76 lines
1.7 KiB
JavaScript
76 lines
1.7 KiB
JavaScript
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/**
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* 格式化日期
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* @param {Date|string|number} date
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* @param {string} format
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* @returns {string}
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*/
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export function formatDate(date, format = 'YYYY-MM-DD HH:mm:ss') {
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const d = new Date(date)
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const year = d.getFullYear()
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const month = String(d.getMonth() + 1).padStart(2, '0')
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const day = String(d.getDate()).padStart(2, '0')
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const hours = String(d.getHours()).padStart(2, '0')
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const minutes = String(d.getMinutes()).padStart(2, '0')
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const seconds = String(d.getSeconds()).padStart(2, '0')
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return format
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.replace('YYYY', year)
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.replace('MM', month)
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.replace('DD', day)
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.replace('HH', hours)
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.replace('mm', minutes)
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.replace('ss', seconds)
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}
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/**
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* 防抖函数
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* @param {Function} fn
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* @param {number} delay
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* @returns {Function}
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*/
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export function debounce(fn, delay = 300) {
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let timer = null
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return function(...args) {
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if (timer) clearTimeout(timer)
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timer = setTimeout(() => {
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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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* 节流函数
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* @param {Function} fn
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* @param {number} delay
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* @returns {Function}
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*/
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export function throttle(fn, delay = 300) {
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let last = 0
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return function(...args) {
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const now = Date.now()
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if (now - last >= delay) {
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last = now
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fn.apply(this, args)
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}
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}
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}
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/**
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* 深拷贝
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* @param {any} obj
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* @returns {any}
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*/
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export function deepClone(obj) {
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if (obj === null || typeof obj !== 'object') return obj
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if (obj instanceof Date) return new Date(obj)
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if (obj instanceof Array) return obj.map(item => deepClone(item))
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const clonedObj = {}
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for (const key in obj) {
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if (obj.hasOwnProperty(key)) {
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clonedObj[key] = deepClone(obj[key])
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}
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}
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return clonedObj
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}
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