throttle.js

const throttle = (func, time = 17, options = {

    leading: true,
    trailing: false,
    context: null
}) => {
    let previous = new Date(0).getTime()
    let timer;
    const _throttle = function (...args) {
        let now = new Date().getTime();

        if (!options.leading) {
            if (timer) return
            timer = setTimeout(() => {
                timer = null
                func.apply(options.context, args)
            }, time)
        } else if (now - previous > time) {
            func.apply(options.context, args)
            previous = now
        } else if (options.trailing) {
            clearTimeout(timer)
            timer = setTimeout(() => {
                func.apply(options.context, args)
            }, time)
        }
    };

    _throttle.cancel = () => {
        previous = 0;
        clearTimeout(timer);
        timer = null
    };
    return _throttle
};