mirror of
https://gitee.com/huangge1199_admin/vue-pro.git
synced 2024-11-26 01:01:52 +08:00
132 lines
3.4 KiB
JavaScript
132 lines
3.4 KiB
JavaScript
'use strict'
|
|
|
|
// utils is a library of generic helper functions non-specific to axios
|
|
|
|
const { toString } = Object.prototype
|
|
|
|
/**
|
|
* Determine if a value is an Array
|
|
*
|
|
* @param {Object} val The value to test
|
|
* @returns {boolean} True if value is an Array, otherwise false
|
|
*/
|
|
export function isArray(val) {
|
|
return toString.call(val) === '[object Array]'
|
|
}
|
|
|
|
/**
|
|
* Determine if a value is an Object
|
|
*
|
|
* @param {Object} val The value to test
|
|
* @returns {boolean} True if value is an Object, otherwise false
|
|
*/
|
|
export function isObject(val) {
|
|
return val !== null && typeof val === 'object'
|
|
}
|
|
|
|
/**
|
|
* Determine if a value is a Date
|
|
*
|
|
* @param {Object} val The value to test
|
|
* @returns {boolean} True if value is a Date, otherwise false
|
|
*/
|
|
export function isDate(val) {
|
|
return toString.call(val) === '[object Date]'
|
|
}
|
|
|
|
/**
|
|
* Determine if a value is a URLSearchParams object
|
|
*
|
|
* @param {Object} val The value to test
|
|
* @returns {boolean} True if value is a URLSearchParams object, otherwise false
|
|
*/
|
|
export function isURLSearchParams(val) {
|
|
return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams
|
|
}
|
|
|
|
/**
|
|
* Iterate over an Array or an Object invoking a function for each item.
|
|
*
|
|
* If `obj` is an Array callback will be called passing
|
|
* the value, index, and complete array for each item.
|
|
*
|
|
* If 'obj' is an Object callback will be called passing
|
|
* the value, key, and complete object for each property.
|
|
*
|
|
* @param {Object|Array} obj The object to iterate
|
|
* @param {Function} fn The callback to invoke for each item
|
|
*/
|
|
export function forEach(obj, fn) {
|
|
// Don't bother if no value provided
|
|
if (obj === null || typeof obj === 'undefined') {
|
|
return
|
|
}
|
|
|
|
// Force an array if not already something iterable
|
|
if (typeof obj !== 'object') {
|
|
/* eslint no-param-reassign:0 */
|
|
obj = [obj]
|
|
}
|
|
|
|
if (isArray(obj)) {
|
|
// Iterate over array values
|
|
for (let i = 0, l = obj.length; i < l; i++) {
|
|
fn.call(null, obj[i], i, obj)
|
|
}
|
|
} else {
|
|
// Iterate over object keys
|
|
for (const key in obj) {
|
|
if (Object.prototype.hasOwnProperty.call(obj, key)) {
|
|
fn.call(null, obj[key], key, obj)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 是否为boolean 值
|
|
* @param val
|
|
* @returns {boolean}
|
|
*/
|
|
export function isBoolean(val) {
|
|
return typeof val === 'boolean'
|
|
}
|
|
|
|
/**
|
|
* 是否为真正的对象{} new Object
|
|
* @param {any} obj - 检测的对象
|
|
* @returns {boolean}
|
|
*/
|
|
export function isPlainObject(obj) {
|
|
return Object.prototype.toString.call(obj) === '[object Object]'
|
|
}
|
|
|
|
/**
|
|
* Function equal to merge with the difference being that no reference
|
|
* to original objects is kept.
|
|
*
|
|
* @see merge
|
|
* @param {Object} obj1 Object to merge
|
|
* @returns {Object} Result of all merge properties
|
|
*/
|
|
export function deepMerge(/* obj1, obj2, obj3, ... */) {
|
|
const result = {}
|
|
function assignValue(val, key) {
|
|
if (typeof result[key] === 'object' && typeof val === 'object') {
|
|
result[key] = deepMerge(result[key], val)
|
|
} else if (typeof val === 'object') {
|
|
result[key] = deepMerge({}, val)
|
|
} else {
|
|
result[key] = val
|
|
}
|
|
}
|
|
for (let i = 0, l = arguments.length; i < l; i++) {
|
|
forEach(arguments[i], assignValue)
|
|
}
|
|
return result
|
|
}
|
|
|
|
export function isUndefined(val) {
|
|
return typeof val === 'undefined'
|
|
}
|