/**
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* 表格时间格式化
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*/
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export function formatDate(cellValue) {
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if (cellValue == null || cellValue == "") return "";
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var date = new Date(cellValue);
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var year = date.getFullYear();
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var month =
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date.getMonth() + 1 < 10
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? "0" + (date.getMonth() + 1)
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: date.getMonth() + 1;
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var day = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
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var hours = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
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var minutes =
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date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
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var seconds =
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date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
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return (
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year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds
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);
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}
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/**
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* @param {number} time
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* @param {string} option
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* @returns {string}
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*/
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export function formatTime(time, option) {
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if (("" + time).length === 10) {
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time = parseInt(time) * 1000;
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} else {
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time = +time;
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}
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const d = new Date(time);
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const now = Date.now();
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const diff = (now - d) / 1000;
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if (diff < 30) {
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return "刚刚";
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} else if (diff < 3600) {
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// less 1 hour
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return Math.ceil(diff / 60) + "分钟前";
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} else if (diff < 3600 * 24) {
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return Math.ceil(diff / 3600) + "小时前";
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} else if (diff < 3600 * 24 * 2) {
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return "1天前";
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}
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if (option) {
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return parseTime(time, option);
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} else {
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return (
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d.getMonth() +
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1 +
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"月" +
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d.getDate() +
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"日" +
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d.getHours() +
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"时" +
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d.getMinutes() +
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"分"
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);
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}
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}
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/**
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* @param {string} url
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* @returns {Object}
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*/
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export function getQueryObject(url) {
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url = url == null ? window.location.href : url;
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const search = url.substring(url.lastIndexOf("?") + 1);
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const obj = {};
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const reg = /([^?&=]+)=([^?&=]*)/g;
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search.replace(reg, (rs, $1, $2) => {
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const name = decodeURIComponent($1);
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let val = decodeURIComponent($2);
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val = String(val);
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obj[name] = val;
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return rs;
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});
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return obj;
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}
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/**
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* @param {string} input value
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* @returns {number} output value
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*/
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export function byteLength(str) {
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// returns the byte length of an utf8 string
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let s = str.length;
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for (var i = str.length - 1; i >= 0; i--) {
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const code = str.charCodeAt(i);
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if (code > 0x7f && code <= 0x7ff) s++;
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else if (code > 0x7ff && code <= 0xffff) s += 2;
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if (code >= 0xdc00 && code <= 0xdfff) i--;
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}
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return s;
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}
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/**
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* @param {Array} actual
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* @returns {Array}
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*/
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export function cleanArray(actual) {
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const newArray = [];
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for (let i = 0; i < actual.length; i++) {
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if (actual[i]) {
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newArray.push(actual[i]);
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}
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}
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return newArray;
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}
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/**
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* @param {Object} json
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* @returns {Array}
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*/
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export function param(json) {
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if (!json) return "";
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return cleanArray(
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Object.keys(json).map(key => {
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if (json[key] === undefined) return "";
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return encodeURIComponent(key) + "=" + encodeURIComponent(json[key]);
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})
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).join("&");
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}
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/**
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* @param {string} url
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* @returns {Object}
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*/
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export function param2Obj(url) {
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const search = url.split("?")[1];
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if (!search) {
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return {};
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}
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return JSON.parse(
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'{"' +
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decodeURIComponent(search)
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.replace(/"/g, '\\"')
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.replace(/&/g, '","')
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.replace(/=/g, '":"')
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.replace(/\+/g, " ") +
