|
|
export function copy(obj) {
|
|
|
return JSON.parse(JSON.stringify(obj));
|
|
|
}
|
|
|
|
|
|
export function formatDate(date) {
|
|
|
if (isEmpty(date)) {
|
|
|
return "NaN";
|
|
|
}
|
|
|
|
|
|
const year = date.getFullYear();
|
|
|
const month = date.getMonth() + 1;
|
|
|
const day = date.getDate();
|
|
|
|
|
|
const monthStr = ("" + month).padStart(2, 0);
|
|
|
const dayStr = ("" + day).padStart(2, 0);
|
|
|
const formatted = year + "-" + monthStr + "-" + dayStr;
|
|
|
|
|
|
return formatted;
|
|
|
}
|
|
|
|
|
|
export function formatTime(date) {
|
|
|
const hours = date.getHours();
|
|
|
const minutes = date.getMinutes();
|
|
|
|
|
|
const hoursStr = ("" + hours).padStart(2, 0);
|
|
|
const minutesStr = ("" + minutes).padStart(2, 0);
|
|
|
const formatted = hoursStr + ":" + minutesStr;
|
|
|
|
|
|
return formatted;
|
|
|
}
|
|
|
|
|
|
export function formatDatetime(date) {
|
|
|
const year = date.getFullYear();
|
|
|
const month = date.getMonth() + 1;
|
|
|
const day = date.getDate();
|
|
|
|
|
|
const monthStr = ("" + month).padStart(2, 0);
|
|
|
const dayStr = ("" + day).padStart(2, 0);
|
|
|
|
|
|
const hours = date.getHours();
|
|
|
const minutes = date.getMinutes();
|
|
|
|
|
|
const hoursStr = ("" + hours).padStart(2, 0);
|
|
|
const minutesStr = ("" + minutes).padStart(2, 0);
|
|
|
|
|
|
const formatted = year + "-" + monthStr + "-" + dayStr + " " + hoursStr + ":" + minutesStr;
|
|
|
|
|
|
return formatted;
|
|
|
}
|
|
|
|
|
|
export function camelCase(name) {
|
|
|
return name.substr(0, 1).toLowerCase() + name.substr(1);
|
|
|
}
|
|
|
|
|
|
export class UrlBuilder {
|
|
|
constructor(url) {
|
|
|
this.url = url;
|
|
|
this.paramList = [];
|
|
|
}
|
|
|
|
|
|
append(name, value) {
|
|
|
if (isNotEmpty(value)) {
|
|
|
this.paramList.push({ name: name, value: value });
|
|
|
}
|
|
|
return this;
|
|
|
}
|
|
|
|
|
|
build() {
|
|
|
this.paramList.forEach((e, i, a) => {
|
|
|
if (i === 0) {
|
|
|
this.url += "?";
|
|
|
} else {
|
|
|
this.url += "&";
|
|
|
}
|
|
|
this.url += e.name + "=" + e.value;
|
|
|
});
|
|
|
return this.url;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
export function isNotEmpty(val) {
|
|
|
return val !== undefined && val !== null && val !== "";
|
|
|
}
|
|
|
|
|
|
export function prepareUrl(url) {
|
|
|
return new UrlBuilder(url);
|
|
|
}
|
|
|
|
|
|
export function throttle(fn, delay, atleast) {
|
|
|
let timeout = null,
|
|
|
startTime = new Date();
|
|
|
return function () {
|
|
|
let curTime = new Date();
|
|
|
clearTimeout(timeout);
|
|
|
if (curTime - startTime >= atleast) {
|
|
|
fn();
|
|
|
startTime = curTime;
|
|
|
} else {
|
|
|
timeout = setTimeout(fn, delay);
|
|
|
}
|
|
|
};
|
|
|
}
|
|
|
|
|
|
export function clickUrl(url) {
|
|
|
const httpLink = document.createElement("a");
|
|
|
httpLink.href = url;
|
|
|
httpLink.target = "_blank";
|
|
|
httpLink.click();
|
|
|
}
|
|
|
|
|
|
export function escape2Html(str) {
|
|
|
var temp = document.createElement("div");
|
|
|
temp.innerHTML = str;
|
|
|
var output = temp.innerText || temp.textContent;
|
|
|
temp = null;
|
|
|
return output;
|
|
|
}
|
|
|
|
