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61 lines
1.0 KiB
61 lines
1.0 KiB
4 years ago
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# babel-code-frame
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> Generate errors that contain a code frame that point to source locations.
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## Install
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```sh
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npm install --save-dev babel-code-frame
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```
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## Usage
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```js
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import codeFrame from 'babel-code-frame';
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const rawLines = `class Foo {
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constructor()
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}`;
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const lineNumber = 2;
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const colNumber = 16;
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const result = codeFrame(rawLines, lineNumber, colNumber, { /* options */ });
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console.log(result);
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```
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```sh
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1 | class Foo {
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> 2 | constructor()
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| ^
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3 | }
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```
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If the column number is not known, you may pass `null` instead.
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## Options
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### `highlightCode`
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`boolean`, defaults to `false`.
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Toggles syntax highlighting the code as JavaScript for terminals.
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### `linesAbove`
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`number`, defaults to `2`.
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Adjust the number of lines to show above the error.
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### `linesBelow`
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`number`, defaults to `3`.
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Adjust the number of lines to show below the error.
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### `forceColor`
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`boolean`, defaults to `false`.
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Enable this to forcibly syntax highlight the code as JavaScript (for non-terminals); overrides `highlightCode`.
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