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'"}'
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);
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}
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/**
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* @param {string} val
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* @returns {string}
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*/
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export function html2Text(val) {
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const div = document.createElement("div");
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div.innerHTML = val;
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return div.textContent || div.innerText;
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}
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/**
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* Merges two objects, giving the last one precedence
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* @param {Object} target
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* @param {(Object|Array)} source
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* @returns {Object}
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*/
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export function objectMerge(target, source) {
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if (typeof target !== "object") {
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target = {};
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}
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if (Array.isArray(source)) {
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return source.slice();
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}
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Object.keys(source).forEach(property => {
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const sourceProperty = source[property];
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if (typeof sourceProperty === "object") {
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target[property] = objectMerge(target[property], sourceProperty);
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} else {
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target[property] = sourceProperty;
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}
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});
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return target;
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}
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/**
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* @param {HTMLElement} element
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* @param {string} className
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*/
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export function toggleClass(element, className) {
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if (!element || !className) {
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return;
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}
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let classString = element.className;
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const nameIndex = classString.indexOf(className);
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if (nameIndex === -1) {
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classString += "" + className;
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} else {
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classString =
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classString.substr(0, nameIndex) +
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classString.substr(nameIndex + className.length);
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}
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element.className = classString;
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}
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/**
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* @param {string} type
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* @returns {Date}
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*/
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export function getTime(type) {
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if (type === "start") {
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return new Date().getTime() - 3600 * 1000 * 24 * 90;
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} else {
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return new Date(new Date().toDateString());
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}
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}
|
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/**
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* @param {Function} func
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* @param {number} wait
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* @param {boolean} immediate
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* @return {*}
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*/
|
export function debounce(func, wait, immediate) {
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let timeout, args, context, timestamp, result;
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const later = function() {
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// 据上一次触发时间间隔
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const last = +new Date() - timestamp;
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// 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
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if (last < wait && last > 0) {
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timeout = setTimeout(later, wait - last);
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} else {
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timeout = null;
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// 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
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if (!immediate) {
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result = func.apply(context, args);
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if (!timeout) context = args = null;
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}
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}
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};
|
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return function(...args) {
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context = this;
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timestamp = +new Date();
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const callNow = immediate && !timeout;
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// 如果延时不存在，重新设定延时
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if (!timeout) timeout = setTimeout(later, wait);
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if (callNow) {
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result = func.apply(context, args);
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context = args = null;
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}
|
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return result;
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};
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}
|
|
/**
|
* This is just a simple version of deep copy
|
* Has a lot of edge cases bug
|
* If you want to use a perfect deep copy, use lodash's _.cloneDeep
|
* @param {Object} source
|
* @returns {Object}
|
*/
|
export function deepClone(source) {
|
if (!source && typeof source !== "object") {
|
throw new Error("error arguments", "deepClone");
|
}
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const targetObj = source.constructor === Array ? [] : {};
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Object.keys(source).forEach(keys => {
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if (source[keys] && typeof source[keys] === "object") {
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targetObj[keys] = deepClone(source[keys]);
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} else {
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targetObj[keys] = source[keys];
|
}
|
});
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return targetObj;
|
}
|
|
/**
|
* @param {Array} arr
|
* @returns {Array}
|
*/
|
export function uniqueArr(arr) {
|
return Array.from(new Set(arr));
|
}
|
|
/**
|
* @returns {string}
|
*/
|
export function createUniqueString() {
|
const timestamp = +new Date() + "";
|
const randomNum = parseInt((1 + Math.random()) * 65536) + "";
|
return (+(randomNum + timestamp)).toString(32);
|
}
|
|
/**
|
* Check if an element has a class
|
* @param {HTMLElement} elm
|
* @param {string} cls
|
* @returns {boolean}
|
*/
|
export function hasClass(ele, cls) {
|
return !!ele.className.match(new RegExp("(\\s|^)" + cls + "(\\s|$)"));
|
}
|
|
/**
|
* Add class to element
|
* @param {HTMLElement} elm
|
* @param {string} cls
|
*/
|
export function addClass(ele, cls) {
|
if (!hasClass(ele, cls)) ele.className += " " + cls;
|
}
|
|
/**
|
* Remove class from element
|
* @param {HTMLElement} elm
|
* @param {string} cls
|
*/
|
export function removeClass(ele, cls) {
|
if (hasClass(ele, cls)) {
|
const reg = new RegExp("(\\s|^)" + cls + "(\\s|$)");
|
ele.className = ele.className.replace(reg, " ");
|
}
|
}
|
|
export function getTimePeriod(num) {
|
let s1 = "";
|
let s2 = "";
|
let e1 = "";
|
let e2 = "";
|
|
if (num % 2 === 0) {
|
s2 = "30";
|
s1 = ~~(num / 2 - 1) < 10 ? "0" + ~~(num / 2 - 1) : ~~(num / 2 - 1);
|
e1 = ~~(num / 2) < 10 ? "0" + ~~(num / 2) : ~~(num / 2);
|
e2 = "00";
|
} else {
|
s1 = ~~(num / 2) < 10 ? "0" + ~~(num / 2) : ~~(num / 2);
|
s2 = "00";
|
e1 = s1;
|
e2 = "30";
|
}
|
return s1 + ":" + s2 + "-" + e1 + ":" + e2;
|
}
|
