MaxKB/ui/src/utils/common.ts
2025-06-16 17:02:36 +08:00

73 lines
2.1 KiB
TypeScript

/*
从指定数组中过滤出对应的对象
*/
export function relatedObject(list: any, val: any, attr: string) {
const filterData: any = list.filter((item: any) => item[attr] === val)?.[0]
return filterData || null
}
// 排序
export function arraySort(list: Array<any>, property: any, desc?: boolean) {
return list.sort((a: any, b: any) => {
return desc ? b[property] - a[property] : a[property] - b[property]
})
}
/**
* 拆分数组 每n个拆分为一个数组
* @param sourceDataList 资源数据
* @param splitNum 每多少个拆分为一个数组
* @returns 拆分后数组
*/
export function splitArray<T>(sourceDataList: Array<T>, splitNum: number) {
const count =
sourceDataList.length % splitNum == 0
? sourceDataList.length / splitNum
: sourceDataList.length / splitNum + 1
const arrayList: Array<Array<T>> = []
for (let i = 0; i < count; i++) {
let index = i * splitNum
const list: Array<T> = []
let j = 0
while (j < splitNum && index < sourceDataList.length) {
list.push(sourceDataList[index++])
j++
}
arrayList.push(list)
}
return arrayList
}
/**
* 数字处理
*/
export function toThousands(num: any) {
return num?.toString().replace(/\d+/, function (n: any) {
return n.replace(/(\d)(?=(?:\d{3})+$)/g, '$1,')
})
}
export function numberFormat(num: number) {
return num < 1000 ? toThousands(num) : toThousands((num / 1000).toFixed(1)) + 'k'
}
export function filesize(size: number) {
if (!size) return ''
/* byte */
const num = 1024.0
if (size < num) return size + 'B'
if (size < Math.pow(num, 2)) return (size / num).toFixed(2) + 'K' //kb
if (size < Math.pow(num, 3)) return (size / Math.pow(num, 2)).toFixed(2) + 'M' //M
if (size < Math.pow(num, 4)) return (size / Math.pow(num, 3)).toFixed(2) + 'G' //G
return (size / Math.pow(num, 4)).toFixed(2) + 'T' //T
}
// 头像
export const defaultIcon = '/ui/favicon.ico'
export function isAppIcon(url: string | undefined) {
return url === defaultIcon ? '' : url
}
export function isFunction(fn: any) {
return typeof fn === 'function'
}