微信小程序,ArrayBuffer数据怎么处理
时间: 2024-04-22 10:22:24 浏览: 316
在微信小程序中处理ArrayBuffer数据,可以使用wx.arrayBufferToBase64()和wx.base64ToArrayBuffer()这两个API来进行转换。
将ArrayBuffer转换为Base64格式:
const arrayBuffer = new Uint8Array([1, 2, 3]).buffer;
const base64 = wx.arrayBufferToBase64(arrayBuffer);
将Base64格式转换为ArrayBuffer格式:
const base64 = 'AQID';
const arrayBuffer = wx.base64ToArrayBuffer(base64);
另外,如果需要将ArrayBuffer转换为字符串,可以使用TextDecoder API:
const arrayBuffer = new Uint8Array([72, 101, 108, 108, 111]).buffer;
const decoder = new TextDecoder();
const str = decoder.decode(arrayBuffer);
console.log(str); // Hello
如果需要将字符串转换为ArrayBuffer,则可以使用TextEncoder API:
const str = 'Hello';
const encoder = new TextEncoder();
const arrayBuffer = encoder.encode(str).buffer;
console.log(arrayBuffer); // [72, 101, 108, 108, 111]
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