What is the difference between `const`, `let`, and `var`?

The distinction between const, let, and var is fundamental in JavaScript and relates to variable declaration, scope, and reassignment capabilities. The chosen answer reflects the accurate concepts clearly.

const is specifically used to declare variables that are intended to remain constant, meaning that once a value is assigned, it cannot be reassigned. However, it's crucial to note that const only protects the variable binding and not the actual value itself; for instance, if the value is an object or array, its properties can still be altered.

let, on the other hand, introduces block scope to JavaScript. This means that variables declared with let are confined to the block in which they are defined, making them ideal for preventing variable hoisting issues in loops and conditional statements.

var is function-scoped, which means that when it is declared inside a function, it is accessible throughout the entire function, regardless of block constructs like loops or conditionals. This broader scope can lead to unintentional behaviors, particularly in larger codebases.

By clarifying these characteristics, it becomes evident why the choice identifies const as for constants, let as block-scoped, and var as function-sc