throttle#

import { throttle } from 'funtool';

// 基本异步节流
const throttledFetch = throttle(async (url) => {
  const res = await fetch(url);
  return res.json();
}, 1000);

// 使用控制方法
const fn = throttle(() => console.log('执行'), 500);
fn();
fn.cancel(); // 取消待执行
fn.flush(); // 立即执行
fn.pending(); // 检查是否有待执行

function throttle<T extends (...args: any[]) => any, This = any>(
  fn: T,
  interval?: number
): Throttled<T, This>

interface Throttled<T extends (...args: any[]) => any, This = any> {
  (this: This, ...args: Parameters<T>): Promise<ReturnType<T> | undefined>;
  cancel: () => void;
  flush: () => Promise<ReturnType<T> | undefined>;
  pending: () => boolean;
}