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/**
* Make sure two Uint8Arrays are deeply equivalent
*/
export function areEqual(array1: Uint8Array, array2: Uint8Array): boolean {
if (array1.length != array2.length) {
return false;
}
return array1.every((val, i) => val === array2[i]);
}
/**
* Convert a Uint8Array to Hexadecimal.
*
* A replacement for `Buffer.toString('hex')`
*/
export function toHex(array: Uint8Array): string {
const hexParts = Array.from(array, i => i.toString(16).padStart(2, "0"));
// adce000235bcc60a648b0b25f1f05503
return hexParts.join('');
}
/**
* Convert a Uint8Array to Base64.
*
* A replacement for `Buffer.toString('base64')`
*/
export function toBase64(array: Uint8Array): string {
let str = '';
for (const charCode of array) {
str += String.fromCharCode(charCode);
}
const base64String = btoa(str);
return base64String;
}
/**
* Combine multiple Uint8Arrays into a single Uint8Array
*/
export function concat(arrays: Uint8Array[]): Uint8Array {
let pointer = 0;
const totalLength = arrays.reduce((prev, curr) => prev + curr.length, 0);
const toReturn = new Uint8Array(totalLength);
arrays.forEach((arr) => {
toReturn.set(arr, pointer);
pointer += arr.length;
});
return toReturn;
}
/**
* Convert an ASCII string to Uint8Array
*/
export function fromString(value: string): Uint8Array {
return Uint8Array.from(value.split("").map(x => x.charCodeAt(0)));
}
export default {
areEqual,
toHex,
toBase64,
concat,
fromString,
};
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