var x = (function () {
some code
})();
What this kind of expression called, what does it mean? This part defined a object and include some function inside. I am confused about why there need to be a () in the end.
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1x is the return value of the function. the () in the end is just to execute the function. – Surely May 23 '17 at 16:00
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It's called an IIFE, and the result it returns is assigned to the variable `x`. – adeneo May 23 '17 at 16:01
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Thank you so much! – user7227316 May 23 '17 at 16:06
1 Answers
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(function () {
some code
})();
Above code is self invoking function (IIFE). var x= IIFE will assign the value reutrned by IIFE to x.
Here is great post explaining IIFE http://benalman.com/news/2010/11/immediately-invoked-function-expression/
Kumar Nitesh
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