function throttle(fn, delay) {
let last = 0 // 上次触发时间
return function (...args) {
const now = Date.now()
if (now - last > delay) {
last = now
fn.apply(this, args)
}
}
}
// 测试
function task() {
console.log('run task')
}
const throttleTask = throttle(task, 1000)
window.addEventListener('scroll', throttleTask)
标签：function,task,last,节流,throttleTask,delay,now From： https://www.cnblogs.com/qingshuihongye/p/16721466.html