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Deno 2.2 Improves Dependency Management and Expands Node.js Compatibility
Deno 2.2 enhances Node.js compatibility, improves dependency management, adds OpenTelemetry support, and expands linting and task automation for developers.
custom-verror
Advanced tools
Simple class extending VError for easy custom error creation.
Here is the basic usage. For more use cases, see the tests.
UserNotAllowedError.js
'use strict';
const CustomVError = require('custom-verror');
// Replace UserNotAllowedError with your custom error name
module.exports = class UserNotAllowedError extends CustomVError {
constructor(...args) {
super(...args);
// Provide a default message
this.message = this.message || 'User is not allowed to perform this action';
}
};
const UserNotAllowedError = require('./UserNotAllowedError');
function performAction() {
if (!isAllowed) {
throw new UserNotAllowedError({
// You can provide some error metadata. This will be appended to the message
info: {
user_id: user._id
}
})
}
}
try {
performAction();
} catch (ex) {
if (ex instanceof UserNotAllowedError) {
numberOfTimesUsersTriedToDoSomethingTheyWerentSupposedTo++;
// This will log the default message and the metadata in following format:
// "User is not allowed to perform this action user_id=FOO"
console.log(ex);
}
}
FAQs
Simple class extending VError for easy custom error creation
The npm package custom-verror receives a total of 219 weekly downloads. As such, custom-verror popularity was classified as not popular.
We found that custom-verror 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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