0.0.41 - utils.toNano and utils.fromNano now disallow Number as an ar…

…gument. Please pass numbers as strings or BN objects to avoid precision errors. Please note that the ethjs-unit library erroneously handles Number argument in toWei/fromWei functions (BN and String is OK).

dist/types/utils/common.d.ts

@@ -3,11 +3,11 @@ export declare function sha256(bytes: Uint8Array): Promise<ArrayBuffer>;
 /**
  * Converts the specified amount from coins to nanocoins.
  */
-export declare function toNano(amount: (number | BN | string)): BN;
+export declare function toNano(amount: (BN | string)): BN;
 /**
  * Converts the specified amount from nanocoins to coins.
  */
-export declare function fromNano(amount: (number | BN | string)): string;
+export declare function fromNano(amount: (BN | string)): string;
 /**
  * Converts the specified bytes array to hex string
  * using lookup table.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "tonweb",
-  "version": "0.0.40",
+  "version": "0.0.41",
   "description": "TonWeb - JavaScript API for TON blockchain",
   "main": "src/index.js",
   "types": "dist/types/index.d.ts",

src/index.js

@@ -13,7 +13,7 @@ const {SubscriptionContract} = require("./contract/subscription/index");
 const TransportWebUSB = require("@ledgerhq/hw-transport-webusb").default;
 const TransportWebHID = require("@ledgerhq/hw-transport-webhid").default;
 const BluetoothTransport = require("@ledgerhq/hw-transport-web-ble").default;
-const version = '0.0.40';
+const version = '0.0.41';
 
 class TonWeb {
     constructor(provider) {

src/utils/Utils.js

@@ -26,19 +26,27 @@ function sha256(bytes) {
 
 /**
  * from coins to nanocoins
- * @param amount {number | BN | string}
+ * @param amount {BN | string}
  * @return {BN}
  */
 function toNano(amount) {
+    if (!BN.isBN(amount) && !(typeof amount === 'string')) {
+        throw new Error('Please pass numbers as strings or BN objects to avoid precision errors.');
+    }
+
     return ethunit.toWei(amount, 'gwei');
 }
 
 /**
  * from nanocoins to coins
- * @param amount  {number | BN | string}
+ * @param amount  {BN | string}
  * @return {string}
  */
 function fromNano(amount) {
+    if (!BN.isBN(amount) && !(typeof amount === 'string')) {
+        throw new Error('Please pass numbers as strings or BN objects to avoid precision errors.');
+    }
+
     return ethunit.fromWei(amount, 'gwei');
 }