|
|
export function formatPrice(price) {
|
|
|
return Math.ceil(price).toLocaleString();
|
|
|
}
|
|
|
|
|
|
export function formatPercent(number) {
|
|
|
return Math.round(number * 100) + "%";
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* ! 不支持计算 Set 或 Map
|
|
|
* @param {*} val
|
|
|
* @example
|
|
|
* true if: 0, [], {}, null, '', undefined
|
|
|
* false if: 'false', 'undefined'
|
|
|
*/
|
|
|
export function isEmpty(val) {
|
|
|
// return val === undefined || val === null || val === "";
|
|
|
return [Object, Array].includes((val || {}).constructor) && !Object.entries(val || {}).length;
|
|
|
}
|
|
|
/**
|
|
|
* 数组排序
|
|
|
*/
|
|
|
export const sortBy = key => {
|
|
|
return (a, b) => (getNestedValue(a, key) > getNestedValue(b, key) ? 1 : getNestedValue(b, key) > getNestedValue(a, key) ? -1 : 0);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Object排序keys
|
|
|
*/
|
|
|
export const sortKeys = obj =>
|
|
|
Object.keys(obj)
|
|
|
.sort()
|
|
|
.reduce((a, k2) => ({ ...a, [k2]: obj[k2] }), {});
|
|
|
|
|
|
/**
|
|
|
* 数组排序, 给定排序数组
|
|
|
* @param {array} items 需要排序的数组
|
|
|
* @param {array} keyName 排序的key
|
|
|
* @param {array} keyOrder 给定排序
|
|
|
* @returns
|
|
|
*/
|
|
|
export const sortArrayByOrder = (items, keyName, keyOrder) => {
|
|
|
return items.sort((a, b) => {
|
|
|
return keyOrder.indexOf(a[keyName]) - keyOrder.indexOf(b[keyName]);
|
|
|
});
|
|
|
};
|
|
|
|
|
|
export function unique(arr) {
|
|
|
const x = new Set(arr);
|
|
|
return [...x];
|
|
|
}
|
|
|
export const uniqWith = (arr, fn) => arr.filter((element, index) => arr.findIndex((step) => fn(element, step)) === index);
|
|
|
|
|
|
/**
|
|
|
* 合并Object, 递归地
|
|
|
*/
|
|
|
export function merge(...objects) {
|
|
|
const isDeep = objects.some(obj => obj !== null && typeof obj === "object");
|
|
|
|
|
|
const result = objects[0] || (isDeep ? {} : objects[0]);
|
|
|
|
|
|
for (let i = 1; i < objects.length; i++) {
|
|
|
const obj = objects[i];
|
|
|
|
|
|
if (!obj) continue;
|
|
|
|
|
|
Object.keys(obj).forEach(key => {
|
|
|
const val = obj[key];
|
|
|
|
|
|
if (isDeep) {
|
|
|
if (Array.isArray(val)) {
|
|
|
result[key] = [].concat(Array.isArray(result[key]) ? result[key] : [result[key]], val);
|
|
|
} else if (typeof val === "object") {
|
|
|
result[key] = merge(result[key], val);
|
|
|
} else {
|
|
|
result[key] = val;
|
|
|
}
|
|
|
} else {
|
|
|
result[key] = typeof val === "boolean" ? val : result[key];
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 数组分组
|
|
|
* - 相当于 lodash 的 _.groupBy
|
|
|
* @see https://www.lodashjs.com/docs/lodash.groupBy#_groupbycollection-iteratee_identity
|
|
|
*/
|
|
|
export function groupBy(array = [], callback) {
|
|
|
return array.reduce((groups, item) => {
|
|
|
const key = typeof callback === "function" ? callback(item) : item[callback];
|
|
|
|
|
|
if (!groups[key]) {
|
|
|
groups[key] = [];
|
|
|
}
|
|
|
|
|
|
groups[key].push(item);
|
|
|
return groups;
|
|
|
}, {});
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 创建一个从 object 中选中的属性的对象。
|
|
|
* @param {*} object
|
|
|
* @param {array} keys
|
|
|
*/
|
|
|
export function pick(object, keys) {
