Snippet

Truthy and Falsy Values

JavaScript evaluates non-boolean values as 'truthy' or 'falsy' in conditions. An empty string is always considered falsy.

snippet.js

javascript

const username = "";
if (!username) {
  console.log("No name provided");
}

nodejs

Breakdown

const username = "";

Initializes a variable with an empty string.

if (!username)

The '!' operator flips the falsy empty string to true, triggering the block.