Kosal Ang
Wed Jan 10 2024
JavaScript's closures and scope are fundamental concepts that significantly impact how code behaves. They play a pivotal role in understanding the language's advanced functionalities. This article aims to elucidate these concepts through clear explanations and practical examples.
let
and const
in ES6, defining variables within blocks like loops or conditionals.1function outerFunction() { 2 let outerVariable = "I am from the outer function"; 3 function innerFunction() { 4 console.log(outerVariable); 5 } 6 return innerFunction; 7} 8const myFunction = outerFunction(); 9myFunction(); // Output: "I am from the outer function" 10
1function addClickListener() { 2 let counter = 0; 3 document.getElementById("myButton").addEventListener("click", function () { 4 counter++; 5 console.log(`Button clicked ${counter} times.`); 6 }); 7} 8addClickListener(); 9
Summarize the significance of understanding closures and scope in JavaScript and encourage further exploration and practice.
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