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* Bump lodash from 4.17.15 to 4.17.19 (#52) Bumps [lodash](https://github.com/lodash/lodash) from 4.17.15 to 4.17.19. - [Release notes](https://github.com/lodash/lodash/releases) - [Commits](https://github.com/lodash/lodash/compare/4.17.15...4.17.19) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Amruta Kawade <65217380+AmrutaKawade@users.noreply.github.com> * Bump @actions/core from 1.1.3 to 1.2.6 (#60) Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.1.3 to 1.2.6. - [Release notes](https://github.com/actions/toolkit/releases) - [Changelog](https://github.com/actions/toolkit/blob/main/packages/core/RELEASES.md) - [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/core) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Amruta Kawade <65217380+AmrutaKawade@users.noreply.github.com> * updating node_nodules * updated package-lock Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
113 lines
2.6 KiB
Markdown
113 lines
2.6 KiB
Markdown
# make-error
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[](https://npmjs.org/package/make-error) [](https://travis-ci.org/JsCommunity/make-error) [](https://packagephobia.now.sh/result?p=make-error) [](https://github.com/JsCommunity/make-error/commits/master)
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> Make your own error types!
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## Features
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- Compatible Node & browsers
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- `instanceof` support
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- `error.name` & `error.stack` support
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- compatible with [CSP](https://en.wikipedia.org/wiki/Content_Security_Policy) (i.e. no `eval()`)
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## Installation
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### Node & [Browserify](http://browserify.org/)/[Webpack](https://webpack.js.org/)
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Installation of the [npm package](https://npmjs.org/package/make-error):
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```
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> npm install --save make-error
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```
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Then require the package:
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```javascript
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var makeError = require("make-error");
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```
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### Browser
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You can directly use the build provided at [unpkg.com](https://unpkg.com):
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```html
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<script src="https://unpkg.com/make-error@1/dist/make-error.js"></script>
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```
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## Usage
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### Basic named error
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```javascript
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var CustomError = makeError("CustomError");
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// Parameters are forwarded to the super class (here Error).
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throw new CustomError("a message");
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```
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### Advanced error class
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```javascript
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function CustomError(customValue) {
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CustomError.super.call(this, "custom error message");
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this.customValue = customValue;
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}
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makeError(CustomError);
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// Feel free to extend the prototype.
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CustomError.prototype.myMethod = function CustomError$myMethod() {
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console.log("CustomError.myMethod (%s, %s)", this.code, this.message);
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};
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//-----
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try {
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throw new CustomError(42);
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} catch (error) {
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error.myMethod();
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}
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```
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### Specialized error
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```javascript
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var SpecializedError = makeError("SpecializedError", CustomError);
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throw new SpecializedError(42);
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```
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### Inheritance
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> Best for ES2015+.
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```javascript
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import { BaseError } from "make-error";
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class CustomError extends BaseError {
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constructor() {
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super("custom error message");
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}
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}
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```
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## Related
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- [make-error-cause](https://www.npmjs.com/package/make-error-cause): Make your own error types, with a cause!
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## Contributions
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Contributions are _very_ welcomed, either on the documentation or on
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the code.
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You may:
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- report any [issue](https://github.com/JsCommunity/make-error/issues)
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you've encountered;
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- fork and create a pull request.
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## License
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ISC © [Julien Fontanet](http://julien.isonoe.net)
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