我已将我的应用程序从角度4升级到角度6.我收到以下错误.错误发生在行返回data.buffer.这是兼容性问题吗？
error TS2322: Type 'ArrayBuffer | SharedArrayBuffer' is not assignable to type 'Arr
ayBuffer'.
Type 'SharedArrayBuffer' is not assignable to type 'ArrayBuffer'.
Types of property '[Symbol.toStringTag]' are incompatible.
Type '"SharedArrayBuffer"' is not assignable to type '"ArrayBuffer"'.
码
serialize(): ArrayBuffer {
let source: ArrayLike<number>[] = this.contents.map(o => new Uint8Array(o));
let lengths = source.map(o => this.numToArr(o.length));
if (!!this.value) {
const bytes = utf8.toByteArray(JSON.stringify(this.value,null,null));
const dataLength = this.numToArr(bytes.length);
source = [bytes,...source];
lengths = [dataLength,...lengths];
}
const totalLength = source.reduce((acc,o) => acc + o.length,0) + lengths.reduce((acc,0);
const data = new Uint8Array(totalLength);
let offset = 0;
source.forEach((item,index) => {
const prefix = lengths[index];
data.set(prefix,offset);
offset += prefix.length;
data.set(item,offset);
offset += item.length;
});
return data.buffer;
}
解决方法
使用适当的类型铸件如下：
return data.buffer as ArrayBuffer;
或者定义一个可以接受ArrayBuffer或SharedArrayBuffer的变量,如下所示：
pdf: ArrayBuffer | SharedArrayBuffer; ... ... this.pdf = data.buffer; return this.pdf;
希望这可以帮助.
