126 lines
2.8 KiB
Markdown
126 lines
2.8 KiB
Markdown
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# camelcase-keys [](https://travis-ci.org/sindresorhus/camelcase-keys)
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> Convert object keys to camel case using [`camelcase`](https://github.com/sindresorhus/camelcase)
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## Install
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```
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$ npm install camelcase-keys
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```
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## Usage
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```js
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const camelcaseKeys = require('camelcase-keys');
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// Convert an object
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camelcaseKeys({'foo-bar': true});
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//=> {fooBar: true}
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// Convert an array of objects
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camelcaseKeys([{'foo-bar': true}, {'bar-foo': false}]);
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//=> [{fooBar: true}, {barFoo: false}]
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camelcaseKeys({'foo-bar': true, nested: {unicorn_rainbow: true}}, {deep: true});
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//=> {fooBar: true, nested: {unicornRainbow: true}}
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camelcaseKeys({a_b: 1, a_c: {c_d: 1, c_e: {e_f: 1}}}, {deep: true, stopPaths: ['a_c.c_e']}),
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//=> {aB: 1, aC: {cD: 1, cE: {e_f: 1}}}
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// Convert object keys to pascal case
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camelcaseKeys({'foo-bar': true, nested: {unicorn_rainbow: true}}, {deep: true, pascalCase: true});
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//=> {FooBar: true, Nested: {UnicornRainbow: true}}
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```
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```js
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const camelcaseKeys = require('camelcase-keys');
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const argv = require('minimist')(process.argv.slice(2));
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//=> {_: [], 'foo-bar': true}
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camelcaseKeys(argv);
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//=> {_: [], fooBar: true}
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```
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## API
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### camelcaseKeys(input, options?)
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#### input
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Type: `object | object[]`
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An object or array of objects to camel-case.
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#### options
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Type: `object`
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##### exclude
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Type: `Array<string | RegExp>`\
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Default: `[]`
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Exclude keys from being camel-cased.
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##### stopPaths
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Type: `string[]`\
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Default: `[]`
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Exclude children at the given object paths in dot-notation from being camel-cased. For example, with an object like `{a: {b: '🦄'}}`, the object path to reach the unicorn is `'a.b'`.
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```js
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camelcaseKeys({
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a_b: 1,
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a_c: {
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c_d: 1,
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c_e: {
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e_f: 1
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}
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}
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}, {
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deep: true,
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stopPaths: [
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'a_c.c_e'
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]
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}),
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/*
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{
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aB: 1,
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aC: {
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cD: 1,
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cE: {
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e_f: 1
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}
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}
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}
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*/
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```
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##### deep
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Type: `boolean`\
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Default: `false`
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Recurse nested objects and objects in arrays.
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##### pascalCase
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Type: `boolean`\
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Default: `false`
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Uppercase the first character as in `bye-bye` → `ByeBye`.
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## camelcase-keys for enterprise
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Available as part of the Tidelift Subscription.
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The maintainers of camelcase-keys and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/npm-camelcase-keys?utm_source=npm-camelcase-keys&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
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## Related
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- [snakecase-keys](https://github.com/bendrucker/snakecase-keys)
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- [kebabcase-keys](https://github.com/mattiloh/kebabcase-keys)
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