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chore(docs): explaining the ability to export types using the webout() macro

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Allan Bowe
2022-01-09 13:45:28 +00:00
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@@ -237,6 +237,12 @@ By default, special SAS numeric missings (_a-Z) are converted to `null` in the J
```
In this case, special missings (such as `.a`, `.b`) are converted to javascript string values (`'A', 'B'`).
Where an entire column is made up of special missing numerics, there would be no way to distinguish it from a single-character column by looking at the values. To cater for this scenario, it is possible to export the variable types (and other attributes such as label and format) by adding a `showmeta` param to the `webout()` macro as follows:
```sas
%webout(OBJ,a,missing=STRING,showmeta=YES)
```
## Configuration
Configuration on the client side involves passing an object on startup, which can also be passed with each request. Technical documentation on the SASjsConfig class is available [here](https://adapter.sasjs.io/classes/types.sasjsconfig.html). The main config items are: