@microbit/microbit-fs
Version:
Manipulate files in a micro:bit MicroPython Intel Hex file.
61 lines • 1.83 kB
JavaScript
;
/**
* General utilities.
*
* (c) 2019 Micro:bit Educational Foundation and the microbit-fs contributors.
* SPDX-License-Identifier: MIT
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.areUint8ArraysEqual = exports.concatUint8Array = void 0;
exports.strToBytes = strToBytes;
exports.bytesToStr = bytesToStr;
/**
* Converts a string into a byte array of characters.
* @param str - String to convert to bytes.
* @returns A byte array with the encoded data.
*/
function strToBytes(str) {
const encoder = new TextEncoder();
return encoder.encode(str);
}
/**
* Converts a byte array into a string of characters.
* @param byteArray - Array of bytes to convert.
* @returns String output from the conversion.
*/
function bytesToStr(byteArray) {
const decoder = new TextDecoder();
return decoder.decode(byteArray);
}
/**
* Concatenates two Uint8Arrays.
*
* @param first - The first array to concatenate.
* @param second - The second array to concatenate.
* @returns New array with both inputs concatenated.
*/
const concatUint8Array = (first, second) => {
const combined = new Uint8Array(first.length + second.length);
combined.set(first);
combined.set(second, first.length);
return combined;
};
exports.concatUint8Array = concatUint8Array;
/**
* Compares two Uint8Array.
*
* @param first - The first array to compare.
* @param second - The second array to compare.
* @returns Boolean indicating if they are equal.
*/
const areUint8ArraysEqual = (first, second) => {
if (first.length !== second.length)
return false;
for (let i = 0; i < first.length; i++) {
if (first[i] !== second[i])
return false;
}
return true;
};
exports.areUint8ArraysEqual = areUint8ArraysEqual;
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