reuse errors.JS and hash.JS

from https://codeberg.org/buzzcode2007/FCC-Project-URLShortener/src/branch/main/scripts/utilities

scripts/utilities/hash.JS

@@ -0,0 +1,38 @@
+class Hash {
+     #data;
+
+     constructor(DATA, METHOD) {
+          this.#data = DATA;
+          this.algorithm = (METHOD) ? METHOD : "SHA-512";
+          this.arrayBuffer = crypto.subtle.digest(this.algorithm, (new TextEncoder()).encode(DATA))
+     };
+
+     /* 
+     Represent the hash in another format. 
+
+     @param {string} TYPE the output format
+     @return {object} the converted hash
+     */
+     async convert(TYPE) {
+          if (TYPE) {
+               switch (TYPE) {
+                    case `Uint8Array`:
+                         this[TYPE] = new Uint8Array(await this.arrayBuffer);
+                         break;
+                    case `Array`: 
+                         this[TYPE] = Array.from(new Uint8Array(await this.arrayBuffer));
+                         break;
+                    case `Number`: 
+                         this[TYPE] = parseInt((Array.from(new Uint8Array(await this.arrayBuffer))).join());
+                         break;
+                    case `String`: 
+                         this[TYPE] = Array.from(new Uint8Array(await this.arrayBuffer)).join(``);
+               };
+     
+               return(this[TYPE])
+          }
+     }
+}
+
+
+module.exports = Hash;