throttle.js

/**
 *
 * @param func
 * @param duration
 * @returns {function(...[*]=): void}
 */
const throttle = function (func, duration) {
    let shouldWait = false
    return function (...args) {
        if (!shouldWait) {
            func.apply(this, args)
            shouldWait = true
            setTimeout(() => {
                shouldWait = false
            }, duration)
        }
    }
}