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readme.md

dot-prop

Get, set, or delete a property from a nested object using a dot path

Install

$ npm install --save dot-prop

Usage

const dotProp = require('dot-prop');

// getter
dotProp.get({foo: {bar: 'unicorn'}}, 'foo.bar');
//=> 'unicorn'

dotProp.get({foo: {bar: 'a'}}, 'foo.notDefined.deep');
//=> undefined

dotProp.get({foo: {bar: 'a'}}, 'foo.notDefined.deep', 'default value');
//=> 'default value'

dotProp.get({foo: {'dot.dot': 'unicorn'}}, 'foo.dot\\.dot');
//=> 'unicorn'

// setter
const obj = {foo: {bar: 'a'}};
dotProp.set(obj, 'foo.bar', 'b');
console.log(obj);
//=> {foo: {bar: 'b'}}

const foo = dotProp.set({}, 'foo.bar', 'c');
console.log(foo);
//=> {foo: {bar: 'c'}}

dotProp.set(obj, 'foo.baz', 'x');
console.log(obj);
//=> {foo: {bar: 'b', baz: 'x'}}

// has
dotProp.has({foo: {bar: 'unicorn'}}, 'foo.bar');
//=> true

// deleter
const obj = {foo: {bar: 'a'}};
dotProp.delete(obj, 'foo.bar');
console.log(obj);
//=> {foo: {}}

obj.foo.bar = {x: 'y', y: 'x'};
dotProp.delete(obj, 'foo.bar.x');
console.log(obj);
//=> {foo: {bar: {y: 'x'}}}

API

get(obj, path, [defaultValue])

set(obj, path, value)

Returns the object.

has(obj, path)

delete(obj, path)

obj

Type: Object

Object to get, set, or delete the path value.

path

Type: string

Path of the property in the object, using . to separate each nested key.

Use \\. if you have a . in the key.

value

Type: any

Value to set at path.

defaultValue