|
|
|
return keys.reduce((obj, key) => {
|
|
|
if (object && Object.prototype.hasOwnProperty.call(object, key)) {
|
|
|
obj[key] = object[key];
|
|
|
}
|
|
|
return obj;
|
|
|
}, {});
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 返回对象的副本，经过筛选以省略指定的键。
|
|
|
* @param {*} object
|
|
|
* @param {string[]} keysToOmit
|
|
|
* @returns
|
|
|
*/
|
|
|
export function omit(object, keysToOmit) {
|
|
|
return Object.fromEntries(Object.entries(object).filter(([key]) => !keysToOmit.includes(key)));
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 深拷贝
|
|
|
*/
|
|
|
export function cloneDeep(value, visited = new WeakMap()) {
|
|
|
// 处理循环引用
|
|
|
if (visited.has(value)) {
|
|
|
return visited.get(value);
|
|
|
}
|
|
|
|
|
|
// 特殊对象和基本类型处理
|
|
|
if (value instanceof Date) {
|
|
|
return new Date(value);
|
|
|
}
|
|
|
if (value instanceof RegExp) {
|
|
|
return new RegExp(value.source, value.flags);
|
|
|
}
|
|
|
if (value === null || typeof value !== 'object') {
|
|
|
return value;
|
|
|
}
|
|
|
|
|
|
// 创建一个新的WeakMap项以避免内存泄漏
|
|
|
let result;
|
|
|
if (Array.isArray(value)) {
|
|
|
result = [];
|
|
|
visited.set(value, result);
|
|
|
} else {
|
|
|
result = {};
|
|
|
visited.set(value, result);
|
|
|
}
|
|
|
|
|
|
for (const key of Object.getOwnPropertySymbols(value)) {
|
|
|
// 处理Symbol属性
|
|
|
result[key] = cloneDeep(value[key], visited);
|
|
|
}
|
|
|
|
|
|
for (const key in value) {
|
|
|
if (Object.prototype.hasOwnProperty.call(value, key)) {
|
|
|
// 处理普通属性
|
|
|
result[key] = cloneDeep(value[key], visited);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return result;
|
|
|
}
|
|
|
/**
|
|
|
* 向零四舍五入, 固定精度设置
|
|
|
*/
|
|
|
function curriedFix(precision = 0) {
|
|
|
return function (number) {
|
|
|
// Shift number by precision places
|
|
|
const shift = Math.pow(10, precision);
|
|
|
const shiftedNumber = number * shift;
|
|
|
|
|
|
// Round to nearest integer
|
|
|
const roundedNumber = Math.round(shiftedNumber);
|
|
|
|
|
|
// Shift back decimal place
|
|
|
return roundedNumber / shift;
|
|
|
};
|
|
|
}
|
|
|
/**
|
|
|
* 向零四舍五入, 保留2位小数
|
|
|
*/
|
|
|
export const fixTo2Decimals = curriedFix(2);
|
|
|
/**
|
|
|
* 向零四舍五入, 保留4位小数
|
|
|
*/
|
|
|
export const fixTo4Decimals = curriedFix(4);
|
|
|
|
|
|
export const fixTo1Decimals = curriedFix(1);
|
|
|
export const fixToInt = curriedFix(0);
|
|
|
|
|
|
/**
|
|
|
* 映射
|
|
|
* @example
|
|
|
* const keyMap = {
|
|
|
a: [{key: 'a1'}, {key: 'a2', transform: v => v * 2}],
|
|
|
b: {key: 'b1'}
|
|
|
};
|
|
|
const result = objectMapper({a: 1, b: 3}, keyMap);
|
|
|
// result = {a1: 1, a2: 2, b1: 3}
|
|
|
*
|
|
|
*/
|
|
|
export function objectMapper(input, keyMap) {
|
|
|
// Loop through array mapping
|
|
|
if (Array.isArray(input)) {
|
|
|
return input.map(obj => objectMapper(obj, keyMap));
|
|
|
}
|
|
|
|
|
|
if (typeof input === "object") {
|
|
|
const mappedObj = {};
|
|
|
|
|
|
Object.keys(input).forEach(key => {
|
|
|
// Keep original keys not in keyMap
|
|
|
if (!keyMap[key]) {
|
|
|
mappedObj[key] = input[key];
|
|
|
}
|
|
|
// Handle array of maps
|
|
|
if (Array.isArray(keyMap[key])) {
