Updated compile option lib to es2017

changed to use padStart on convert.ts

Author: rg911

src/core/format/Convert.ts

@@ -170,7 +170,7 @@ export class Convert {
         for (let i = 0; i < rawString.length; i++) {
             if (rawString.charCodeAt(i) < 16) {
                 // Add insignificant zero for control chars (0x00 - 0x0f)
-                result += '0' + rawString.charCodeAt(i).toString(16);
+                result += rawString.charCodeAt(i).toString(16).padStart(2, '0');
             } else {
                 result += rawString.charCodeAt(i).toString(16);
             }

src/core/format/Utilities.ts

@@ -133,7 +133,7 @@ export const split = (name, processor) => {
 
 export const generateNamespaceId = (parentId, name) => {
     const hash = sha3_256.create();
-    hash.update(Uint32Array.from(parentId).buffer);
+    hash.update(Uint32Array.from(parentId).buffer as any);
     hash.update(name);
     const result = new Uint32Array(hash.arrayBuffer());
     // right zero-filling required to keep unsigned number representation

test/core/format/IdGenerator.spec.ts

@@ -143,7 +143,7 @@ const mosaicTestVector = {
 describe('id generator', () => {
     function generateNamespaceId(parentId, name) {
         const hash = sha3_256.create();
-        hash.update(Uint32Array.from(parentId).buffer);
+        hash.update(Uint32Array.from(parentId).buffer as any);
         hash.update(name);
         const result = new Uint32Array(hash.arrayBuffer());
         // right zero-filling required to keep unsigned number representation

tsconfig.json

@@ -13,7 +13,7 @@
     "outDir": "dist",
     "allowJs": false,
     "lib": [
-      "es2016",
+      "es2017",
       "dom"
     ],
     "typeRoots": [