Fix unkown nodejs version (#123)

bilby91 · jdalton · commit c4602c03296f · 2017-03-01T12:38:21.000-08:00
When running in react-native, the version property is no available, this
fix will make the library not crash in those scenarios.
diff --git a/platform.js b/platform.js
@@ -772,7 +772,8 @@
             name = 'Node.js';
             arch = data.arch;
             os = data.platform;
-            version = /[\d.]+/.exec(data.version)[0];
+            version = /[\d.]+/.exec(data.version)
+            version = version ? version[0] : 'unknown';
           }
         }
         else if (rhino) {

Original file line number	Diff line number	Diff line change
`@@ -772,7 +772,8 @@`
`772`	`772`	`name = 'Node.js';`
`773`	`773`	`arch = data.arch;`
`774`	`774`	`os = data.platform;`
`775`		`- version = /[\d.]+/.exec(data.version)[0];`
	`775`	`+ version = /[\d.]+/.exec(data.version)`
	`776`	`+ version = version ? version[0] : 'unknown';`
`776`	`777`	`}`
`777`	`778`	`}`
`778`	`779`	`else if (rhino) {`