118 lines
3.1 KiB
TypeScript
118 lines
3.1 KiB
TypeScript
/**
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* Check if an element has a class
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* @param {HTMLElement} ele
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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: HTMLElement, cls: string) {
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return !!ele.className.match(new RegExp("(\\s|^)" + cls + "(\\s|$)"));
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}
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/**
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* Add class to element
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* @param {HTMLElement} ele
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* @param {string} cls
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*/
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export function addClass(ele: HTMLElement, cls: string) {
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if (!hasClass(ele, cls)) ele.className += " " + cls;
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}
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/**
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* Remove class from element
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* @param {HTMLElement} ele
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* @param {string} cls
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*/
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export function removeClass(ele: HTMLElement, cls: string) {
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if (hasClass(ele, cls)) {
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const reg = new RegExp("(\\s|^)" + cls + "(\\s|$)");
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ele.className = ele.className.replace(reg, " ");
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}
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}
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/**
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* 判断是否是外部链接
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*
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* @param {string} path
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* @returns {Boolean}
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*/
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export function isExternal(path: string) {
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const isExternal = /^(https?:|http?:|mailto:|tel:)/.test(path);
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return isExternal;
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}
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/**
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* 格式化增长率，保留两位小数 ，并且去掉末尾的0 取绝对值
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*
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* @param growthRate
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* @returns
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*/
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export function formatGrowthRate(growthRate: number) {
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if (growthRate === 0) {
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return "-";
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}
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const formattedRate = Math.abs(growthRate * 100)
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.toFixed(2)
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.replace(/\.?0+$/, "");
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return formattedRate + "%";
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}
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/**
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* Parse the time to string
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* @param {(Object|string|number)} time
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* @param {string} cFormat
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* @returns {string}
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*/
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export function parseTime(time: string | number | Date | null, cFormat: string | undefined) {
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if (arguments.length === 0) {
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return null;
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}
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const format = cFormat || "{y}-{m}-{d} {h}:{i}:{s}";
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let date;
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if (typeof time === "undefined" || time === null || time === "null") {
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return "";
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} else if (typeof time === "object") {
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date = time;
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} else {
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if (typeof time === "string" && /^[0-9]+$/.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: keyof typeof formatObj): string => {
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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 = Number("0" + value.toString());
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}
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return value.toString() || "0";
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});
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return time_str;
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}
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// 下载文件
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export function downloadFile(obj: BlobPart, name: string, suffix: string) {
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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(), undefined) + "-" + 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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} |