25 lines
915 B
Markdown
25 lines
915 B
Markdown
# jest-matcher-utils
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This package's exports are most notably used by `expect`'s [`this.utils`](https://jestjs.io/docs/expect#thisutils).
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## Installation
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To add this package as a dependency of a project, run either of the following commands:
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- `npm install jest-matcher-utils`
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- `yarn add jest-matcher-utils`
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## Exports ([src/index.ts](https://github.com/facebook/jest/blob/HEAD/packages/jest-matcher-utils/src/index.ts))
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### Functions
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`stringify` `highlightTrailingWhitespace` `printReceived` `printExpected` `printWithType` `ensureNoExpected` `ensureActualIsNumber` `ensureExpectedIsNumber` `ensureNumbers` `ensureExpectedIsNonNegativeInteger` `printDiffOrStringify` `diff` `pluralize` `getLabelPrinter` `matcherErrorMessage` `matcherHint`
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### Types
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`MatcherHintOptions` `DiffOptions`
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### Constants
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`EXPECTED_COLOR` `RECEIVED_COLOR` `INVERTED_COLOR` `BOLD_WEIGHT` `DIM_COLOR` `SUGGEST_TO_CONTAIN_EQUAL`
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