Работа над BookManager

client/share/utils.js

@@ -1,3 +1,19 @@
 export function sleep(ms) {
     return new Promise(resolve => setTimeout(resolve, ms));
 }
+
+export function stringToHex(str) {
+    let result = '';
+    for (let i = 0; i < str.length; i++) {
+        result += str.charCodeAt(i).toString(16);
+    }
+    return result;
+}
+
+export function hexToString(str) {
+    let result = '';
+    for (let i = 0; i < str.length; i += 2) {
+        result += String.fromCharCode(parseInt(str.substr(i, 2), 16));
+    }
+    return result;
+}