@babel/plugin-syntax-optional-catch-binding
Advanced tools
Package description
The @babel/plugin-syntax-optional-catch-binding package allows Babel to parse JavaScript code that uses optional catch binding syntax. This syntax feature enables developers to use try/catch blocks without the need to specify an error variable in the catch clause if they don't need access to the error. This can make the code cleaner and more concise in situations where the error is irrelevant.
Optional Catch Binding Syntax
This feature allows developers to use try/catch blocks without having to bind the error object to a variable in the catch block. It's particularly useful when the error object is not used in the catch block.
try {
// code that might throw an error
} catch {
// handle the error without needing to bind it to a variable
}While not a direct alternative, @babel/preset-env includes support for transforming modern JavaScript syntax, including optional catch binding, to be compatible with older environments. It's a more comprehensive solution that includes the functionality of @babel/plugin-syntax-optional-catch-binding as part of its broader feature set.
TypeScript, a superset of JavaScript, supports optional catch binding syntax natively from version 2.5. While it's a different tool (a language that compiles to JavaScript rather than a Babel plugin), it offers a similar capability in terms of language syntax.
Readme
This plugin allows Babel to parse optional catch bindings.
Syntax
try {
throw 0;
} catch {
doSomethingWhichDoesntCareAboutTheValueThrown();
console.log("Yay, code executes!");
}
npm install --save-dev @babel/plugin-syntax-optional-catch-binding
.babelrc (Recommended).babelrc
{
"plugins": ["@babel/plugin-syntax-optional-catch-binding"]
}
babel --plugins @babel/plugin-syntax-optional-catch-binding script.js
require("@babel/core").transform("code", {
plugins: ["@babel/plugin-syntax-optional-catch-binding"]
});
FAQs
Allow parsing of optional catch bindings
We found that @babel/plugin-syntax-optional-catch-binding demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 6 open source maintainers collaborating on the project.
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