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safe-chain

v3.0.5

Published

No more crazy checks to safely get a nested value inside an object

Downloads

129

Vulnerabilities

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  • 0High
  • 0Medium
  • 0Low

Links

Maintainers

caiogondimcaiogondim

Keywords

Readme

safe-chain

No more crazy checks to safely get a nested value inside an object.

Think of it as Ruby safe operator or CoffeeScript existential operator, implemented as a simple function in JavaScript.

Installation

npm install safe-chain

Usage

Nested value

// Before
const nestedVal = (
  obj &&
  obj.lorem &&
  obj.lorem.ipsum &&
  obj.lorem.ipsum.dolor
)

// After
const nestedVal = safeChain(obj, `lorem.ipsum.dolor`)

Nested function

// Before
const nestedFuncVal = (
  obj &&
  obj.lorem &&
  obj.lorem.ipsum &&
  obj.lorem.ipsum.dolor &&
  typeof obj.lorem.ipsum.dolor === 'function'
    ? obj.lorem.ipsum.dolor()
    : undefined
)

// After
const nestedFuncVal = safeChain(obj, `lorem.ipsum.dolor`)()

Credits

caiogondim.com  ·  GitHub @caiogondim  ·  Twitter @caio_gondim