JSPM

transform-object-keys

1.0.7
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  • License MIT

Transform object keys into a new one using preset or custom rules

Package Exports

  • transform-object-keys

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (transform-object-keys) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

transform-object-keys

Install

$ npm install transform-object-keys

Usage

const transformObjectKeys = require('transform-object-keys');

// Convert an object
transformObjectKeys({'foo-bar': true});
//=> {fooBar: true}

// Convert an array of objects
transformObjectKeys([{'foo-bar': true}, {'bar-foo': false}]);
//=> [{fooBar: true}, {barFoo: false}]

transformObjectKeys({'foo-bar': true, nested: {unicorn_rainbow: true}}, {deep: true});
//=> {fooBar: true, nested: {unicornRainbow: true}}

transformObjectKeys({a_b: 1, a_c: {c_d: 1, c_e: {e_f: 1}}}, {deep: true, stopPaths: ['a_c.c_e']}),
//=> {aB: 1, aC: {cD: 1, cE: {e_f: 1}}}

// Convert object keys to pascal case
transformObjectKeys({'foo-bar': true, nested: {unicorn_rainbow: true}}, {deep: true, pascalCase: true});
//=> {FooBar: true, Nested: {UnicornRainbow: true}}

// Convert object keys to snake case
transformObjectKeys({'foo-bar': true, nested: {unicorn_rainbow: true}}, {deep: true, snakeCase: true});
//=> {FooBar: true, Nested: {UnicornRainbow: true}}

// Convert object keys using custom function
transformObjectKeys({'foo-bar': true, nested: {unicorn_rainbow: true}}, {deep: true, transform: key => key.toUppercase()});
//=> {FooBar: true, Nested: {UnicornRainbow: true}}
const transformObjectKeys = require('transform-object-keys');

const argv = require('minimist')(process.argv.slice(2));
//=> {_: [], 'foo-bar': true}

transformObjectKeys(argv);
//=> {_: [], fooBar: true}

API

transformObjectKeys(input, options?)

input

Type: object | object[]

An object or array of objects to camel-case.

options

Type: object

exclude

Type: Array<string | RegExp>
Default: []

Exclude keys from being camel-cased.

stopPaths

Type: string[]
Default: []

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'.

transformObjectKeys({
    a_b: 1,
    a_c: {
        c_d: 1,
        c_e: {
            e_f: 1
        }
    }
}, {
    deep: true,
    stopPaths: [
        'a_c.c_e'
    ]
}),
/*
{
    aB: 1,
    aC: {
        cD: 1,
        cE: {
            e_f: 1
        }
    }
}
*/
deep

Type: boolean
Default: false

Recurse nested objects and objects in arrays.

pascalCase

Type: boolean
Default: false

Uppercase the first character as in bye-bye → ByeBye.

snakeCase

Type: boolean
Default: false

Uppercase the first character as in bye-bye → bye_bye.

transform

Type: (key: string) => string
Default: null

Transformation function to be used instead of default presets