app/lib/content/reading-time.mjs

Functions

Imports

It imports no other module of this repo. Imported by app/lib/blog-view.ts, app/lib/content/pipeline.mjs.

Source

1// Imports nothing: the editor's chunk runs in the browser, and pipeline.mjs would bring shiki with it.
2
3// Changing this restates every published post's reading time on the next regeneration.
4const WORDS_PER_MINUTE = 200;
5
6/**
7 * Counts markdown syntax as words on purpose: it is the count published reading times were built with.
8 *
9 * @param {string} markdownText
10 * @returns {number}
11 */
12export function countWords(markdownText) {
13  return markdownText.trim().split(/\s+/).filter(Boolean).length;
14}
15
16/**
17 * @param {number} words
18 * @returns {number}
19 */
20function minutesForWords(words) {
21  return Math.max(1, Math.round(words / WORDS_PER_MINUTE));
22}
23
24/**
25 * @param {string} markdownText
26 * @returns {number}
27 */
28export function readingTimeMinutes(markdownText) {
29  return minutesForWords(countWords(markdownText));
30}