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Pinafore-Web-Client-Frontend/tests/blobUtils.js
2019-08-03 13:49:37 -07:00

16 lines
439 B
JavaScript

export function base64StringToBlob (base64, type) {
function binaryStringToArrayBuffer (binary) {
const length = binary.length
const buf = new ArrayBuffer(length)
const arr = new Uint8Array(buf)
let i = -1
while (++i < length) {
arr[i] = binary.charCodeAt(i)
}
return buf
}
const parts = [binaryStringToArrayBuffer(atob(base64))]
return type ? new Blob(parts, { type: type }) : new Blob(parts)
}