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-rw-r--r--book/src/filters.md4
1 files changed, 3 insertions, 1 deletions
diff --git a/book/src/filters.md b/book/src/filters.md
index 47fafdb..db660a2 100644
--- a/book/src/filters.md
+++ b/book/src/filters.md
@@ -262,13 +262,15 @@ Enabling the `serde-json` feature will enable the use of the `json` filter.
This will output formatted JSON for any value that implements the required
`Serialize` trait.
-```
+```jinja
{
"foo": "{{ foo }}",
"bar": {{ bar|json }}
}
```
+For compatibility with Jinja, `tojson` can be used in place of `json`.
+
## The `yaml` filter
Enabling the `serde-yaml` feature will enable the use of the `yaml` filter.