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export function base64DataUriToBlob(dataURI: string) { | |
dataURI = dataURI.replace(/^data:/, '') | |
const match = dataURI.match(/(?:image|video|audio|text)\/[^;]+/) | |
const type = match?.[0] || '' | |
const base64 = Buffer.from(dataURI.replace(/^[^,]+,/, ''), 'base64').toString( | |
'binary' | |
) | |
const arrayBuffer = new ArrayBuffer(base64.length) | |
const typedArray = new Uint8Array(arrayBuffer) | |
for (let i = 0; i < base64.length; i++) { | |
typedArray[i] = base64.charCodeAt(i) | |
} | |
return new Blob([arrayBuffer], { type }) | |
} | |