tack-up-now/b64ToUInt8.ts

13 lines
415 B
TypeScript

export default function urlB64ToUint8Array(base64String: string) {
const padding = "=".repeat((4 - (base64String.length % 4)) % 4)
const base64 = (base64String + padding).replace(/\-/g, "+").replace(/_/g, "/")
const rawData = atob(base64)
const outputArray = new Uint8Array(rawData.length)
for (let i = 0; i < rawData.length; ++i) {
outputArray[i] = rawData.charCodeAt(i)
}
return outputArray
}