freeCodeCamp/guide/english/certifications/javascript-algorithms-and-d.../basic-javascript/understanding-case-sensitiv.../index.md

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2018-10-12 19:37:13 +00:00
---
title: Understanding Case Sensitivity in Variables
---
## Understanding Case Sensitivity in Variables
A popular programming norm is to use <strong>Camel case</strong> when creating variable names. Notice the first word is lowercase and every following word is uppercase. Here are some examples:
var camelCase;
var someNumber;
var theBestVariableEver;
var weWillStoreNumbersInThisVariable;