Added BigInt support. Closes #54 (#75)

README.md

@@ -6,10 +6,11 @@
 
 Node.js version uses the Buffer.from(objectToString) method to convert the object's string representation to a buffer, and then it uses the byteLength property to obtain the buffer size in bytes.
 
-### Complex types support
+### Standard built in types support
 
 - Map
 - Set
+- BigInt
 
 ### Get size of a JavaScript object in Bytes - Browser
 
@@ -47,7 +48,7 @@ Please note, that V8 which compiles the JavaScript into native machine code, is
 import sizeof from 'object-sizeof'
 // const sizeof = require("object-sizeof")
 console.log("Object { abc: 'def' } in bytes: " + sizeof({ abc: 'def' })) // "Object { abc: 'def' } in bytes: 13"
-console.log("Integer 12345 in bytes: " + sizeof(12345)) // "Integer 12345 in bytes: 8"
+console.log('Integer 12345 in bytes: ' + sizeof(12345)) // "Integer 12345 in bytes: 8"
 ```
 
 ### Licence

indexv2.js

@@ -57,6 +57,8 @@ function objectSizeBrowser (obj) {
       } else {
         bytes += (obj.toString().length - 8) * ECMA_SIZES.STRING
       }
+    } else if (typeof value === 'bigint') {
+      bytes += Buffer.from(value.toString()).byteLength
     } else if (typeof value === 'object' && objectList.indexOf(value) === -1) {
       objectList.push(value)
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "object-sizeof",
-  "version": "2.2.0",
+  "version": "2.3.0",
   "description": "Sizeof of a JavaScript object in Bytes",
   "main": "indexv2.js",
   "scripts": {

test/test.js

@@ -87,4 +87,8 @@ describe('sizeof', () => {
     biggerSet.add('some text') // Set(3) { 1, 5, 'some text' }
     sizeof(biggerSet).should.be.above(sizeof(smallerSet))
   })
+
+  it('BigInt support', () => {
+    sizeof(BigInt(21474836480)).should.equal(11)
+  })
 })