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samduttonsamdutton
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Added loadevents
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7 files changed

+212
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‎.eslintrc

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},
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"env": {
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"es6": true,
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"browser": true,
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"node": true
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"browser": true
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},
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"extends": "eslint:recommended",
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"globals": {

‎loadevents/index.html

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<!DOCTYPE html>
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<!--
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Copyright 2017 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<html lang="en">
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<head>
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<!-- Global site tag (gtag.js) - Google Analytics -->
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<script async src="https://www.googletagmanager.com/gtag/js?id=UA-33848682-1"></script>
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<script>
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window.dataLayer = window.dataLayer || [];
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function gtag() {
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window.dataLayer.push(arguments);
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}
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gtag('js', new Date());
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gtag('config', 'UA-33848682-1');
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</script>
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<script src="js/defer.js" type="module" defer></script>
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<script src="js/async.js" type="module" async></script>
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<script src="js/head.js" type="module"></script>
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<meta charset="utf-8">
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<meta name="description" content="Simplest possible examples of HTML, CSS and JavaScript.">
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<meta name="author" content="//samdutton.com">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta itemprop="name" content="simpl.info: simplest possible examples of HTML, CSS and JavaScript">
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<meta itemprop="image" content="/images/icons/icon192.png">
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<meta id="theme-color" name="theme-color" content="#fff">
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<link rel="icon" href="/images/icons/icon192.png">
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<base target="_blank">
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<title>Load events</title>
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<link rel="stylesheet" href="../css/main.css">
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</head>
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<body>
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<div id="container">
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<h1><a href="../index.html" title="simpl.info home page">simpl.info</a> load events</h1>
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<p id="data"></p>
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<img src="../images/small.jpg">
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<img src="../images/medium.jpg">
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<img src="../images/large.jpg">
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<a href="https://github.com/samdutton/simpl/blob/gh-pages/video/events" title="View source for this page on GitHub" id="viewSource">View source on GitHub</a>
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</div>
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<script src="../js/lib/ga.js"></script>
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<script src="js/end.js" type="module"></script>
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</body>
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</html>

‎loadevents/js/async.js

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/*
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Copyright 2017 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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import {log} from './log.js';
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log('async script executed');

‎loadevents/js/defer.js

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/*
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Copyright 2017 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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import {log} from './log.js';
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log('defer script executed');

‎loadevents/js/end.js

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/*
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Copyright 2017 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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import {log} from './log.js';
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log('script at end of page executed');

‎loadevents/js/head.js

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/*
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Copyright 2017 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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import {log} from './log.js';
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log('script in head of page began execution');
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document.addEventListener('load', (event) => {
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console.log(event.target.constructor.name);
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if (event.target.src) {
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log(event.target.constructor.name, event.target.src);
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}
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}, true);
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window.onload = () => {
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log('window load event');
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};
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document.addEventListener('loaded', function() {
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log('window loaded event');
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});
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document.addEventListener('DOMContentLoaded', function() {
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log('window DOMContentLoaded event');
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});
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‎loadevents/js/log.js

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/*
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Copyright 2017 Google Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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const data = document.querySelector('p#data');
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const start = Date.now(); // for browsers that don't support window.performance
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export function log(...args) {
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const message = args.join('<br>');
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let time;
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if (window.performance) {
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time = (window.performance.now() / 1000).toFixed(3);
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} else {
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time = ((Date.now() - start) / 1000).toFixed(3);
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}
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data.innerHTML += `<span class = "time">${time}</span> s:<br>${message}<br><br>`;
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}
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