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107 lines
2.5 KiB
107 lines
2.5 KiB
import Taro from '@tarojs/taro'
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export const sleep = async (longTime) => new Promise((resolve) => setTimeout(resolve, longTime))
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/**
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* 函数防抖 (立即执行版)
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* @param {function} fn 函数
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* @param {number} delay 延迟执行毫秒数
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*/
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export const debounceStart = (fn, delay = 2000) => debounce(fn,delay,true);
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/**
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* 函数防抖 (非立即执行版)
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* @param {function} fn 函数
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* @param {number} delay 延迟执行毫秒数
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*/
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export const debounceEnd = (fn, delay = 2000) => debounce(fn,delay,false);
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/**
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* 函数防抖 (完全版)
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* @param {function} fn 函数
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* @param {number} delay 延迟执行毫秒数
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* @param {boolean} immediate true 表立即执行，false 表非立即执行
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*/
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export const debounce = (fn, delay, immediate = false) => {
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let timer = null;
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let status = true;
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if (!immediate) return function () {
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let args = arguments;
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if (timer) clearTimeout(timer);
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timer = setTimeout(() => fn.apply(this, args), delay);
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};
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else return function () {
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clearTimeout(timer);
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if (status) {
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status = false;
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fn.call(this, arguments);
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}
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timer = setTimeout(() => status = true, delay);
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};
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};
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/**
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* 函数节流 延迟执行
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* @param {function} fn 函数
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* @param {number} delay 延迟执行毫秒数
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*/
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export const throttle = (fn, delay = 2000) => {
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let timer = null;
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return function () {
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let args = arguments;
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if (!timer) {
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timer = setTimeout(() => {
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timer = null;
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fn.apply(this, args);
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}, delay);
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}
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};
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};
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//防止多次重复点击 （函数节流）
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export const throttleClick = (fn, gapTime) => {
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if (gapTime == null || gapTime == undefined) {
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gapTime = 1500;
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}
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let _lastTime = null;
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return function () {
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let _nowTime = + new Date();
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if (_nowTime - _lastTime > gapTime || !_lastTime) {
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fn();
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_lastTime = _nowTime;
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}
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};
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};
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/**
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* 显示一个轻提示
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* @param {string | object} msg 显示内容
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*/
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export const toast = msg => {
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Taro.showToast({
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title: typeof msg === 'object' ? JSON.stringify(msg) : msg,
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icon: 'none'
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})
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}
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/**
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* 执行定时时间后的异步任务
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* @param {number} time 毫秒
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*/
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export const asyncTimeOut = time => {
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let resolveFunc
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let rejectFunc
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const pro = new Promise((resolve, reject) => {
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resolveFunc = resolve
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rejectFunc = reject
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})
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const timer = setTimeout(() => resolveFunc({ code: 200, message: '倒计时结束', type: 'timeout' }), time)
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pro.clear = () => {
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clearTimeout(timer)
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rejectFunc({ code: 500, message: '清除倒计时' })
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}
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return pro
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}
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