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@types/chai

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@types/chai

TypeScript definitions for chai

  • 5.0.1
  • ts4.8
  • ts4.9
  • ts5.0
  • ts5.1
  • ts5.2
  • ts5.3
  • ts5.4
  • ts5.5
  • ts5.6
  • ts5.7
  • latest
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  • npm
  • Socket score

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decreased by-9.27%
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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 28 Oct 2024

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