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## 1.0.2（2025-07-25）
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* 兼容原生鸿蒙
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## 1.0.1（2025-02-10）
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* 兼容所有平台
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{
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"id": "x-base64toarraybuff-s",
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"displayName": "x-base64toarraybuff-s",
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"version": "1.0.0",
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"description": "x-base64toarraybuff-s",
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"keywords": [
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"x-base64toarraybuff-s"
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],
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"repository": "",
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"engines": {
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"HBuilderX": "^3.6.8"
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},
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"dcloudext": {
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"type": "uts",
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"sale": {
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"regular": {
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"price": "0.00"
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},
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"sourcecode": {
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"price": "0.00"
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}
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},
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"contact": {
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"qq": ""
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},
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"declaration": {
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"ads": "",
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"data": "",
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"permissions": ""
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},
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"npmurl": ""
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},
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"uni_modules": {
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"dependencies": [],
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"encrypt": [],
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"platforms": {
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"cloud": {
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"tcb": "u",
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"aliyun": "u",
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"alipay": "u"
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},
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"client": {
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"Vue": {
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"vue2": "u",
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"vue3": "u"
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},
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"App": {
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"app-android": "u",
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"app-ios": "u",
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"app-harmony": "u"
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},
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"H5-mobile": {
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"Safari": "u",
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"Android Browser": "u",
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"微信浏览器(Android)": "u",
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"QQ浏览器(Android)": "u"
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},
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"H5-pc": {
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"Chrome": "u",
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"IE": "u",
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"Edge": "u",
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"Firefox": "u",
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"Safari": "u"
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},
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"小程序": {
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"微信": "u",
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"阿里": "u",
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"百度": "u",
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"字节跳动": "u",
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"QQ": "u",
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"钉钉": "u",
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"快手": "u",
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"飞书": "u",
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"京东": "u"
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},
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"快应用": {
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"华为": "u",
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"联盟": "u"
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}
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}
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}
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}
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}
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# x-base64toarraybuff-s
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### 兼容性
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| Harmony | IOS | Android | WEB | 小程序 |
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| --- | --- | --- | --- | --- |
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| 支持 | 支持 | 支持 | 支持 | 支持 |
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### 开发文档
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这是一个跨平台的base64和ArrayBuffer转换工具，提供了两个主要API：
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#### base64ToArrayBuffer
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将Base64字符串转换为ArrayBuffer。
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**参数：**
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- data: string - 需要转换的Base64字符串
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**返回值：**
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- ArrayBuffer - 转换后的二进制数据
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**示例：**
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```ts
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import { base64ToArrayBuffer } from "@/uni_modules/x-base64toarraybuff-s"
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const base64Str = "SGVsbG8gV29ybGQ="
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const buffer = base64ToArrayBuffer(base64Str)
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```
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#### arrayBufferToBase64
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将ArrayBuffer转换为Base64字符串。
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**参数：**
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- data: ArrayBuffer - 需要转换的二进制数据
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**返回值：**
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- string - 转换后的Base64字符串
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**示例：**
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```ts
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import { arrayBufferToBase64 } from "@/uni_modules/x-base64toarraybuff-s"
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const buffer = new ArrayBuffer(8)
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const base64Str = arrayBufferToBase64(buffer)
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```
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### 使用说明
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1. 使用前，如果是win请先在页面引用，打基座，再编译使用
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2. 如果你是Mac用户不需要打基座，直接引用使用
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3. 如果你是加密插件用户，不管是win,mac都要打基座。
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### 注意事项
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1. 该插件在所有平台（iOS、Android、Web、小程序）上均可用
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2. 转换过程中会自动处理不同平台的实现差异，开发者无需关心具体实现
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3. 建议在处理大量数据时进行适当的性能优化
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import Base64 from "android.util.Base64"
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import ByteBuffer from 'java.nio.ByteBuffer';
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export const base64ToArrayBuffer = (data : string) :ArrayBuffer => {
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return ArrayBuffer.fromByteBuffer(ByteBuffer.wrap(Base64.decode(data, Base64.DEFAULT)))
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}
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export const arrayBufferToBase64 = (data : ArrayBuffer) : string => {
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return Base64.encodeToString(data.toByteBuffer().array(),Base64.DEFAULT)
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}
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{
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"dependencies": {
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"x_library_s": "./lib/x_library_s.har"
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}
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}
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import { util } from "@kit.ArkTS";
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import { BusinessError } from "@kit.BasicServicesKit";
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/**
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* 将base64数据转换为arraybuffer
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* @param data base64数据
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* @returns Promise<ArrayBuffer>
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*/
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function btoa_x(data: string): ArrayBuffer {
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const base64 = new util.Base64Helper();
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const dataSplit = data.split(",");
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const uint8Array = base64.decodeSync(dataSplit.length > 1 ? data.split(",")[1] : data);
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const buffer: ArrayBuffer = uint8Array.buffer.slice(0, uint8Array.byteLength);
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return buffer
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}
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function atob_x(data:ArrayBuffer){
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const base64 = new util.Base64Helper();
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const unit8data = new Uint8Array(data)
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return base64.encodeToStringSync(unit8data)
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}
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export const base64ToArrayBuffer = (data : string) :ArrayBuffer => {
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try {
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return btoa_x(data)
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} catch (error) {
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const e = error as BusinessError;
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console.error("TMUI",e.message)
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return new ArrayBuffer(0)
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}
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}
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export const arrayBufferToBase64 = (data : ArrayBuffer) : string => {
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try {
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return atob_x(data)
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} catch (error) {
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const e = error as BusinessError;
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console.error("TMUI",e.message)
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return ''
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}
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}
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Binary file not shown.
