From 93b11f7de37266aa0b753544b6d197a498e6f8d9 Mon Sep 17 00:00:00 2001
From: mryouse
Date: Thu, 12 May 2022 02:59:46 +0000
Subject: progress 5/11

---
 README.md | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

(limited to 'README.md')

diff --git a/README.md b/README.md
index a7e48be..ec1f0d0 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,14 @@
  - `(concat [arg1 :string] [arg2 :string]) => :string`
 
 ### flow control
- - `(if [cond :bool] [t-branch :expr] [f-branch :expr]) => :any`
+ - `(if [cond :bool] [t-branch :any] [[f-branch :any]]) => :any`
+
+### type checking
+ - `(string? [arg :any]) => :bool`
+ - `(int? [arg :any]) => :bool`
+ - `(float? [arg :any]) => :bool`
+ - `(number? [arg :any]) => :bool ; returns #true for :int or :float`
+ - `(bool? [arg :any]) => :bool`
 
 ### other
  - pretty much nothing else
@@ -47,7 +54,7 @@
 
 ### flow control
 - [x] if
-- [ ] if with empty else
+- [x] if with empty else
 - [ ] branch
 
 ### lists
-- 
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