TTwinkalintwinkalp10.hashnode.dev·3d ago · 5 min readHow We Saved $1000/Month on Email — And What It Broke in Production4:00 PM on a Friday, a ticket came in from our highest-paying customer: “None of our staff are receiving your system alerts.” I opened the AWS SES console expecting a quick answer. Instead: no dashboa00
TTwinkalintwinkalp10.hashnode.dev·Aug 29, 2023 · 3 min readClosureFunction along with its lexical scope is known as a closure. Lexical scope is the ability of a function scope to access variables from the parent scope. We call the child function to be lexically bound by that of the parent function. function x() { ...00
TTwinkalintwinkalp10.hashnode.dev·Aug 29, 2023 · 5 min readClassesJavaScript Classes are templates for JavaScript Objects. Use the keyword class to create a class. A JavaScript class is not an object. We have to always add a method named constructor() . Before classes, we used constructor functions to do OOP in Jav...00
TTwinkalintwinkalp10.hashnode.dev·Aug 29, 2023 · 4 min readAsync/Await in JavascriptWhat is synchronous JavaScript? In a synchronous system, tasks are completed one after another. Think if you have only one hand and you need to complete 10 assignments So, you have to complete one assignment at a time. Well, JavaScript is by default ...00
TTwinkalintwinkalp10.hashnode.dev·Aug 29, 2023 · 2 min readHoisting in JavascriptIn JavaScript, hoisting allows you to use functions and variables before they're declared. When the JavaScript engine executes the JavaScript code, it creates the global execution context. The global execution context has two phases: Creation Execu...00
