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55 lines
1.1 KiB
Markdown
55 lines
1.1 KiB
Markdown
# create-error-class [](https://travis-ci.org/floatdrop/create-error-class)
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> Create error class
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## Install
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```
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$ npm install --save create-error-class
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```
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## Usage
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```js
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var createErrorClass = require('create-error-class');
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var HTTPError = createErrorClass('HTTPError', function (props) {
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this.message = 'Status code is ' + props.statusCode;
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});
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throw new HTTPError({statusCode: 404});
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```
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## API
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### createErrorClass(className, [setup])
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Return constructor of Errors with `className`.
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#### className
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*Required*
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Type: `string`
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Class name of Error Object. Should contain characters from `[0-9a-zA-Z_$]` range.
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#### setup
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Type: `function`
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Setup function, that will be called after each Error object is created from constructor with context of Error object.
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By default `setup` function sets `this.message` as first argument:
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```js
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var MyError = createErrorClass('MyError');
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new MyError('Something gone wrong!').message; // => 'Something gone wrong!'
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```
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## License
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MIT © [Vsevolod Strukchinsky](http://github.com/floatdrop)
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