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@babel/plugin-proposal-optional-chaining
Advanced tools
Transform optional chaining operators into a series of nil checks
The @babel/plugin-proposal-optional-chaining package is a Babel plugin that allows developers to use the optional chaining syntax in JavaScript. Optional chaining enables developers to read the value of a property located deep within a chain of connected objects without having to check that each reference in the chain is valid.
Optional Property Access
Safely access a property on an object. If 'obj' is null or undefined, 'value' will be undefined instead of throwing an error.
const value = obj?.prop;
Optional Method Calls
Safely call a method on an object. If 'obj' or 'obj.method' is null or undefined, 'result' will be undefined instead of throwing an error.
const result = obj?.method?.();
Optional Element Access
Safely access an array element. If 'arr' is null or undefined, 'item' will be undefined instead of throwing an error.
const item = arr?.[index];
This package allows safe property access on objects but does not use the optional chaining syntax. It's a utility function rather than a Babel plugin and requires manual function calls.
Lodash provides a 'get' function that allows safe access to object properties. It's similar in purpose to optional chaining but uses a different syntax and is a part of the larger Lodash utility library.
Transform optional chaining operators into a series of nil checks
See our website @babel/plugin-proposal-optional-chaining for more information.
Using npm:
npm install --save-dev @babel/plugin-proposal-optional-chaining
or using yarn:
yarn add @babel/plugin-proposal-optional-chaining --dev
FAQs
Transform optional chaining operators into a series of nil checks
The npm package @babel/plugin-proposal-optional-chaining receives a total of 9,853,520 weekly downloads. As such, @babel/plugin-proposal-optional-chaining popularity was classified as popular.
We found that @babel/plugin-proposal-optional-chaining demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 4 open source maintainers collaborating on the project.
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