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| _Types and Values_ | |
| # Bottom | |
| Specifying duplicate fields with conflicting values results in an error, | |
| denoted `_|_`. | |
| Technically speaking, bottom is just a value like any other. | |
| But for all practical purposes it is okay to think of the bottom value | |
| as an error. | |
| Note that an error is different from `null`: `null` is a valid JSON value, | |
| whereas `_|_` is not. | |
| <!-- CUE editor --> | |
| ``` | |
| a: 4 | |
| a: 5 | |
| l: [ 1, 2 ] | |
| l: [ 1, 3 ] | |
| ``` | |
| <!-- result --> | |
| ``` | |
| a: _|_ | |
| l: _|_ | |
| ``` |