173 lines
3.3 KiB
JavaScript
173 lines
3.3 KiB
JavaScript
export function isArray(value) {
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if (typeof Array.isArray === 'function') {
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return Array.isArray(value);
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} else {
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return Object.prototype.toString.call(value) === '[object Array]';
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}
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}
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export function isObject(value) {
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return Object.prototype.toString.call(value) === '[object Object]';
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}
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export function isNumber(value) {
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return !isNaN(Number(value));
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}
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export function isFunction(value) {
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return typeof value == 'function';
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}
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export function isString(value) {
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return typeof value == 'string';
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}
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export function isEmpty(value) {
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if (value === '' || value === undefined || value === null){
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return true;
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}
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if (isArray(value)) {
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return value.length === 0;
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}
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if (isObject(value)) {
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return Object.keys(value).length === 0;
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}
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return false
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}
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export function isBoolean(value) {
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return typeof value === 'boolean';
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}
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export function last(data) {
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if (isArray(data) || isString(data)) {
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return data[data.length - 1];
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}
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}
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export function cloneDeep(obj) {
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const d = isArray(obj) ? [...obj] : {};
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if (isObject(obj)) {
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for (const key in obj) {
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if (obj[key]) {
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if (obj[key] && typeof obj[key] === 'object') {
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d[key] = cloneDeep(obj[key]);
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} else {
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d[key] = obj[key];
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}
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}
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}
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}
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return d;
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}
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export function clone(obj) {
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return Object.create(Object.getPrototypeOf(obj), Object.getOwnPropertyDescriptors(obj));
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}
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export function deepMerge(a, b) {
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let k;
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for (k in b) {
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a[k] = a[k] && a[k].toString() === '[object Object]' ? deepMerge(a[k], b[k]) : (a[k] = b[k]);
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}
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return a;
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}
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export function contains(parent, node) {
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while (node && (node = node.parentNode)) if (node === parent) return true;
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return false;
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}
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export function orderBy(list, key) {
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return list.sort((a, b) => a[key] - b[key]);
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}
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export function deepTree(list) {
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const newList = [];
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const map = {};
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list.forEach((e) => (map[e.id] = e));
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list.forEach((e) => {
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const parent = map[e.parentId];
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if (parent) {
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(parent.children || (parent.children = [])).push(e);
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} else {
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newList.push(e);
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}
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});
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const fn = (list) => {
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list.map((e) => {
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if (e.children instanceof Array) {
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e.children = orderBy(e.children, 'orderNum');
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fn(e.children);
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}
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});
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};
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fn(newList);
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return orderBy(newList, 'orderNum');
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}
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export function revDeepTree(list = []) {
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const d = [];
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let id = 0;
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const deep = (list, parentId) => {
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list.forEach((e) => {
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if (!e.id) {
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e.id = id++;
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}
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e.parentId = parentId;
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d.push(e);
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if (e.children && isArray(e.children)) {
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deep(e.children, e.id);
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}
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});
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};
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deep(list || [], null);
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return d;
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}
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export function basename(path) {
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let index = path.lastIndexOf('/');
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index = index > -1 ? index : path.lastIndexOf('\\');
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if (index < 0) {
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return path;
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}
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return path.substring(index + 1);
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}
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export function isWxBrowser() {
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const ua = navigator.userAgent.toLowerCase();
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if (ua.match(/MicroMessenger/i) == 'micromessenger') {
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return true;
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} else {
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return false;
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}
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}
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/**
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* @description 如果value小于min，取min；如果value大于max，取max
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* @param {number} min
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* @param {number} max
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* @param {number} value
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*/
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export function range(min = 0, max = 0, value = 0) {
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return Math.max(min, Math.min(max, Number(value)));
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}
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