Konstantin Grushetsky grushetsky
grushetsky
/ Infrastructure.js
Last active
March 10, 2019 23:59
— forked from sebmarkbage/Infrastructure.js
Poor man's algebraic effects in JavaScript
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| let cache = new Map(); | |
| let pending = new Map(); | |
| function fetchTextSync(url) { | |
| if (cache.has(url)) { | |
| return cache.get(url); | |
| } | |
| if (pending.has(url)) { | |
| throw pending.get(url); | |
| } |