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Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`
The camelcase npm package is used to convert strings to camel case. This means it takes input strings with spaces, hyphens, underscores, or a mix of different delimiters and converts them into a string where the first letter of each word is capitalized except for the first word, and all the words are joined without spaces.
String Conversion to Camel Case
Converts a hyphenated string to camel case.
"foo-bar".pipe(camelCase); // 'fooBar'
Handling Multiple Delimiters
Converts a string with multiple delimiters to camel case.
"foo_bar--baz foo".pipe(camelCase); // 'fooBarBazFoo'
Preserving Consecutive Uppercase Characters
Converts a string to camel case while preserving consecutive uppercase characters.
"foo-BAR".pipe(camelCase({ pascalCase: false })); // 'fooBAR'
Converting to Pascal Case
Converts a string to pascal case, which is similar to camel case but with the first letter capitalized.
"foo-bar".pipe(camelCase({ pascalCase: true })); // 'FooBar'
A package that provides various case conversion utilities including camel case, snake case, pascal case, and more. It offers more comprehensive case conversion options compared to camelcase.
A package that converts a string to camel case. It is similar to camelcase but is a smaller package with fewer features and customization options.
This package is designed to convert strings to param case (kebab case). While it serves a different purpose, it is related in the sense that it deals with string case conversion, just like camelcase.
Convert a dash/dot/underscore/space separated string to camelCase or PascalCase:
foo-bar
→fooBar
Correctly handles Unicode strings.
If you use this on untrusted user input, don't forget to limit the length to something reasonable.
npm install camelcase
import camelCase from 'camelcase';
camelCase('foo-bar');
//=> 'fooBar'
camelCase('foo_bar');
//=> 'fooBar'
camelCase('Foo-Bar');
//=> 'fooBar'
camelCase('розовый_пушистый_единорог');
//=> 'розовыйПушистыйЕдинорог'
camelCase('Foo-Bar', {pascalCase: true});
//=> 'FooBar'
camelCase('--foo.bar', {pascalCase: false});
//=> 'fooBar'
camelCase('Foo-BAR', {preserveConsecutiveUppercase: true});
//=> 'fooBAR'
camelCase('fooBAR', {pascalCase: true, preserveConsecutiveUppercase: true});
//=> 'FooBAR'
camelCase('foo bar');
//=> 'fooBar'
console.log(process.argv[3]);
//=> '--foo-bar'
camelCase(process.argv[3]);
//=> 'fooBar'
camelCase(['foo', 'bar']);
//=> 'fooBar'
camelCase(['__foo__', '--bar'], {pascalCase: true});
//=> 'FooBar'
camelCase(['foo', 'BAR'], {pascalCase: true, preserveConsecutiveUppercase: true})
//=> 'FooBAR'
camelCase('lorem-ipsum', {locale: 'en-US'});
//=> 'loremIpsum'
Type: string | string[]
The string to convert to camel case.
Type: object
Type: boolean
Default: false
Uppercase the first character: foo-bar
→ FooBar
Type: boolean
Default: false
Preserve consecutive uppercase characters: foo-BAR
→ FooBAR
.
Type: false | string | string[]
Default: The host environment’s current locale.
The locale parameter indicates the locale to be used to convert to upper/lower case according to any locale-specific case mappings. If multiple locales are given in an array, the best available locale is used.
import camelCase from 'camelcase';
camelCase('lorem-ipsum', {locale: 'en-US'});
//=> 'loremIpsum'
camelCase('lorem-ipsum', {locale: 'tr-TR'});
//=> 'loremİpsum'
camelCase('lorem-ipsum', {locale: ['en-US', 'en-GB']});
//=> 'loremIpsum'
camelCase('lorem-ipsum', {locale: ['tr', 'TR', 'tr-TR']});
//=> 'loremİpsum'
Setting locale: false
ignores the platform locale and uses the Unicode Default Case Conversion algorithm:
import camelCase from 'camelcase';
// On a platform with 'tr-TR'
camelCase('lorem-ipsum');
//=> 'loremİpsum'
camelCase('lorem-ipsum', {locale: false});
//=> 'loremIpsum'
FAQs
Convert a dash/dot/underscore/space separated string to camelCase or PascalCase: `foo-bar` → `fooBar`
The npm package camelcase receives a total of 68,230,389 weekly downloads. As such, camelcase popularity was classified as popular.
We found that camelcase demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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