intent.js

function Intent() {
	const self = this;
	let timer;

	this.exec = function (callback, duration, ...args) {
		self.clear();
		timer = setTimeout(callback.bind(this, args), duration || 500);
	};

	this.clear = function() {
		clearTimeout(timer);
	};

}
export default Intent;

// usage
import Intent from 'intent';
const instance = new Intent();
document.querySelector('.element').addEventListener('input', () => {
	instance.exec(callback.bind(e.target));
}, false);

const instances = [];

function Intent() {
	const self = this;
	let timer;

	this.exec = function (callback, duration, ...args) {
		self.clear();
		timer = setTimeout(callback.bind(this, args), duration || 1000);
	};

	this.clear = function () {
		clearTimeout(timer);
	};

}

function exec(id) {
  if (!instances[id]) {
    instances[id] = new Intent();
  }
  
  return instances[id];
}

function clear(id) {
  if (instances[id]) {
    instances[id].clear();
    delete instances[id];
  }
}

export default {exec, clear};