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immediately invoked function expression

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Defeated Dogfish answered on July 4, 2020 Popularity 10/10 Helpfulness 5/10

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immediately invoked function expression

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(function () {
    var aName = "Barry";
})();
// Variable aName is not accessible from the outside scope
aName // throws "Uncaught ReferenceError: aName is not defined"

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: developer.mozilla.org

Tags: function-expression javascript

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Contributed on Jul 04 2020

Defeated Dogfish

0 Answers Avg Quality 2/10

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Immediately-Invoked Function javascript

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(() => {
  /* */
})()

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: flaviocopes.com

Tags: function functio

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Contributed on Oct 13 2020

Xerothermic Xenomorph

0 Answers Avg Quality 2/10

javascript Immediately Invoked Function Expression

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result = (function(a, b){
    return a - b;
})(100, 42);

console.log(result); // 58

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Source: Grepper

Tags: function-expression func

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Contributed on Aug 10 2020

experimental

0 Answers Avg Quality 2/10

Immediately-Invoked Function javascript

Comment

(function() {
  /* */
})()

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: flaviocopes.com

Tags: function functio

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Contributed on Oct 13 2020

Xerothermic Xenomorph

0 Answers Avg Quality 2/10

Immediately Invoked Function Expression (IIFE)

Comment

function celebrityIDCreator (theCelebrities) {
    var i;
    var uniqueID = 100;
    for (i = 0; i < theCelebrities.length; i++) {
        theCelebrities[i]["id"] = function (j)  { // the j parametric variable is the i passed in on invocation of this IIFE
            return function () {
                return uniqueID + j; // each iteration of the for loop passes the current value of i into this IIFE and it saves the correct value to the array
            } () // BY adding () at the end of this function, we are executing it immediately and returning just the value of uniqueID + j, instead of returning a function.
        } (i); // immediately invoke the function passing the i variable as a parameter
    }

    return theCelebrities;
}

var actionCelebs = [{name:"Stallone", id:0}, {name:"Cruise", id:0}, {name:"Willis", id:0}];

var createIdForActionCelebs = celebrityIDCreator (actionCelebs);

var stalloneID = createIdForActionCelebs [0];
console.log(stalloneID.id); // 100

var cruiseID = createIdForActionCelebs [1];console.log(cruiseID.id); // 101

Popularity 6/10 Helpfulness 1/10 Language javascript

Source: javascriptissexy.com

Tags: function-expression javascript javascri

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Contributed on Jul 26 2023

Rasaal Ahmad

0 Answers Avg Quality 2/10

immediately invoked function expression

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