pinafore/tests/blobUtils.js

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2018-03-03 01:54:38 +00:00
export function base64StringToBlob (base64, type) {
function binaryStringToArrayBuffer (binary) {
let length = binary.length
let buf = new ArrayBuffer(length)
let arr = new Uint8Array(buf)
let i = -1
while (++i < length) {
arr[i] = binary.charCodeAt(i)
}
return buf
}
let parts = [binaryStringToArrayBuffer(atob(base64))]
return type ? new Blob(parts, { type: type }) : new Blob(parts)
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}