javascript - What is difference between these two self invoking functions -

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• location of parenthesis auto-executing anonymous javascript functions? 4 answers

both of these functions below self-invoking functions. can explain me difference between these two? i've looked around lot of places. i've not been able find anything.

first type

(function(){     console.log('hello world'); }()); 

second type

(function(){     console.log('hello world'); })(); 

they're same. they're 2 different similar ways force js engine correctly interpret function expression.

another way example

+function(){     console.log('hello world'); }()  

the accepted convention put parenthesis around function expression :

(function(){     console.log('hello world'); })();