333
schangxiang@126.com
2025-09-19 18966e02fb573c7e2bb0c6426ed792b38b910940
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[![power-assert][power-assert-banner]][power-assert-url]
 
[![Build Status][travis-image]][travis-url]
[![NPM version][npm-image]][npm-url]
[![License][license-image]][license-url]
 
 
Produces comparison of expected and actual values of `BinaryExpression`.
 
```
  assert(a.name === 'bar')
  --- [string] 'bar'
  +++ [string] a.name
  @@ -1,3 +1,3 @@
  -bar
```
 
 
USAGE
---------------------------------------
 
`var ComparisonRenderer = require('power-assert-renderer-comparison');`
 
 
#### options.stringify
 
| type       | default value |
|:-----------|:--------------|
| `function` | [stringifier module](https://github.com/twada/stringifier) |
 
Function to stringify any target value.
 
 
#### options.maxDepth
 
| type     | default value |
|:---------|:--------------|
| `number` | `2`           |
 
Depth of object traversal. If object depth is greater than `maxDepth`, compound object (IOW, `Array` or `object`) will be pruned with `#` like `["foo",#Array#,#Object#]`.
 
 
#### options.lineSeparator
 
| type     | default value |
|:---------|:--------------|
| `string` | `"\n"`        |
 
Line separator in power assert output.
 
 
#### options.anonymous
 
| type     | default value |
|:---------|:--------------|
| `string` | `"Object"`    |
 
Type name to show when target object is created by anonymous constructor.
 
 
#### options.circular
 
| type     | default value   |
|:---------|:----------------|
| `string` | `"#@Circular#"` |
 
Name to show when target object is detected as circular structure.
 
 
#### options.diff
 
| type       | default value |
|:-----------|:--------------|
| `function` | [udiff.js](https://github.com/twada/power-assert-runtime/blob/master/packages/power-assert-renderer-comparison/lib/udiff.js) |
 
Function to create diff string between two strings.
 
 
#### options.lineDiffThreshold
 
| type     | default value |
|:---------|:--------------|
| `number` | `5`           |
 
Threshold to show diff at character level or line level. If number of lines in target string is greater than `lineDiffThreshold`, then line diff mode will be used to show diff output.
 
 
 
INSTALL
---------------------------------------
 
```sh
$ npm install --save-dev power-assert-renderer-comparison
```
 
 
AUTHOR
---------------------------------------
* [Takuto Wada](https://github.com/twada)
 
 
LICENSE
---------------------------------------
Licensed under the [MIT](https://github.com/twada/power-assert-runtime/blob/master/LICENSE) license.
 
 
[power-assert-url]: https://github.com/power-assert-js/power-assert
[power-assert-banner]: https://raw.githubusercontent.com/power-assert-js/power-assert-js-logo/master/banner/banner-official-fullcolor.png
 
[travis-url]: https://travis-ci.org/twada/power-assert-runtime
[travis-image]: https://secure.travis-ci.org/twada/power-assert-runtime.svg?branch=master
 
[npm-url]: https://npmjs.org/package/power-assert-renderer-comparison
[npm-image]: https://badge.fury.io/js/power-assert-renderer-comparison.svg
 
[license-url]: https://github.com/twada/power-assert-runtime/blob/master/LICENSE
[license-image]: https://img.shields.io/badge/license-MIT-brightgreen.svg