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@ -1,41 +1,77 @@ |
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/** |
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* 判断是否为空值，undefined、null、'' 都视为空值 |
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* |
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* @param str 不定参数 |
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* @return {boolean} 若为空值，返回true，否则返回false |
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*/ |
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export function isEmpty(...str) { |
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return str.some(i => i === undefined || i === null || i === '') |
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} |
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/** |
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* 当传入空值时，返回默认值 |
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* |
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* @param v 传入值 |
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* @param defaultValue 当传入值为空值(使用{@link #isEmpty}判断)时，返回的值 |
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* @return {string|*} |
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*/ |
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export function emptyOrDefault(v, defaultValue = '') { |
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return isEmpty(v) ? defaultValue : v |
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} |
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/** |
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* 字符串替换全部 |
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* |
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* @param str 原字符串 |
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* @param substr 被替换的字符串 |
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* @param replacement 替换的字符串 |
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* @return {string} |
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*/ |
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export function replaceAll(str, substr, replacement) { |
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if (str == null) return str |
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return str.replace(new RegExp(substr, 'gm'), replacement) |
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} |
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/** |
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* 根据传入值的类型，返回基础起始值 |
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* |
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* @param v |
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* @return {boolean|{}|string|*[]|number|null} |
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*/ |
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export function getInitialValue(v) { |
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if (v === undefined || v === null) v = null |
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else if (typeof v === 'string') v = '' |
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else if (typeof v === 'boolean') v = false |
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else if (typeof v === 'number') v = 0 |
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else if (typeof v === 'object') v = {} |
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else if (Array.isArray(v)) v = [] |
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if (v === undefined || v === null) return null |
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if (typeof v === 'string') return '' |
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if (typeof v === 'boolean') return false |
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if (typeof v === 'number') return 0 |
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if (typeof v === 'object') return {} |
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if (Array.isArray(v)) return [] |
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} |
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//简单重置对象属性
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/** |
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* 简单重置对象属性，遇到对象时会递归重置 |
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* 重置方法使用{@link #getInitialValue} |
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* |
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* @param obj 需要重置的对象 |
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*/ |
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export function resetObj(obj) { |
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if (isEmpty(obj)) return |
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Object.keys(obj).forEach(key => { |
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if (Array.isArray(obj[key])) { |
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obj[key] = [] |
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} |
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else if (typeof obj[key] === 'number') { |
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obj[key] = 0 |
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} |
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else if (typeof obj[key] === 'boolean') { |
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obj[key] = false |
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} |
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else if (obj[key] !== null && typeof obj[key] === 'object') { |
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if (obj[key] !== null && typeof obj[key] === 'object') { |
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resetObj(obj[key]) |
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} |
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else obj[key] = null |
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else obj[key] = getInitialValue(obj[key]) |
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}) |
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} |
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//简单合并对象
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/** |
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* 将source合并到target中 |
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* 仅对target中存在的键进行合并 |
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* 仅当遇到对象值时进行递归 |
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* |
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* @param target |
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* @param source |
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*/ |
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export function mergeObj(target, source) { |
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if (isEmpty(target, source)) return |
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@ -64,6 +100,13 @@ export function mergeObj(target, source) { |
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} |
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} |
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/** |
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* 日期格式化 |
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* |
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* @param fmt {string} 格式，y(+..y)-年、M(+M)-月、d(+d)-天、H(+H)-时、m(+m)-分、s(+s)-秒、S-毫秒 |
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* @param date {Date} 可选，被格式化的日期 |
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* @return {string} 格式化后的日期字符串 |
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*/ |
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export function timeFormat(fmt, date = new Date()) { |
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if (isEmpty(fmt)) fmt = 'yyyy-MM-dd HH:mm:ss' |
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@ -73,7 +116,6 @@ export function timeFormat(fmt, date = new Date()) { |
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"H+": date.getHours(), //小时
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"m+": date.getMinutes(), //分
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"s+": date.getSeconds(), //秒
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"q+": Math.floor((date.getMonth() + 3) / 3), //季度
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"S": date.getMilliseconds() //毫秒
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} |
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@ -85,7 +127,7 @@ export function timeFormat(fmt, date = new Date()) { |
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for (const k in o) { |
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if (new RegExp(`(${k})`).test(fmt)) { |
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const firstMatch = RegExp.$1 |
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const replace = firstMatch.length === 1 ? o[k] : ("00" + o[k]).substring(("" + o[k]).length) |
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const replace = firstMatch.length === 1 ? o[k] + "" : ("00" + o[k]).substring(("" + o[k]).length) |
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fmt = fmt.replace(firstMatch, [...replace].join('')) |
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} |
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} |
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@ -93,6 +135,14 @@ export function timeFormat(fmt, date = new Date()) { |
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return fmt |
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} |
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/** |
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* 防抖 |
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* |
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* @param func {function} 原函数 |
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* @param wait {number} 防抖间隔，单位毫秒 |
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* @param immediate {boolean} 是否立即执行一次 |
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* @return {function} 经过防抖包装后的函数 |
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*/ |
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export function debounce(func, wait = 100, immediate = false) { |
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let timeout, args, context, timestamp, result |
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@ -183,15 +233,6 @@ export function waitUntilSuccess(success, callback, interval = 1000, maxTryTime |
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}) |
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} |
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//删除所有url参数
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export function delAllUrlParam() { |
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let paramStartIndex = location.href.indexOf('?') |
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if (paramStartIndex > -1) { |
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const href = location.href.substring(0, paramStartIndex) |
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history.replaceState(null, null, [...href].join('')) |
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} |
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} |
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//将传入对象的所有函数的this绑定为其自身
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export function bindThis(obj, root = obj) { |
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if (!obj || typeof obj !== 'object') return |
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toesbieya
6 years ago