patch 8.2.2291: Vim9: cannot use "null" for v:null
Problem: Vim9: cannot use "null" for v:null.
Solution: Support "null" like "true" and "false". (closes #7495)
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt
index e13863a..b30db0b 100644
--- a/runtime/doc/vim9.txt
+++ b/runtime/doc/vim9.txt
@@ -1,4 +1,4 @@
-*vim9.txt* For Vim version 8.2. Last change: 2021 Jan 02
+*vim9.txt* For Vim version 8.2. Last change: 2021 Jan 03
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -640,11 +640,11 @@
Simple types are string, float, special and bool. For other types |string()|
can be used.
- *false* *true*
-In Vim9 script one can use "true" for v:true and "false" for v:false. When
-converting a boolean to a string "false" and "true" are used, not "v:false"
-and "v:true" like in legacy script. "v:none" and "v:null" are not changed,
-they are only used in JSON.
+ *false* *true* *null*
+In Vim9 script one can use "true" for v:true, "false" for v:false and "null"
+for v:null. When converting a boolean to a string "false" and "true" are
+used, not "v:false" and "v:true" like in legacy script. "v:none" is not
+changed, it is only used in JSON and has no equivalent in other languages.
Indexing a string with [idx] or [idx, idx] uses character indexes instead of
byte indexes. Example: >