Skip to content

Instantly share code, notes, and snippets.

Justin Fagnani justinfagnani

Block or report user

Report or block justinfagnani

Hide content and notifications from this user.

Learn more about blocking users

Contact Support about this user’s behavior.

Learn more about reporting abuse

Report abuse
View GitHub Profile
View gist:6675416
import 'dart:async';
import 'package:postgresql/postgresql.dart';
void main() {
var username = "TheRightMan";
var password = "WithTheRightSecret";
var DBname = "AtTheRightPlace";
var uri = 'postgres://$username:$password@localhost:5432/$DBname';
justinfagnani / gist:8e0b18cf4604f039c859
Created Jul 17, 2014
code_transformers / analyzer
View gist:8e0b18cf4604f039c859
class InterfaceTransformer extends Transformer with ResolverTransformer {
final Resolvers resolvers;
Future<bool> isPrimary(AssetId id) => new Future.value(id.extension == '.dart');
Future<bool> shouldApplyResolver(Asset asset) {
return asset.readAsString().then((contents) {
var cu = parseCompilationUnit(contents, suppressErrors: true);
View quiver_retry_2.dart
/// Returns a [Duration] if another attempt needs to be made after
/// waiting for the returned [Duration]. Returns the error object
/// that instructs the retry mechanism to stop trying and report error
/// immediately.
typedef dynamic OnErrorFunc(Object err, int retry, Duration elapsed);
/// `onError` returns either [Duration] or an error object. If [Duration]
/// is returned, the `attempt` function will be retried after waiting
/// for the returned duration, otherwise the retry mechanism gives up
/// and evaluates the [Future] with the the error object.
Future start(
View quick-alert.html
<link rel="import" href="bower_components/polymer/polymer.html">
<dom-module id="quick-alert">
:host {
display: block;
position: fixed;
top: 0;
left: 0;
right: 0;
justinfagnani / gist:6aec137ed97cfa3db002
Last active Aug 29, 2015
Dependency Resolution with Events
View gist:6aec137ed97cfa3db002
is: 'x-foo',
ready() {
// provides a FooService to descendents
this.provideInstance('foo-service', new FooService());
attached() {
// requests a BarService from an ancestor, re-requests if moved
View gist-server.json
"polymer": "",
"webcomponentsjs": ""
View gist-server.json
"font-roboto": "",
"iron-flex-layout": "",
"paper-material": "",
"paper-styles": "",
"polymer": "",
"webcomponentsjs": ""
View designer.html
<link rel="import" href="../polymer/polymer.html">
<polymer-element name="my-element">
:host {
position: absolute;
width: 100%;
height: 100%;
View index.html
<!doctype html>
<script src="shadow-root.js"></script>
<div slot="main">
I'm some projected content.
justinfagnani / custom-element-conformance.js
Created Oct 8, 2017
Web Components Conformance Tests
View custom-element-conformance.js
const NativeHTMLElement = window.HTMLElement;
const documentWrite = document.write;
const documentOpen =;
window.HTMLElement = class extends NativeHTMLElement {
constructor(...args) {
console.assert(args.length === 0);
You can’t perform that action at this time.