Live programming @ University of Washington
Published
Edited
Aug 30, 2021
md`# Local storage test`
md`It's probably best to use the more official https://observablehq.com/@mbostock/safe-local-storage !`
a = button({'value': 'put "foo" in localStorage'})
{
a.onclick = () => localStorage.setItem('value', 'foo')
b.onclick = () => localStorage.setItem('value', undefined)
}
b = button({value: 'clear localStorage'})
md`What's in localStorage?`
localStorage.getItem('value')
manifest = ({
"name": "localStorage test",
"short_name": "lS test",
"description": "A localStorage test.",
"display": "standalone",
"scope": "/",
"icons": []
})
function createWorker(s, cb) {
const worker = new window.Worker(
window.URL.createObjectURL(
new Blob(
[`
self.onmessage = function(e){
let result = eval("("+e.data.script+"())")
self.postMessage(result);
}`
],
{
type: "text/javascript"
}
)
)
);
if (typeof cb == "function") {
cb(worker);
}
}
caches
manifest_url = Files.url(manifest_json)
btoa(manifest_json)
document.head.children[3].outerHTML
window.foo = document.head.appendChild(html`<link rel="manifest" href="${'data:application/json;base64;' + btoa(JSON.stringify(manifest))}">`)
manifest_json = new File([JSON.stringify(manifest)], 'manifest.json')
import {button} from '@jashkenas/inputs'
performance.getEntriesByType("resource")
performance.getEntriesByType("resource").map(e => e.name)
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