming and then cancel at a later point.
 */

 //wrapper to an observable that requires accept/cancel

benmccormick

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class Palindrome {

  public static void main(String[] args) throws Exception

benmccormick

fs = require('fs')

writevalue = (i, val)->
  output += "Case #"+i+": "+val+"\n"

# is a palindrome (expects a string)
isPalindrome = (num) ->
  reversed = (num).split("").reverse().join("")
  num is reversed