| | |
|---|
| | | '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'
|
|---|
| | | }
|
|---|
