View this page in the latest version of Appian. toboolean() Function Share Share via LinkedIn Reddit Email Copy Link Print On This Page Function toboolean( value ) Converts a value to Boolean. Parameters Keyword Type Description value Any Type Value to convert. Returns Boolean Usage considerations Understanding results A 0 returns false; all other numbers return true. Strings beginning with t, T, y, Y, or 1 return true; all other strings return false. Using toboolean() with arrays When operating on arrays, it is not necessary to use apply with toboolean. If multiple parameters are passed, or one parameter is an Array, then a Boolean Array is returned. Examples Primitive types Using toboolean() with an integer 1 toboolean(0) Returns false. Using toboolean() with a string 1 toboolean("True") Returns true. Using toboolean() with a null value 1 toboolean(null) Returns null. Lists Using toboolean() with a list of integers 1 toboolean(0,1,0,-1) and 1 toboolean({0,1,0,-1}) Both return {false,true,false,true}. Using toboolean() with a list of strings 1 toboolean("Time", "tango", "true", "t", "T", "yes", "Yes", "Y", "y", "1", "S", "seven", "B", "0", "2", null) Returns {true, true, true, true, true, true, true, true, true, true, false, false, false, false, false, null}. Using toboolean() with an empty list 1 toboolean({}) Returns an empty List of Boolean. Maps Using toboolean() with maps 1 2 3 4 5 6 7 8 9 toboolean( { a!map(key: "key1", value: true()), a!map(key: "key2", value: false()), a!map(key: "key3", value: 0), a!map(key: "key4", value: 1), a!map(key: "key5", value: "Y") }.value ) Returns {true, false, false, true, true}. Using toboolean() with multiple boolean values in a map 1 2 3 4 5 6 7 toboolean( { a!map(key: "key1", value: true), a!map(key: "key2", value: {true, false, true, false}), a!map(key: "key3", value: null), }.value ) Returns {true, true, false, true, false, null}. Feature compatibility The table below lists this function's compatibility with various features in Appian. Feature Compatibility Note Portals Compatible Offline Mobile Compatible Sync-Time Custom Record Fields Compatible Can be used to create a custom record field that only evaluates at sync time. Real-Time Custom Record Fields Incompatible Custom record fields that evaluate in real time must be configured using one or more Custom Field functions. Process Reports Compatible Process Events Compatible Feedback Was this page helpful? SHARE FEEDBACK Loading...