453 lines
10 KiB
JavaScript
453 lines
10 KiB
JavaScript
/**
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* Created by PanJiaChen on 16/11/18.
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*/
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/**
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* Parse the time to string
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* @param {(Object|string|number)} time
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* @param {string} cFormat
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* @returns {string}
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*/
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export function parseTime(time, cFormat) {
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if (arguments.length === 0) {
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return null;
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}
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const format = cFormat || "{y}-{m}-{d} {h}:{i}:{s}";
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let date;
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if (typeof time === "undefined" || time === null || time === "null") {
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return "";
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} else if (typeof time === "object") {
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date = time;
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} else {
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if (typeof time === "string" && /^[0-9]+$/.test(time)) {
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time = parseInt(time);
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}
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if (typeof time === "number" && time.toString().length === 10) {
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time = time * 1000;
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}
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date = new Date(time);
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}
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const formatObj = {
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y: date.getFullYear(),
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m: date.getMonth() + 1,
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d: date.getDate(),
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h: date.getHours(),
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i: date.getMinutes(),
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s: date.getSeconds(),
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a: date.getDay()
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};
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const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
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let value = formatObj[key];
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// Note: getDay() returns 0 on Sunday
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if (key === "a") {
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return ["日", "一", "二", "三", "四", "五", "六"][value];
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}
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if (result.length > 0 && value < 10) {
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value = "0" + value;
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}
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return value || 0;
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});
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return time_str;
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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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*/
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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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}
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/**
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* This is just a simple version of deep copy
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* Has a lot of edge cases bug
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* If you want to use a perfect deep copy, use lodash's _.cloneDeep
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* @param {Object} source
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* @returns {Object}
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*/
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export function deepClone(source) {
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if (!source && typeof source !== "object") {
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throw new Error("error arguments", "deepClone");
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}
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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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}
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});
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return targetObj;
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}
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/**
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* @param {Array} arr
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* @returns {Array}
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*/
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export function uniqueArr(arr) {
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return Array.from(new Set(arr));
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}
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/**
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* @returns {string}
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*/
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export function createUniqueString() {
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const timestamp = +new Date() + "";
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const randomNum = parseInt((1 + Math.random()) * 65536) + "";
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return (+(randomNum + timestamp)).toString(32);
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}
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/**
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* Check if an element has a class
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* @param {HTMLElement} elm
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* @param {string} cls
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* @returns {boolean}
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*/
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export function hasClass(ele, cls) {
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return !!ele.className.match(new RegExp("(\\s|^)" + cls + "(\\s|$)"));
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}
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/**
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* Add class to element
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* @param {HTMLElement} elm
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* @param {string} cls
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*/
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export function addClass(ele, cls) {
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if (!hasClass(ele, cls)) ele.className += " " + cls;
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}
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/**
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* Remove class from element
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* @param {HTMLElement} elm
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* @param {string} cls
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*/
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export function removeClass(ele, cls) {
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if (hasClass(ele, cls)) {
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const reg = new RegExp("(\\s|^)" + cls + "(\\s|$)");
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ele.className = ele.className.replace(reg, " ");
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}
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}
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// 替换邮箱字符
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export function regEmail(email) {
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if (String(email).indexOf("@") > 0) {
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const str = email.split("@");
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let _s = "";
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if (str[0].length > 3) {
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for (var i = 0; i < str[0].length - 3; i++) {
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_s += "*";
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}
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}
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var new_email = str[0].substr(0, 3) + _s + "@" + str[1];
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}
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return new_email;
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}
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// 替换手机字符
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export function regMobile(mobile) {
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if (mobile.length > 7) {
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var new_mobile = mobile.substr(0, 3) + "****" + mobile.substr(7);
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}
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return new_mobile;
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}
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// 下载文件
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export function downloadFile(obj, name, suffix) {
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const url = window.URL.createObjectURL(new Blob([obj]));
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const link = document.createElement("a");
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link.style.display = "none";
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link.href = url;
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const fileName = parseTime(new Date()) + "-" + name + "." + suffix;
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link.setAttribute("download", fileName);
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document.body.appendChild(link);
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link.click();
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document.body.removeChild(link);
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}
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/**
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* 生成范围随机数
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* @param {Object} Min
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* @param {Object} Max
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*/
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export function RandomNumBoth(Max, Min = 0) {
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var Range = Max - Min;
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var Rand = Math.random();
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var num = Min + Math.round(Rand * Range); //四舍五入
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return num;
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}
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/**
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* 判断是不是PC浏览器
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* @returns
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*/
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export function isPcBowser() {
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if (!window.navigator) {
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return false;
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} else {
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if (/Mobile|Android|webOS|iPhone|iPad|Phone/i.test(navigator.userAgent)) {
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return false;
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} else {
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return true;
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}
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}
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}
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/**
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* 保留小数n位，不进行四舍五入
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* num你传递过来的数字,
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* decimal你保留的几位,默认保留小数后两位
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* isInt 是否保留0
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*/
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export function formatDecimal(num = 0, decimal = 2, isInt = false) {
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num = num.toFixed(3).toString();
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const index = num.indexOf(".");
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if (index !== -1) {
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num = num.substring(0, decimal + index + 1);
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} else {
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num = num.substring(0);
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}
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//截取后保留两位小数
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if (isInt) {
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return parseFloat(num);
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} else {
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return parseFloat(num).toFixed(decimal);
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}
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}
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/**
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* 传入数组，以及要交换位置的2个元素的下标
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* @param {*} arr
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* @param {*} i1
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* @param {*} i2
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* @returns
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*/
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export function swapArrayEle(arr, i1, i2) {
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arr[i1] = arr.splice(i2, 1, arr[i1])[0];
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return arr;
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}
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