@babel/plugin-proposal-optional-catch-binding
Advanced tools
Package description
The @babel/plugin-proposal-optional-catch-binding package allows developers to use the optional catch binding syntax proposed for JavaScript. This syntax lets you use try/catch blocks without needing to specify a catch binding if you don't need it for the catch block.
Optional Catch Binding
This feature allows you to omit the catch binding (the error variable) when you don't need to use it within the catch block. It simplifies the syntax when the error object is unnecessary.
try {
// some code that might throw
} catch {
// handle the error without using the error object
}This package allows Babel to parse the optional catch binding syntax. However, it doesn't transform it. It's useful when you want your code to be parsed correctly but don't need to compile it down for older environments that don't support the feature.
Similar to @babel/plugin-proposal-optional-catch-binding, this package provides the functionality to transform optional catch bindings for compatibility with environments that do not support the feature natively. It's an alternative that might be used in different Babel setups or before the official Babel plugin was available.
Readme
Optional catch binding enables the catch block to execute whether or not an argument is passed to the catch statement (CatchClause).
try {
throw 0;
} catch {
doSomethingWhichDoesntCareAboutTheValueThrown();
}
try {
throw 0;
} catch {
doSomethingWhichDoesntCareAboutTheValueThrown();
} finally {
doSomeCleanup();
}
npm install --save-dev @babel/plugin-proposal-optional-catch-binding
.babelrc (Recommended).babelrc
{
"plugins": ["@babel/plugin-proposal-optional-catch-binding"]
}
babel --plugins @babel/plugin-proposal-optional-catch-binding script.js
require("@babel/core").transform("code", {
plugins: ["@babel/plugin-proposal-optional-catch-binding"]
});
FAQs
Compile optional catch bindings
The npm package @babel/plugin-proposal-optional-catch-binding receives a total of 8,044,600 weekly downloads. As such, @babel/plugin-proposal-optional-catch-binding popularity was classified as popular.
We found that @babel/plugin-proposal-optional-catch-binding 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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