|
|
|
keyMap[key].forEach(map => {
|
|
|
let value = input[key];
|
|
|
if (map.transform) value = map.transform(value);
|
|
|
mappedObj[map.key] = value;
|
|
|
});
|
|
|
|
|
|
// Handle single map
|
|
|
} else {
|
|
|
const map = keyMap[key];
|
|
|
if (map) {
|
|
|
let value = input[key];
|
|
|
if (map.transform) value = map.transform(value);
|
|
|
mappedObj[map.key || map] = value;
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
|
|
|
return mappedObj;
|
|
|
}
|
|
|
|
|
|
return input;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 创建一个对应于对象路径的值数组
|
|
|
*/
|
|
|
export function at(obj, path) {
|
|
|
let result;
|
|
|
if (Array.isArray(obj)) {
|
|
|
// array case
|
|
|
const indexes = path.split(".").map(i => parseInt(i));
|
|
|
result = [];
|
|
|
for (let i = 0; i < indexes.length; i++) {
|
|
|
result.push(obj[indexes[i]]);
|
|
|
}
|
|
|
} else {
|
|
|
// object case
|
|
|
const indexes = path.split(".").map(i => i);
|
|
|
result = [obj];
|
|
|
for (let i = 0; i < indexes.length; i++) {
|
|
|
result = [result[0]?.[indexes[i]] || undefined];
|
|
|
}
|
|
|
}
|
|
|
return result;
|
|
|
}
|
|
|
/**
|
|
|
* 删除 null/undefined
|
|
|
*/
|
|
|
export function flush(collection) {
|
|
|
let result, len, i;
|
|
|
if (!collection) {
|
|
|
return undefined;
|
|
|
}
|
|
|
if (Array.isArray(collection)) {
|
|
|
result = [];
|
|
|
len = collection.length;
|
|
|
for (i = 0; i < len; i++) {
|
|
|
const elem = collection[i];
|
|
|
if (elem != null) {
|
|
|
result.push(elem);
|
|
|
}
|
|
|
}
|
|
|
return result;
|
|
|
}
|
|
|
if (typeof collection === "object") {
|
|
|
result = {};
|
|
|
const keys = Object.keys(collection);
|
|
|
len = keys.length;
|
|
|
for (i = 0; i < len; i++) {
|
|
|
const key = keys[i];
|
|
|
const value = collection[key];
|
|
|
if (value != null) {
|
|
|
result[key] = value;
|
|
|
}
|
|
|
}
|
|
|
return result;
|
|
|
}
|
|
|
return undefined;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 千分位 格式化数字
|
|
|
*/
|
|
|
export const numberFormatter = number => {
|
|
|
return new Intl.NumberFormat().format(number);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* @example
|
|
|
* const obj = { a: { b: 'c' } };
|
|
|
* const keyArr = ['a', 'b'];
|
|
|
* getNestedValue(obj, keyArr); // Returns: 'c'
|
|
|
*/
|
|
|
export const getNestedValue = (obj, keyArr) => {
|
|
|
return keyArr.reduce((acc, curr) => {
|
|
|
return acc && Object.prototype.hasOwnProperty.call(acc, curr) ? acc[curr] : undefined;
|
|
|
// return acc && acc[curr];
|
|
|
}, obj);
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* 计算笛卡尔积
|
|
|
*/
|
|
|
export const cartesianProductArray = (arr, sep = "_", index = 0, prefix = "") => {
|
|
|
let result = [];
|
|
|
if (index === arr.length) {
|
|
|
return [prefix];
|
|
|
}
|
|
|
arr[index].forEach(item => {
|
|
|
result = result.concat(cartesianProductArray(arr, sep, index + 1, prefix ? `${prefix}${sep}${item}` : `${item}`));
|
|
|
});
|
|
|
return result;
|
|
|
};
|
|
|
|
|
|
export const stringToColour = str => {
|
|
|
var hash = 0;
|
|
|
for (let i = 0; i < str.length; i++) {
|
|
|
hash = str.charCodeAt(i) + ((hash << 5) - hash);
