36 lines
1.1 KiB
TypeScript
36 lines
1.1 KiB
TypeScript
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import FileSaver from 'file-saver/dist/FileSaver.js'
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export const saveAs: typeof import('file-saver').saveAs = FileSaver.saveAs
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export const getIndexPath = (id: number): string => {
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const idStr = String(id)
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// 获取最后三位，倒序排列
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// x, y, z are the reversed last digits of the score id. Example: id 123456789, x = 9, y = 8, z = 7
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// https://developers.musescore.com/#/file-urls
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// "5449062" -> ["2", "6", "0"]
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const indexN = idStr.split('').reverse().slice(0, 3)
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return indexN.join('/')
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}
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export const fetchData = async (url: string, init?: RequestInit): Promise<Uint8Array> => {
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const r = await fetch(url, init)
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const data = await r.arrayBuffer()
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return new Uint8Array(data)
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}
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export const waitForDocumentLoaded = (): Promise<void> => {
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if (document.readyState !== 'complete') {
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return new Promise(resolve => {
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const cb = () => {
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if (document.readyState === 'complete') {
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resolve()
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document.removeEventListener('readystatechange', cb)
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}
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}
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document.addEventListener('readystatechange', cb)
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})
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} else {
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return Promise.resolve()
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}
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}
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