nginx-ui/frontend/src/lib/helper/index.ts
2022-09-15 23:35:49 +08:00

37 lines
1.1 KiB
TypeScript

function bytesToSize(bytes: number) {
if (bytes === 0) return '0 B'
const k = 1024
const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
const i = Math.floor(Math.log(bytes) / Math.log(k))
return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i]
}
function downloadCsv(header: any, data: any[], fileName: string) {
if (!header || !Array.isArray(header) || !Array.isArray(data) || !header.length) {
return
}
let csvContent = 'data:text/csv;charset=utf-8,\ufeff'
const _header = header.map(h => h.title).join(',')
const keys = header.map(item => item.key)
csvContent += _header + '\n'
data.forEach((item, index) => {
let dataString = ''
for (let i = 0; i < keys.length; i++) {
dataString += item[keys[i]] + ','
}
csvContent += index < data.length ? dataString.replace(/,$/, '\n') : dataString.replace(/,$/, '')
})
const a = document.createElement('a')
a.href = encodeURI(csvContent)
a.download = fileName
a.click()
window.URL.revokeObjectURL(csvContent)
}
export {
bytesToSize,
downloadCsv
}