From 1570088c67b60712cacef96f4aeb487a40e403c9 Mon Sep 17 00:00:00 2001
From: Aaron LI <aaronly.me@gmail.com>
Date: Mon, 2 May 2016 15:10:32 +0800
Subject: _zsh/40-functions.zsh: add "exists()"

---
 _zsh/40-functions.zsh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/_zsh/40-functions.zsh b/_zsh/40-functions.zsh
index 46da01c..cd9ebc9 100644
--- a/_zsh/40-functions.zsh
+++ b/_zsh/40-functions.zsh
@@ -4,6 +4,11 @@
 # execute 'functions <func_name>' to show function details.
 #
 
+function exists() {
+    which $1 &> /dev/null
+}
+
+
 function zsh_recompile() {
     autoload -U zrecompile
     rm -f ~/.zsh/*.zwc
-- 
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