javascript - Alternative syntax for self-invoking function? -

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this question has answer here:

while writing javascript course coworkers, accidently discovered alternative syntax self-invoking function. know it, there specifics ? wasn't able find documentation it.

code : classic syntax

    (function(){       console.log("i'm self-invoked!");     })();

alternate syntax

    (function(){       console.log("me too!");     }());

thanks hints !

the 2 identical in meaning.

in both, ( @ start symbols start of expression. indicates start of a function expression intend invoke. invoke it. difference subtle , should not matter @ all, let's explore it:

(function(){   console.log("i'm self-invoked!"); })();

here, ( tell compiler it's start of expression, compiler evaluates expression (a function expression in case) , invokes (outside expression).

(function(){   console.log("me too!"); }());

here - invokation pattern ( () ) part of expression.


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