HowProgrammingWorks - JavaScript and Node.js Programming
Ownership and Resource Lifetime
Pure JavaScript examples of deterministic resource lifetime, ownership, move, borrow, lease, shared ownership, weak references, and RAII-inspired abstractions built on modern JavaScript.
const timers = require('node:timers/promises');
class AbortScope {
#controller = new AbortController();
signal = this.#controller.signal;
[Symbol.dispose]() {
this.#controller.abort(new Error('Scope disposed'));
}
}
const main = async () => {
let operation;
{
using scope = new AbortScope();
operation = timers.setTimeout(1000, 'done', {
signal: scope.signal,
});
}
try {
await operation;
} catch (error) {
console.log(error.name);
}
};
main();
Sources: https://github.com/HowProgrammingWorks/Ownership
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