Truthy and Falsy Values

JavaScript has a concept of truthy and falsy values. These are values that behave as either or true or false, but aren't necessarily of the boolean type.

Examples of falsy values are:

• false
• 0
• '' or "" (empty string)
• null
• undefined
• NaN

Examples of truthy values are:

• Basically everything else
• true
• '0'
• 'false'
• []
• {}
• function () {} (empty function)
• Most numbers, like 1 or 2 or 100 for example
• Strings that aren't empty