JavaScript Closures Explained Like You're Learning Them for the First Time
The article explains JavaScript closures in a simple manner, illustrating how they allow functions to remember variables from their outer scope. It provides examples, such as a counter and a bank account, to demonstrate how closures work in practice. The concept is broken down into easy-to-understand terms, making it accessible for beginners.
- ▪Closures allow functions to remember variables from their outer scope even after the outer function has finished executing.
- ▪An example of a counter function illustrates how closures maintain state between function calls.
- ▪The article also discusses using closures to create private variables, as seen in a bank account example.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3868089) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Anshul Sharma Posted on May 30 JavaScript Closures Explained Like You're Learning Them for the First Time #javascript #frontend JavaScript Closures Explained Like You're Learning Them for the First Time Have You Ever Wondered How This Works? Imagine you have a function: function createCounter() { let count = 0; return function () { count++; console.log(count); }; } const counter = createCounter(); counter(); counter(); counter(); Enter fullscreen mode Exit fullscreen mode Output: 1…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
