hey-listen
Advanced tools
Package description
The hey-listen npm package is a collection of utility functions designed to help developers with warning and invariant messages. It is often used to provide development-time checks and informative messages to developers, ensuring that they are using APIs or components correctly and are aware of any misuse or potential issues.
warning
The 'warning' function is used to display warning messages in the console when a certain condition is not met. It is useful for alerting developers of potential issues during development.
import { warning } from 'hey-listen';
// Check if a condition is met and warn if not
warning(condition, 'This is a warning message if the condition is false.');invariant
The 'invariant' function is used to enforce a condition. If the condition is not met, it throws an error. This is useful for ensuring that certain conditions are met before proceeding with code execution.
import { invariant } from 'hey-listen';
// Check if a condition is met and throw an error if not
invariant(condition, 'This error is thrown if the condition is false.');The 'warning' npm package is similar to hey-listen's warning function. It allows developers to print warning messages to the console if a condition is not met. The usage is similar, but 'warning' is a standalone package focused solely on warnings.
The 'invariant' npm package provides functionality similar to hey-listen's invariant function. It is used to assert that a condition is met and throw an error if it is not. This package is also focused on a single purpose, providing a strict condition checking utility.
While not a direct equivalent, 'prop-types' is often used in React applications to perform development-time checks and validations on the types of props passed to components, which is in line with the kind of development checks that hey-listen provides.
Readme
Hey, Listen! provides simple versions of the popular warning and invariant dev-experience functions.
The library checks against process.env.NODE_ENV to minify away messages in production.
npm install hey-listen
yarn add hey-listen
warningimport { warning } from 'hey-listen';
warning(false, 'Warning message'); // console.warn "Warning message"
invariantimport { invariant } from 'hey-listen';
invariant(false, 'Error message'); // throws "Error message"
FAQs
Warning and invariant dev-ex messaging.
The npm package hey-listen receives a total of 1,387,347 weekly downloads. As such, hey-listen popularity was classified as popular.
We found that hey-listen demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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