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@types/chai

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@types/chai

TypeScript definitions for chai

  • 4.3.20
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
6.4M
increased by25.72%
Maintainers
1
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What is @types/chai?

The @types/chai package provides TypeScript type definitions for Chai, a BDD / TDD assertion library for node and the browser. This allows developers to use Chai in TypeScript projects with type checking and IntelliSense support in code editors.

What are @types/chai's main functionalities?

Expect/Should Assertions

Provides fluent API for asserting facts about values in a readable manner. Supports both 'expect' and 'should' styles.

expect(foo).to.be.a('string');
expect(foo).to.equal('bar');
expect(foo).to.have.lengthOf(3);
should.exist(foo);
foo.should.be.a('string');
foo.should.equal('bar');

Assert Style

Enables a more classical assert style, similar to node's assert module but with more capabilities.

assert.typeOf(foo, 'string');
assert.equal(foo, 'bar');
assert.lengthOf(foo, 3);

Property Assertions

Allows asserting the existence of an object's property, optionally asserting its value or properties.

expect(foo).to.have.property('length').with.lengthOf(3);
foo.should.have.property('length').with.lengthOf(3);

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Package last updated on 24 Sep 2024

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