F

false reserved word

The false value is one of the two immutable boolean values. The false value is falsy.

The false value can be produced by a relational operator.

false literal

The false literal is a convenient way to access the false value.

var found = false;

falsy

Every value is either truthy or falsy. These are the only values that are falsy:

All other values, including empty objects and empty arrays, are truthy.

A falsy value can have consequences:

filter

filter array prototype function

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finally reserved word

See try statement.

floor

floor Math function

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for reserved word

for in statement

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for statement

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forEach

forEach array prototype function

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Example:

free variable

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freeze

freeze Object function

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fromCharCode

fromCharCode String function

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function reserved word

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function body

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Function global function

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function literal

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function statement

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