How to declare function parameter of type UInt8Array in TypeScript?
import * as fs from "fs";
fs.readFile(fileName, (err: string, data: UInt8Array) => {
if (err) {
return console.error(err);
}
console.log("file text: " + data.toString());
});
I'm having an error:
error TS2304: Cannot find name 'UInt8Array'
Thanks
Your error message indicates a typo, i.e.
error TS2304: Cannot find name 'UInt8Array'
complains about UInt8Array. But the name you're looking for is probably Uint8Array, with a lowercase i.
The following instantiations work in TypeScript 1.6 (the latest stable version at the time of writing):
let t01 = new Uint8Array([1, 2, 3, 4]);
let t02 = new Int8Array([1, 2, 3, 4]);
let t03 = new Uint8Array([1, 2, 3, 4]);
let t04 = new Uint8ClampedArray([1, 2, 3, 4]);
let t05 = new Int16Array([1, 2, 3, 4]);
let t06 = new Uint16Array([1, 2, 3, 4]);
let t07 = new Int32Array([1, 2, 3, 4]);
let t08 = new Uint32Array([1, 2, 3, 4]);
let t09 = new Float32Array([1.5, 2.5, 3.5, 4.5]);
let t10 = new Float64Array([1.5, 2.5, 3.5, 4.5]);
let arrayBuffer = new ArrayBuffer(16);
