xcase

Blazingly fast recursive conversion to and from camelCase or PascalCase for objects and arrays and strings.

It supports both Node.js and Browser.

xcase passes most of https://github.com/domchristie/humps tests, excluding only those with custom regexps and handler functions. So if you use humps and need something much faster than this is the right place.

> node benchmark.js
xcase#camelize x 7,521,530 ops/sec ±0.18% (96 runs sampled)
humps#camelize x 870,637 ops/sec ±0.67% (95 runs sampled)
lodash#camelCase x 784,445 ops/sec ±1.18% (92 runs sampled)
Fastest is xcase#camelize
xcase#decamelize x 6,517,893 ops/sec ±0.43% (94 runs sampled)
humps#decamelize x 1,576,663 ops/sec ±0.65% (95 runs sampled)
lodash#snakeCase x 659,930 ops/sec ±1.50% (95 runs sampled)
Fastest is xcase#decamelize
xcase#camelizeKeys x 642,111 ops/sec ±1.16% (92 runs sampled)
humps#camelizeKeys x 126,551 ops/sec ±0.64% (91 runs sampled)
lodash#reduce + camelCase x 120,886 ops/sec ±1.11% (92 runs sampled)
Fastest is xcase#camelizeKeys
xcase#decamelizeKeys x 613,896 ops/sec ±1.13% (86 runs sampled)
humps#decamelizeKeys x 194,091 ops/sec ±0.61% (92 runs sampled)
lodash#reduce + snakeCase: 
Fastest is xcase#decamelizeKeys
xcase#camelizeKeys (large object) x 678 ops/sec ±0.35% (94 runs sampled)
xcase#camelizeKeys {inPlace: true} (large object) x 570 ops/sec ±1.41% (86 runs sampled)
humps#camelizeKeys (large object) x 163 ops/sec ±0.22% (82 runs sampled)
Fastest is xcase#camelizeKeys (large object)
xcase#decamelizeKeys (large object) x 665 ops/sec ±0.68% (92 runs sampled)
humps#decamelizeKeys (large object) x 238 ops/sec ±0.63% (85 runs sampled)
Fastest is xcase#decamelizeKeys (large object)

Installation

Node: npm install --save xcase

Browser (JSPM): jspm install npm:xcase

Browser (Bower): jspm install xcase

Browser (Manual): Load https://raw.githubusercontent.com/encharm/xcase/master/dist/xcase.min.js and use global xcase object

Usage:

let {camelizeKeys} = require('xcase');
let obj = camelizeKeys({
  foo_bar: 1
}); 
// obj is {fooBar: 1}

API

• camelize(string, [options])

  change "foo_bar"/"foo bar"/"foo-bar" to "fooBar"

• camelizeKeys(objectOrArray, [options])

  change all keys according to camelize

• decamelize(string, [options])

  change "fooBar" to "foo_bar" and takes custom separator in options

• decamelizeKeys(objectOrArray, [options])

  change all keys according to decamelize

• pascalize(string, [opts])

  change "foo_bar"/"foo bar"/"foo-bar" to "FooBar"

• pascalizeKeys(objectOrArray, [options])

  change all keys according to pascalize

• depascalize(string, [opts])

  change "FooBar" to "foo_bar" and takes custom separator in options

• depascalizeKeys(objectOrArray, [options])

  change all keys according to depascalize

Options:

• inPlace: true - to modify existing object (note, it's slower than default! v8 is smarter than us)
• separator - for example - for de** variant of functions

License

MIT

Copyright (c) 2016, Code Charm Ltd