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imuty

v1.0.0

Published

Simple and lightweight library allowing you to **immutably** update object (or part of the object).

Downloads

1

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Links

Git

Maintainers

siegriftsiegrift

Keywords

Readme

imuty

Simple and lightweight library allowing you to immutably update object (or part of the object).

API

Table of Contents

isValidPath

Returns true if the argument is a valid path. (Path must be an array of string or numbers).

Parameters

  • path any

Returns boolean

setIn

Sets a value on a given path in the object. If one of the arguments is invalid an error is thrown.

Parameters

  • object Object object in which the value should be set
  • path Array<(number | string)> path in the object where to set the value
  • value any value to be set

Returns Object with the value set

getIn

Returns a value found in an object on a given path. If there is no value on the path returns defaultValue instead. If the path is not a valid path object, an error is thrown.

Parameters

  • object Object object from which to get the value
  • path Array<(number | string)> path to the value in the object
  • defaultValue any value to be returned if the path is not part of the object

Returns any value on the path or defaultValue

multiSetIn

Allows you to specify multiple object transformations at once. Each transformation must be a two element array, where the first element is the path of the transformation and the second is the value of the transformation.

Transformations are applied from left to right.

Parameters

  • object Object object in which the transformation should be applied
  • transforms ...[Array<(number | string)>, any] transformations to be applied

Returns Object with all transformations applied

pathExists

Returns true if the path exists in given object.

Parameters

Returns boolean

filterObject

Filters an object by the paths provided.

Parameters

Returns Object with filtered properties from the object

mergeIn

Merges the path of the object found on a given path with the properties of value object.

Parameters

Returns Object that is merged with the value on a given path