From bc5830ca3cadaa89f7d0a262b610c23af6782e18 Mon Sep 17 00:00:00 2001
From: Daniel Perez <daniel@perez.sh>
Date: Fri, 26 Jul 2024 19:09:07 +0100
Subject: [PATCH] Add docs for underscore value

---
 docs/src/SUMMARY.md                                |  2 +-
 .../{builtin_functions.md => builtin_values.md}    | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)
 rename docs/src/{builtin_functions.md => builtin_values.md} (97%)

diff --git a/docs/src/SUMMARY.md b/docs/src/SUMMARY.md
index 3b92e8c..bbd9688 100644
--- a/docs/src/SUMMARY.md
+++ b/docs/src/SUMMARY.md
@@ -18,5 +18,5 @@
 
 # Reference
 
-- [Builtin values](./builtin_functions.md)
+- [Builtin values](./builtin_values.md)
 - [Builtin methods](./builtin_methods.md)
diff --git a/docs/src/builtin_functions.md b/docs/src/builtin_values.md
similarity index 97%
rename from docs/src/builtin_functions.md
rename to docs/src/builtin_values.md
index ece2a5d..61cdb4e 100644
--- a/docs/src/builtin_functions.md
+++ b/docs/src/builtin_values.md
@@ -1,6 +1,18 @@
 # Builtin values
 
-## Global functions
+## Globals
+
+### `_`
+
+The underscore `_` variable stores the result of the last expression evaluated.
+
+```javascript
+>> 1 + 1
+2
+>> _
+2
+```
+
 
 ### `keccak256(bytes data) -> bytes32`