How to Callback?

How do I make Callback to handle errors in the javascript code

var JavaScriptObfuscator = require('javascript-obfuscator').obfuscate;
//Error in console.log and I have to handle it. How to do?
var mycode='function hai(){console.log("hello world";} hai();';

var obfuscationResult = JavaScriptObfuscator(mycode,options,function(err, obfuscated){
if(err){
console.log("some error occurred");
}
else{
console.log("cool...");
}
})

the above code is not working to handle errors. Thanks in Advance…

[MariSelvanDev]

Thank you so much it worked.

[lock[bot]]

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