afbe3997a8
* babel-code-frame: add options for linesBefore, linesAfter * add example, use list of keywords * a [skip ci] * Update index.js
babel-code-frame
Generate errors that contain a code frame that point to source locations.
Install
$ npm install babel-code-frame
Usage
import codeFrame from 'babel-code-frame';
const rawLines = `class Foo {
constructor()
}`;
const lineNumber = 2;
const colNumber = 16;
const result = codeFrame(rawLines, lineNumber, colNumber, { /* options */ });
console.log(result);
1 | class Foo {
> 2 | constructor()
| ^
3 | }
If the column number is not known, you may pass null instead.
Options
| name | type | default | description |
|---|---|---|---|
| highlightCode | boolean | false |
Syntax highlight the code as JavaScript for terminals |
| linesAbove | number | 2 | The number of lines to show above the error |
| linesBelow | number | 3 | The number of lines to show below the error |