A Javascript function to Debounce other functions

debounce.js

// Debounce function
let debounce = (func, delay) => {
    let timeout;

    return (...args) => {
		// If this function is called again, and there's a timeout defined, clear it;
        if (timeout) clearTimeout(timeout);

		// Set a timeout to call the original function, after the `delay`
        timeout = setTimeout(() => {
            func(...args);
        }, delay);
    };
};

// Test
let log = (...args) => {
    console.log(...args);
}

let debouncedLog = debounce(log, 3000);

debouncedLog('I won\'t run');

setTimeout(() => {
    debouncedLog('I will run! oh wait! :(');    
}, 2000);

debouncedLog('I won\'t run either');

setTimeout(() => {
    debouncedLog('I should run, but won\'t');
    debouncedLog('Yaay!', 'I will defo. run');
}, 4000);