Version with audio and buzz

src/helpers/utils.ts

@@ -0,0 +1,42 @@
+/**
+ * Pads number/string with zeros and returns string of required length.
+ * @example `zeroPad('101', 8)` - converts boolean (string) to 8-sized byte (string)
+ * @param num Number to pad
+ * @param length Total length after padding
+ * @returns zeropadded string
+ */
+export function zeroPad(num: number | string, length: number): string {
+  return String(num).padStart(length, "0");
+}
+
+/**
+ * Gets bit value from binary string
+ * @param str Binary string
+ * @param bitIndex Index of bit to get
+ * @returns bit value
+ */
+export function getBit(str: string, bitIndex: number): number {
+  const value = str[bitIndex];
+  if (value == undefined) {
+    throw new RangeError(`Index:${bitIndex} not found in ${str}`);
+  }
+  return Number(value);
+}
+
+/**
+ * Gets bit value as boolean from binary string
+ * @param str Binary string
+ * @param bitIndex Index of bit to get
+ * @returns bit value as boolean
+ */
+export function getBitAsBoolean(str: string, bitIndex: number): boolean {
+  return !!getBit(str, bitIndex);
+}
+
+export function hexStringToNumberArray(rawString: string) {
+  return rawString.split("-").map((val) => parseInt(val, 16));
+}
+
+export function hexArrayToNumberArray(rawStrings: string[]) {
+  return rawStrings.map((val) => parseInt(val, 16));
+}