|
|
|
}
|
|
|
var colour = "#";
|
|
|
for (let i = 0; i < 3; i++) {
|
|
|
var value = (hash >> (i * 8)) & 0xff;
|
|
|
value = (value % 150) + 50;
|
|
|
colour += ("00" + value.toString(16)).substr(-2);
|
|
|
}
|
|
|
return colour;
|
|
|
};
|
|
|
|
|
|
export const debounce = (func, wait, immediate) => {
|
|
|
var timeout;
|
|
|
return function () {
|
|
|
var context = this,
|
|
|
args = arguments;
|
|
|
clearTimeout(timeout);
|
|
|
if (immediate && !timeout) func.apply(context, args);
|
|
|
timeout = setTimeout(function () {
|
|
|
timeout = null;
|
|
|
if (!immediate) func.apply(context, args);
|
|
|
}, wait);
|
|
|
};
|
|
|
};
|
|
|
|
|
|
export const removeFormattingChars = str => {
|
|
|
const regex = /[\r\n\t\v\f]/g;
|
|
|
str = str.replace(regex, " ");
|
|
|
// Replace more than four consecutive spaces with a single space
|
|
|
str = str.replace(/\s{4,}/g, " ");
|
|
|
return str;
|
|
|
};
|
|
|
|
|
|
export const olog = (text, ...args) => {
|
|
|
console.log(`%c ${text} `, "background:#fb923c ; padding: 1px; border-radius: 3px; color: #fff", ...args);
|
|
|
};
|
|
|
|
|
|
export const sanitizeFilename = str => {
|
|
|
// Remove whitespace and replace with hyphens
|
|
|
str = str.replace(/\s+/g, "-");
|
|
|
// Remove invalid characters and replace with hyphens
|
|
|
str = str.replace(/[^a-zA-Z0-9.-]/g, "-");
|
|
|
// Replace consecutive hyphens with a single hyphen
|
|
|
str = str.replace(/-+/g, "-");
|
|
|
// Trim leading and trailing hyphens
|
|
|
str = str.replace(/^-+|-+$/g, "");
|
|
|
return str;
|
|
|
};
|
|
|
|
|
|
export const formatBytes = (bytes, decimals = 2) => {
|
|
|
if (bytes === 0) return "";
|
|
|
|
|
|
const k = 1024;
|
|
|
const dm = decimals < 0 ? 0 : decimals;
|
|
|
const sizes = ["Bytes", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
|
|
|
|
|
|
const i = Math.floor(Math.log(bytes) / Math.log(k));
|
|
|
return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + " " + sizes[i];
|
|
|
};
|
|
|
export const calcCacheSizes = async () => {
|
|
|
try {
|
|
|
let swCacheSize = 0;
|
|
|
let diskCacheSize = 0;
|
|
|
let indexedDBSize = 0;
|
|
|
|
|
|
// 1. Get the service worker cache size
|
|
|
if ("caches" in window) {
|
|
|
const cacheNames = await caches.keys();
|
|
|
for (const name of cacheNames) {
|
|
|
const cache = await caches.open(name);
|
|
|
const requests = await cache.keys();
|
|
|
for (const request of requests) {
|
|
|
const response = await cache.match(request);
|
|
|
swCacheSize += Number(response.headers.get("Content-Length")) || 0;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// 2. Get the disk cache size
|
|
|
// const diskCacheName = 'disk-cache';
|
|
|
// const diskCache = await caches.open(diskCacheName);
|
|
|
// const diskCacheKeys = await diskCache.keys();
|
|
|
// for (const request of diskCacheKeys) {
|
|
|
// const response = await diskCache.match(request);
|
|
|
// diskCacheSize += Number(response.headers.get('Content-Length')) || 0;
|
|
|
// }
|
|
|
|
|
|
// 3. Get the IndexedDB cache size
|
|
|
// const indexedDBNames = await window.indexedDB.databases();
|
|
|
