change-case

What is change-case?

The change-case package is a utility library that provides various functions to transform strings between different cases, such as camel case, snake case, kebab case, and more. It is useful for formatting strings in different coding conventions or textual formats.

What are change-case's main functionalities?

camelCase

Converts a string to camel case.

const { camelCase } = require('change-case');
console.log(camelCase('test string')); // 'testString'

snakeCase

Converts a string to snake case.

const { snakeCase } = require('change-case');
console.log(snakeCase('test string')); // 'test_string'

kebabCase

Converts a string to kebab case.

const { kebabCase } = require('change-case');
console.log(kebabCase('test string')); // 'test-string'

titleCase

Converts a string to title case.

const { titleCase } = require('change-case');
console.log(titleCase('test string')); // 'Test String'

constantCase

Converts a string to constant case.

const { constantCase } = require('change-case');
console.log(constantCase('test string')); // 'TEST_STRING'

Other packages similar to change-case

lodash

Lodash is a comprehensive utility library that includes methods for string case transformation, such as _.camelCase, _.snakeCase, and _.kebabCase. It offers a wider range of utilities beyond string case conversion, making it more versatile but also larger in size compared to change-case.

case

The 'case' package is another string case conversion library that supports various case transformations. It is similar to change-case but has a different API and may have different case conversion implementations.

string-case

String-case is a library that provides case conversion functions similar to change-case. It may offer a different set of features or API design, which could be preferred by some developers over change-case.

README

Change Case

Transform a string between camelCase, PascalCase, Capital Case, snake_case, kebab-case, CONSTANT_CASE and others.

Installation

npm install change-case --save

Usage

These case change functions are included:

Method	Result
camelCase	twoWords
capitalCase	Two Words
constantCase	TWO_WORDS
dotCase	two.words
trainCase	Two-Words
kebabCase	two-words
noCase	two words
pascalCase	TwoWords
pathCase	two/words
sentenceCase	Two words
snakeCase	two_words

All core methods accept options as the second argument.

Options

• locale?: string[] | string | false - lower/upper according to specified locale, defaults to host environment. Set to false to disable.
• separateNumbers?: boolean Splits foo123 into foo 123 instead of keeping them together. Defaults to true.

Split

Change case also exports a split function which can be used to build your own case formatting methods. It accepts a string and returns each "word" as an array. For example:

split("fooBar")
  .map((x) => x.toLowerCase())
  .join("_"); //=> "foo_bar"

Change Case Keys

import * as changeKeys from "change-case/keys";

changeKeys.camelCase({ TEST_KEY: true }); //=> { testKey: true }

Keys is a wrapper around all case methods to support transforming objects to any case.

API

• input: unknown Any JavaScript value.
• depth: number Specify the depth to transfer for case transformation. Defaults to 1.
• options: object Same as base case library.

License

MIT