| // Copyright 2020 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| const KB = 1024; |
| const MB = KB * KB; |
| const GB = MB * KB; |
| const kMillis2Seconds = 1 / 1000; |
| |
| function formatBytes(bytes) { |
| const units = [' B', ' KB', ' MB', ' GB']; |
| const divisor = 1024; |
| let index = 0; |
| while (index < units.length && bytes >= divisor) { |
| index++; |
| bytes /= divisor; |
| } |
| return bytes.toFixed(2) + units[index]; |
| } |
| |
| function formatSeconds(millis) { |
| return (millis * kMillis2Seconds).toFixed(2) + 's'; |
| } |
| |
| function defineCustomElement(name, generator) { |
| let htmlTemplatePath = name + '-template.html'; |
| fetch(htmlTemplatePath) |
| .then(stream => stream.text()) |
| .then(templateText => customElements.define(name, generator(templateText))); |
| } |