SOURCE

function throttle(fn, delay) {
  let last = 0 // 上次触发时间
  return (...args) => {
      console.log(args)
    //   console.log(this)
    const now = Date.now()
    if (now - last > delay) {
      last = now
      fn.apply(this, args)
    }
  }
}

// 测试
function task(name) {
    console.log(name)
  console.log('run task')
}
const throttleTask = throttle(
    task
, 1000)

<button onclick="throttleTask(999)">按钮</button>