@mt-kit/utils/dist/array-buffer-to-base64/index.js

一个常用的工具库

/**
 * 将ArrayBuffer转换为Base64字符串
 * @param buffer ArrayBuffer
 * @returns Base64字符串，失败时返回空字符串
 */
export default function arrayBufferToBase64(buffer) {
    try {
        if (!buffer || !(buffer instanceof ArrayBuffer)) {
            console.warn("提供的 ArrayBuffer 无效");
            return "";
        }
        const bytes = new Uint8Array(buffer);
        let binary = "";
        // 使用String.fromCharCode，安全且高效
        for (const byte of bytes) {
            // eslint-disable-next-line unicorn/prefer-code-point
            binary += String.fromCharCode(byte);
        }
        return btoa(binary);
    }
    catch (error) {
        console.warn("Base64 编码失败:", error);
        return "";
    }
}
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