From 88bff99a40a8095b80db5e7492025617685d5036 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Feje=C5=A1?= <ns.fejes.stefan@gmail.com>
Date: Wed, 18 Jul 2018 11:16:17 +0200
Subject: [PATCH] add glossary/Value-vs-reference

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 glossary/Value-vs-reference.md | 5 +++++
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 create mode 100644 glossary/Value-vs-reference.md

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+### Value vs reference
+
+When passing by value we pass a copy of actual variables in the function as a parameter.
+When passing by reference we pass a memory address of actual variables in function as a parameter ,therefore any modification on parameters inside the function will reflect in the actual variable.
+In JavaScript primitive values are passed by value while objects are passed by reference.