Debounce

code.js

const assert = require('assert');

// Helper to debounce function calls.

module.exports = (time, fn) => {
    assert.equal(typeof time, 'number');
    assert.equal(typeof fn, 'function');
    let debounce = false;
    return function() {
        if (debounce) {
            return;
        }
        debounce = true;
        setTimeout(() => {
            debounce = false;
        }, time);
        fn.call(this);
    };
};