xcase

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 5,399,331 ops/sec ±1.36% (90 runs sampled)
humps#camelize x 690,996 ops/sec ±1.48% (87 runs sampled)
lodash#camelCase x 597,486 ops/sec ±0.96% (87 runs sampled)
Fastest is xcase#camelize
xcase#decamelize x 4,662,606 ops/sec ±0.72% (92 runs sampled)
humps#decamelize x 1,293,234 ops/sec ±1.50% (85 runs sampled)
lodash#snakeCase x 503,567 ops/sec ±1.69% (91 runs sampled)
Fastest is xcase#decamelize
xcase#camelizeKeys x 415,509 ops/sec ±1.41% (90 runs sampled)
humps#camelizeKeys x 108,174 ops/sec ±0.89% (89 runs sampled)
lodash#reduce + camelCase x 91,300 ops/sec ±0.59% (93 runs sampled)
Fastest is xcase#camelizeKeys
xcase#decamelizeKeys x 427,660 ops/sec ±1.05% (93 runs sampled)
humps#decamelizeKeys x 161,917 ops/sec ±1.03% (91 runs sampled)
lodash#reduce + snakeCase: 
Fastest is xcase#decamelizeKeys
xcase#camelizeKeys (large object) x 518 ops/sec ±1.77% (87 runs sampled)
xcase#camelizeKeys {inPlace: true} (large object) x 447 ops/sec ±1.50% (77 runs sampled)
humps#camelizeKeys (large object) x 134 ops/sec ±2.16% (75 runs sampled)
Fastest is xcase#camelizeKeys (large object)
xcase#decamelizeKeys (large object) x 508 ops/sec ±1.10% (86 runs sampled)
humps#decamelizeKeys (large object) x 135 ops/sec ±19.79% (63 runs sampled)
Fastest is xcase#decamelizeKeys (large object)

Installation

Node: npm install --save xcase Browser: jspm install npm:xcase

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