a2702f6d
 刘淇
巡查计划
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export function ArrayBufferToBase64 (buffer) {
var binary = '';
var bytes = new Uint8ClampedArray(buffer);
for (var len = bytes.byteLength, i = 0; i < len; i++) {
binary += String.fromCharCode(bytes[i]);
}
return btoa(binary);
}
export function Base64ToUint8ClampedArray(base64String) {
const padding = '='.repeat((4 - base64String.length % 4) % 4);
const base64 = (base64String + padding)
.replace(/\-/g, '+')
.replace(/_/g, '/');
const rawData = atob(base64);
const outputArray = new Uint8ClampedArray(rawData.length);
for (let i = 0; i < rawData.length; ++i) {
outputArray[i] = rawData.charCodeAt(i);
}
return outputArray;
}
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