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35 lines
758 B
Markdown
35 lines
758 B
Markdown
---
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title: not
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description: Returns the boolean negation of its single argument.
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categories: []
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keywords: []
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action:
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aliases: []
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related:
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- functions/go-template/and
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- functions/go-template/or
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returnType: bool
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signatures: [not VALUE]
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---
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Unlike the `and` and `or` operators, the `not` operator always returns a boolean value.
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```go-html-template
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{{ not true }} → false
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{{ not false }} → true
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{{ not 1 }} → false
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{{ not 0 }} → true
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{{ not "x" }} → false
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{{ not "" }} → true
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```
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Use the `not` operator, twice in succession, to cast any value to a boolean value. For example:
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```go-html-template
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{{ 42 | not | not }} → true
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{{ "" | not | not }} → false
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```
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{{% include "functions/go-template/_common/text-template.md" %}}
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