mall-app-b/peach/helper/utils.js

export function isArray(value) {
    if (typeof Array.isArray === 'function') {
        return Array.isArray(value)
    } else {
        return Object.prototype.toString.call(value) === '[object Array]'
    }
}

export function isObject(value) {
    return Object.prototype.toString.call(value) === '[object Object]'
}

export function isNumber(value) {
    return !isNaN(Number(value))
}

export function isFunction(value) {
    return typeof value == 'function'
}

export function isString(value) {
    return typeof value == 'string'
}

export function isEmpty(value) {
    if (isArray(value)) {
        return value.length === 0
    }

    if (isObject(value)) {
        return Object.keys(value).length === 0
    }

    return value === '' || value === undefined || value === null
}

export function isBoolean(value) {
    return typeof value === 'boolean'
}

export function last(data) {
    if (isArray(data) || isString(data)) {
        return data[data.length - 1]
    }
}

export function cloneDeep(obj) {
    const d = isArray(obj) ? obj : {}

    if (isObject(obj)) {
        for (const key in obj) {
            if (obj[key]) {
                if (obj[key] && typeof obj[key] === 'object') {
                    d[key] = cloneDeep(obj[key])
                } else {
                    d[key] = obj[key]
                }
            }
        }
    }

    return d
}

export function clone(obj) {
    return Object.create(Object.getPrototypeOf(obj), Object.getOwnPropertyDescriptors(obj))
}

export function deepMerge(a, b) {
    let k
    for (k in b) {
        a[k] = a[k] && a[k].toString() === '[object Object]' ? deepMerge(a[k], b[k]) : (a[k] = b[k])
    }
    return a
}

export function contains(parent, node) {
    while (node && (node = node.parentNode)) if (node === parent) return true
    return false
}

export function orderBy(list, key) {
    return list.sort((a, b) => a[key] - b[key])
}

export function deepTree(list) {
    const newList = []
    const map = {}

    list.forEach((e) => (map[e.id] = e))

    list.forEach((e) => {
        const parent = map[e.parentId]

        if (parent) {
            ;(parent.children || (parent.children = [])).push(e)
        } else {
            newList.push(e)
        }
    })

    const fn = (list) => {
        list.map((e) => {
            if (e.children instanceof Array) {
                e.children = orderBy(e.children, 'orderNum')

                fn(e.children)
            }
        })
    }

    fn(newList)

    return orderBy(newList, 'orderNum')
}

export function revDeepTree(list = []) {
    const d = []
    let id = 0

    const deep = (list, parentId) => {
        list.forEach((e) => {
            if (!e.id) {
                e.id = id++
            }

            e.parentId = parentId

            d.push(e)

            if (e.children && isArray(e.children)) {
                deep(e.children, e.id)
            }
        })
    }

    deep(list || [], null)

    return d
}

export function basename(path) {
    let index = path.lastIndexOf('/')
    index = index > -1 ? index : path.lastIndexOf('\\')
    if (index < 0) {
        return path
    }
    return path.substring(index + 1)
}

export function isWxBrowser() {
    const ua = navigator.userAgent.toLowerCase()
    if (ua.match(/MicroMessenger/i) == 'micromessenger') {
        return true
    } else {
        return false
    }
}

/**
 * @description 如果value小于min，取min；如果value大于max，取max
 * @param {number} min
 * @param {number} max
 * @param {number} value
 */
export function range(min = 0, max = 0, value = 0) {
    return Math.max(min, Math.min(max, Number(value)))
}