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What are Variable Naming Conventions in JavaScript
While naming your variables in JavaScript, keep some rules in mind. The following are the variable naming conventions in JavaScript −
- You should not use any of the JavaScript reserved keywords as a variable name. These keywords are mentioned in the next section. For example, break or boolean variable names are not valid.
- JavaScript variable names should not start with a numeral (0-9). They must begin with a letter or an underscore character. For example, 123test is an invalid variable name but _123test is a valid one.
- JavaScript variable names are case-sensitive. For example, Name and name are two different variables.
Here are the Examples −
var name; // correct var 2name; // incorrect var _2name; // correct
Updated on: 13-Jun-2020
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