# Declare a variable using let or const. let myVariable = 'hello'; const myConstant = 42; # Log a message to the console. console.log('Hello, world!'); # Alert a ...

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table of the ...

Go-style defer functionality for JavaScript and TypeScript. Declare cleanups right next to resource acquisition, and they'll execute automatically in the correct order when your function exits.

Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table of the ...