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>NSPrivacyAccessedAPITypes</key>
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<array/>
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<key>NSPrivacyCollectedDataTypes</key>
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<array/>
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<key>NSPrivacyTracking</key>
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<false/>
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<key>NSPrivacyTrackingDomains</key>
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<array/>
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</dict>
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</plist>
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{
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"deploymentTarget": "12"
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}
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import { Data } from 'Foundation';
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export const base64ToArrayBuffer = (data : string) : ArrayBuffer => {
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let dadx = new Data(base64Encoded = data)
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if(dadx == null) return new ArrayBuffer(0)
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return ArrayBuffer.fromData(dadx!)
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}
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export const arrayBufferToBase64 = (data : ArrayBuffer) : string => {
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let dadx = data.toData()
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return dadx.base64EncodedString()
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}
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const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
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let lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
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for (let i = 0; i < chars.length; i++) {
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lookup[chars.charCodeAt(i)] = i;
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}
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export const encode = function (arraybuffer) {
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let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';
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for (i = 0; i < len; i += 3) {
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base64 += chars[bytes[i] >> 2];
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base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
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base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
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base64 += chars[bytes[i + 2] & 63];
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}
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if (len % 3 === 2) {
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base64 = base64.substring(0, base64.length - 1) + '=';
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}
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else if (len % 3 === 1) {
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base64 = base64.substring(0, base64.length - 2) + '==';
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}
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return base64;
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};
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export const decode = function (base64) {
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let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;
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if (base64[base64.length - 1] === '=') {
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bufferLength--;
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if (base64[base64.length - 2] === '=') {
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bufferLength--;
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}
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}
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let arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);
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for (i = 0; i < len; i += 4) {
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encoded1 = lookup[base64.charCodeAt(i)];
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encoded2 = lookup[base64.charCodeAt(i + 1)];
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encoded3 = lookup[base64.charCodeAt(i + 2)];
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encoded4 = lookup[base64.charCodeAt(i + 3)];
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bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
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bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
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bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
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}
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return arraybuffer;
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};
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import {decode,encode} from "./base64ToArraybuffer.uts"
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export const base64ToArrayBuffer = (data : string) :ArrayBuffer => {
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return decode(data)
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}
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export const arrayBufferToBase64 = (data : ArrayBuffer) : string => {
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return encode(data)
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}
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@@ -0,0 +1,43 @@
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const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
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let lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
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for (let i = 0; i < chars.length; i++) {
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lookup[chars.charCodeAt(i)] = i;
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}
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export const encode = function (arraybuffer) {
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let bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';
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for (i = 0; i < len; i += 3) {
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base64 += chars[bytes[i] >> 2];
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base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
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base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
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base64 += chars[bytes[i + 2] & 63];
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}
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if (len % 3 === 2) {
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base64 = base64.substring(0, base64.length - 1) + '=';
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}
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else if (len % 3 === 1) {
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base64 = base64.substring(0, base64.length - 2) + '==';
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}
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return base64;
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};
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export const decode = function (base64) {
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let bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;
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if (base64[base64.length - 1] === '=') {
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bufferLength--;
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if (base64[base64.length - 2] === '=') {
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bufferLength--;
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}
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}
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let arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);
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for (i = 0; i < len; i += 4) {
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encoded1 = lookup[base64.charCodeAt(i)];
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encoded2 = lookup[base64.charCodeAt(i + 1)];
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encoded3 = lookup[base64.charCodeAt(i + 2)];
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encoded4 = lookup[base64.charCodeAt(i + 3)];
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bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
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bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
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bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
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}
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return arraybuffer;
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};
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@@ -0,0 +1,9 @@
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import {decode,encode} from "./base64ToArraybuffer.uts"
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export const base64ToArrayBuffer = (data : string) :ArrayBuffer => {
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return decode(data)
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}
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export const arrayBufferToBase64 = (data : ArrayBuffer) : string => {
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return encode(data)
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}
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