Debouncer utils

Operation debouncer utility

Features

• Support for return values
• Support for promises
• Support for cancelation
• Flexible API
• Full typescript support

Usage

Check out the API docs for more detailed information.

Return values

The debounce return value can be reached by waiting the promise.

const result = await debounce.exec(arg1, arg2);
if (result.type === 'ok') {
	handleValue(result.value);
}

Promises

Async debounce functions are also supported.

const debounce = new Debouncer(async () => 'success', 1_000);

// after 1 second ...
const result = await debounce.exec();

assert.strictEqual(result, { ok: 'ok', value: 'success' });

Also supports all the async utilities.

const debounce = new Debouncer(async () => 'first', 1_500);

// after 1.5 seconds ...
const values = await Promise.all(debounce.exec(), Promise.resolve('second'));

assert.strictEqual(values, [{ type: 'ok', value: 'first' }, 'second']);

Cancelation

Cancelation can be triggered and handled safely.

const value = await debounce.exec(arg1, arg2);

// cancelExecution() ...

assert.strictEqual(result, { ok: 'abort', value: new DebounceAbortError() });

function cancelExecution() {
	// Abort pending operation
	debounce.abort();
}

Debounce operation control

In case the return value is already available, its possible to skip the debounce execution.

async function func() {
	const value = await debounce.exec(arg1, arg2);
}

debounce.ready(value);

Instead of waiting the delay timeout, run the debounce immediately with flush.

async function func() {
	const value = await debounce.exec(arg1, arg2);
}

function resolveImmediate() {
	debounce.flush();
}

Development

Clone the git repo and install with pnpm.

Test

To run the tests, use the package script test or test --coverage for code coverage.

See more options in the jest CLI options

Build

To build js files, run build:js and build:type for typescript declaration files.

For a full build (.d.ts, .js), run the build script.

License

MIT License