--- title: compare.Conditional description: Returns one of two arguments depending on the value of the control argument. categories: [] keywords: [] action: aliases: [cond] related: - functions/compare/Default returnType: any signatures: [compare.Conditional CONTROL ARG1 ARG2] aliases: [/functions/cond] --- The CONTROL argument is a boolean value that indicates whether the function should return ARG1 or ARG2. If CONTROL is `true`, the function returns ARG1. Otherwise, the function returns ARG2. ```go-html-template {{ $qty := 42 }} {{ cond (le $qty 3) "few" "many" }} → many ``` The CONTROL argument must be either `true` or `false`. To cast a non-boolean value to boolean, pass it through the `not` operator twice. ```go-html-template {{ cond (42 | not | not) "truthy" "falsy" }} → truthy {{ cond ("" | not | not) "truthy" "falsy" }} → falsy ``` {{% note %}} Unlike [ternary operators] in other languages, the `cond` function does not perform [short-circuit evaluation]. The function evaluates both ARG1 and ARG2, regardless of the CONTROL value. [short-circuit evaluation]: https://en.wikipedia.org/wiki/Short-circuit_evaluation [ternary operators]: https://en.wikipedia.org/wiki/Ternary_conditional_operator {{% /note %}} Due to the absence of short-circuit evaluation, these examples throw an error: ```go-html-template {{ cond true "true" (div 1 0) }} {{ cond false (div 1 0) "false" }} ```