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@baranovxyz
baranovxyz / styles.css
Created May 24, 2020 19:11
.Note-Title {
font-weight: 700;
margin-top: 0.5em;
}
.Note-Text {
font-size: 0.8em;
}
@baranovxyz
baranovxyz / render-with-filter.js
Created May 24, 2020 19:04
function render() {
const filter = filterEl.value.trim();
const filteredNotes = notes.filter(note => {
if (!filter) return true;
return note.title.includes(filter) || note.text.includes(filter);
});
notesEl.innerHTML = filteredNotes.map(Note).join("");
@baranovxyz
baranovxyz / fetch.js
Last active July 19, 2020 12:52
let notes = [];
function render() { /**/ };
fetch("src/notes.json")
.then(response => response.json())
.then(_notes => (notes = _notes))
.then(render)
.catch(e => console.error(e));
@baranovxyz
baranovxyz / Note.js
Created May 24, 2020 18:31
function Note(note) {
const { title, text } = note;
return `
<div class='Note'>
<div class='Note-Title'>
${title}
</div>
<div class='Note-Text'>
${text}
@baranovxyz
baranovxyz / render.js
Created May 24, 2020 18:25
function render() {
notesEl.innerHTML = notes.map(Note).join("");
}
@baranovxyz
baranovxyz / index.html
Last active July 19, 2020 12:52
<!DOCTYPE html>
<html>
<head>
<title>Notes</title>
<meta charset="UTF-8" />
<link rel="stylesheet" type="text/css" href="src/styles.css"></link>
</head>
<body>
<input id="filter">
<div id="notes"></div>
@baranovxyz
baranovxyz / insert-column.js
Last active May 24, 2020 07:02
const BSON = require('bson');
const DOC_LIMIT = 16777216;
async function insert(column) {
// identificators for our column
const ids = [column._id];
const { _id, type } = column;
// lets calculate column size with empty array
const docMinSize = Math.max(
@baranovxyz
baranovxyz / calculate-bson-size.js
Last active May 24, 2020 07:02
function calculateColumnSize(column) {
let size = 0;
size += 4; // 4 bytes for int32 for a document size
// `_id` key-value where _id value is a string
// 10 bytes + ? = 1(value type) + 3(`_id` key length) + 1(key terminator) + 4(int32 string length) + ?(value length) + 1(string value terminator)
size += 10 + column._id.length;
// `type` key value with 'string' as value
// 17 bytes = 1(value type) + 4(`type` key length) + 1(key terminator) + 4(int32 string length) + 6(`string` length) + 1(string value terminator)
size += 17;
// `values` array with string or null values
@baranovxyz
baranovxyz / bson-null.js
Created May 14, 2020 18:49
let doc = { values: [null] };
console.log(BSON.serialize(doc));
// <Buffer 15 00 00 00 04 76 61 6c 75 65 73 00 08 00 00 00 0a 30 00 00 00>
@baranovxyz
baranovxyz / bson-array.js
Created May 14, 2020 18:43
let doc = { values: ['first'] };
console.log(BSON.serialize(doc));
// <Buffer 1f 00 00 00 04 76 61 6c 75 65 73 00 12 00 00 00 02 30 00 06 00 00 00 66 69 72 73 74 00 00 00>