console 命令行工具 X clear

console

const dom = document.getElementById('myInput');
// let timer;
// dom.addEventListener('keyup', () => {
//     if (timer) {
//         clearTimeout(timer);
//     }
//     timer = setTimeout(() => {
//         console.log(dom.value)
//         timer = null;
//     }, 500)
// })


function debounce(fn, delay = 500) {
    let timer = null;
    return function() {
        if (timer) {
            clearTimeout(timer);
        }
        timer = setTimeout(() => {
            fn.call(this, arguments);
            timer = null;
        }, delay)
    }
}
dom.addEventListener('keyup', debounce(function(count) {
    console.log(dom.value)
}, 500))

<input id="myInput" />