# JavaScript Truthy and Falsy

## Falsy Values

These are considered false:

```javascript
false
0
'' (empty string)
null
undefined
NaN
```

## Truthy Values

Everything else is truthy:

```javascript
true
1
'hello'
[]
{}
```

## Usage

```javascript
if (user) {
  // Runs if user is truthy
}

const result = value || 'default';
```

## Key Takeaway

Falsy values are false, null, undefined, 0, '', NaN. Everything else is truthy. Important for conditionals.

Understand truthy and falsy values in JavaScript. Learn which values are considered true/false.

JavaScript Truthy and Falsy Values

Deep dive into JavaScript, JS, and ECMAScript fundamentals, ES6+, and advanced concepts.

JavaScript Truthy and Falsy Values

JavaScript Truthy and Falsy

Falsy Values

Truthy Values

Usage

Key Takeaway

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