js封装节流函数防抖函数

js 中封装节流函数

//节流函数
export function throttle(fn, delay = 5000) {
    let timer
    return function() {
        let th = this,
            args = arguments;
        if (!timer) {
            fn.call(th, args);
            timer = setTimeout(function() {
                timer = null;
            }, delay)
        }
    }
}
//防抖
export function debounce(fn, delay = 5000) {
    let timer
    return function() {
        let th = this,
            args = arguments;
        if (timer) {
            clearTimeout(timer)
        }
        timer = setTimeout(function() {
            fn.apply(th, args);
            timer = null
        }, delay)
    }
}

使用

methods：{
  testWechatSend: throttle(function () {
            console.log('触发')
    }, 1000)
}