From what I've read Function declaration and Function expression are only different in that declarations are being hoisted while expressions are not. Several examples in this tutorial use this format to highlight the anonymous aspect … of immediately invoked function expressions (IIFE Immediately invoked function expression - Wikipedia There is no function name or function variable (delegate instance) name involved at design time. Protect your global environment from being polluted by your code with immediately-invoked function expressions (IIFE). 공유하기 . The parameters (or bound variables), and; The function body. An IIFE (Immediately Invoked Function Expression) is a JavaScript function that runs as soon as it is defined. If we take the above definition into account then what about the below scenario? We are running a function as soon as it is defined. There is no statement between the definition and the call. Does that make an IIFE? Functions, when invoked, create their own execution context, a private … The IIFE or immediately-invoked function expression, is one of the ways to declare a javascript function, to understand better how a variable can receive a value of a IIFE before we need understand some concepts. IIFEs are very useful because they don’t pollute the global object, and they are a simple way to isolate variables declarations. Immediately invoked function expression Immediately Invoked Function Expression
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