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Overview

The Bool Block is used to output a boolean constant or convert an input value into a boolean. It’s particularly useful when you need to create a boolean value for use in other blocks, such as the If Block or If/Else Block.
Bool Block Screenshot

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Inputs

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Input
any
The value to be converted to a boolean. This input is only available if “Use Value Input” is enabled.

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Outputs

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Value
boolean
The boolean value. If “Use Value Input” is enabled, this will be the input value converted to a boolean. Otherwise, outputs the constant value specified in settings.

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Editor Settings

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Value
boolean
default:false
The constant boolean value to output. This setting is only available if “Use Value Input” is disabled.
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Use Value Input
boolean
default:false
If enabled, the block will convert an input value to a boolean. If disabled, the block will output the constant boolean value specified in the Value setting.
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Width
number
default:130
The width of the block in pixels.
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Hidden
boolean
default:true
Whether the block is hidden in the block menu.

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Conversion Rules

The Bool Block follows JavaScript’s rules for truthy and falsy values when converting input values to booleans. If no input is connected when “Use Value Input” is enabled, it will fall back to using the Value setting.

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Example: Using a Constant Boolean Value

  1. Add a Bool Block to your flow.
  2. Set the Value setting to true.
  3. Run the flow. The Value output of the Bool Block will be true.

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Example: Converting an Input to a Boolean

  1. Add a Bool Block to your flow.
  2. Enable the Use Value Input setting.
  3. Add a Text Block to your flow and set the text to "Hello".
  4. Connect the output of the Text Block to the Input of the Bool Block.
  5. Run the flow. The Value output of the Bool Block will be true, because the string "Hello" is a truthy value in JavaScript.

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Error Handling

The Bool Block cannot error under normal circumstances. If “Use Value Input” is enabled and no input is connected, the block will fall back to using the Value setting.

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FAQ

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See Also