FAQ: Introduction to JavaScript - Methods


This community-built FAQ covers the “Methods” exercise from the lesson "Introduction to JavaScript ".

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This exercise can be found in the following Codecademy content:

Web Development

Introduction To JavaScript

FAQs on the exercise Methods

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Do I have to distinguish uppercase and lower case when I use a Javascript methods.

Are they different ’ console.log(‘hello’.toUpperCase()); ’ and ’ console.log(‘hello’.touppercase()); ’ ?


JavaScript is case sensitive so all methods and functions must be written the way they appear in the specs.

.toUpperCase()  versus  .touppercase()

.toLowerCase()  versus  .tolowercase()

.toString()     versus  .tostring()

and so on. We cannot vary from the specified names.

It is typical in JS when combining words in a name to use camelCase, with the first letter in lowercase, and the rest of the word starters capitalized.

Another less typical form is called snake_case but we rarely see that in JS. It’s more of a Python thing.


Conversely, this does not apply to JS operators.


being a perfect example. Look down this rabbit hole, too.