// for (const dbName of indexedDBNames) {
|
|
|
// const db = await window.indexedDB.open(dbName.name);
|
|
|
// const objectStoreNames = db.objectStoreNames;
|
|
|
|
|
|
// if (objectStoreNames !== undefined) {
|
|
|
// const objectStores = Array.from(objectStoreNames).map((storeName) => db.transaction([storeName], 'readonly').objectStore(storeName));
|
|
|
|
|
|
// for (const objectStore of objectStores) {
|
|
|
// const request = objectStore.count();
|
|
|
// request.onsuccess = () => {
|
|
|
// indexedDBSize += request.result;
|
|
|
// };
|
|
|
// }
|
|
|
// }
|
|
|
// }
|
|
|
|
|
|
return { swCacheSize, diskCacheSize, indexedDBSize, totalSize: Number(swCacheSize) + Number(diskCacheSize) + indexedDBSize };
|
|
|
} catch (error) {
|
|
|
console.error("Error getting cache sizes:", error);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
export const clearAllCaches = async cb => {
|
|
|
try {
|
|
|
// 1. Clear the service worker cache
|
|
|
if ("caches" in window) {
|
|
|
// if (navigator.serviceWorker) {
|
|
|
const cacheNames = await caches.keys();
|
|
|
await Promise.all(cacheNames.map(name => caches.delete(name)));
|
|
|
}
|
|
|
|
|
|
// 2. Clear the disk cache (HTTP cache)
|
|
|
// const diskCacheName = 'disk-cache';
|
|
|
// await window.caches.delete(diskCacheName);
|
|
|
// const diskCache = await window.caches.open(diskCacheName);
|
|
|
// const diskCacheKeys = await diskCache.keys();
|
|
|
// await Promise.all(diskCacheKeys.map((request) => diskCache.delete(request)));
|
|
|
|
|
|
// 3. Clear the IndexedDB cache
|
|
|
const indexedDBNames = await window.indexedDB.databases();
|
|
|
await Promise.all(indexedDBNames.map(dbName => window.indexedDB.deleteDatabase(dbName.name)));
|
|
|
|
|
|
// Unregister the service worker
|
|
|
const registration = await navigator.serviceWorker.getRegistration();
|
|
|
if (registration) {
|
|
|
await registration.unregister();
|
|
|
console.log("Service worker unregistered");
|
|
|
} else {
|
|
|
console.log("No service worker registered");
|
|
|
}
|
|
|
if (typeof cb === "function") {
|
|
|
cb();
|
|
|
}
|
|
|
} catch (error) {
|
|
|
console.error("Error clearing caches or unregistering service worker:", error);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
export const loadScript = src => {
|
|
|
return new Promise((resolve, reject) => {
|
|
|
const script = document.createElement("script");
|
|
|
script.type = "text/javascript";
|
|
|
script.onload = resolve;
|
|
|
script.onerror = reject;
|
|
|
script.crossOrigin = "anonymous";
|
|
|
script.src = src;
|
|
|
if (document.head.append) {
|
|
|
document.head.append(script);
|
|
|
} else {
|
|
|
document.getElementsByTagName("head")[0].appendChild(script);
|
|
|
}
|
|
|
});
|
|
|
};
|
|
|
|
|
|
//格式化为冒号时间，2010转为20:10
|
|
|
export const formatColonTime = text => {
|
|
|
const hours = text.substring(0, 2);
|
|
|
const minutes = text.substring(2);
|
|
|
return `${hours}:${minutes}`;
|
|
|
};
|
|
|
|
|
|
// 生成唯一 36 位数字，用于新增记录 ID 赋值，React key 属性等
|
|
|
export const generateId = () => (
|
|
|
new Date().getTime().toString(36) + Math.random().toString(36).substring(2, 9)
|
|
|
)
|