Determine if a value is empty

Synopsis

Declared in <mrdocs/Handlebars/Engine.hpp>

bool
isEmpty(dom::Value const& arg);

Description

This is used by the built‐in if and with helpers to control their execution flow.

The Handlebars definition of empty is any of:

  • Array with length 0

  • falsy values other than 0

This is intended to match the Mustache Behaviour.

Return Value

True if the value is empty, false otherwise

Parameters

Name

Description

arg

The value to test

See Also

https://mustache.github.io/mustache.5.html#Sections

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