From 7a6f8dd6e2a6e670e8806ba3f80922c7b0bf131b Mon Sep 17 00:00:00 2001
From: Chalarangelo <chalarangelo@gmail.com>
Date: Sun, 10 Oct 2021 12:32:58 +0300
Subject: [PATCH] Add JS expression/statement

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 blog_posts/javascript-expression-statement.md | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 blog_posts/javascript-expression-statement.md

diff --git a/blog_posts/javascript-expression-statement.md b/blog_posts/javascript-expression-statement.md
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+---
+title: What is the difference between an expression and a statement in JavaScript?
+type: question
+tags: javascript,type
+authors: chalarangelo
+cover: blog_images/forest-balcony.jpg
+excerpt: JavaScript distinguishes expressions and statements. Learn their differences in this short article.
+firstSeen: 2021-11-07T05:00:00-04:00
+---
+
+JavaScript distinguishes expressions and statements. An **expression** is any valid unit of code that resolves to a value. A **statement** is a unit of code that performs an action. Some examples:
+
+```js
+// Statements
+let x = 0;
+function add(a, b) { return a + b; }
+if (true) { console.log('Hi'); }
+
+// Expressions
+x;          // Resolves to 0
+3 + x;      // Resolves to 3
+add(1, 2);  // Resolves to 3
+```
+
+Anywhere JavaScript expects a statement, you can also write an expression. This kind of statement is called an **expression statement**. Conversely, you cannot write a statement where JavaScript expects an expression.