Question 1

How to generate random names with ChanceJS?

Accepted Answer

Use the `name()` method, which can generate first names, last names, or full names. You can specify gender or other parameters to customize the output for testing scenarios.

Question 2

ChanceJS vs Faker.js: which is better for fake data?

Accepted Answer

ChanceJS is lighter and focuses on simplicity with a minimal API and repeatable randomness via seeding, ideal for testing. Faker.js offers more extensive datasets and better localization, so choose Chance for basic, controlled data and Faker for richer, international content.

Question 3

Can I use ChanceJS for password generation?

Accepted Answer

Not recommended for secure passwords, as it uses a pseudorandom generator. For cryptographic purposes, use built-in browser or Node.js crypto APIs. Chance is better for mock passwords in testing.

Question 4

How to seed random numbers in ChanceJS for testing?

Accepted Answer

Instantiate a Chance object with a seed, like `const chance = new Chance(12345);`. This ensures all generated data—numbers, strings, etc.—is reproducible, making tests deterministic and easier to debug.

Question 5

Does ChanceJS support generating random JSON data?

Accepted Answer

It can generate individual values, but for structured JSON, you'll need to combine methods or use dependent tools like Fake JSON Schema. The core library doesn't handle complex nested objects automatically.

Question 6

Is ChanceJS good for mocking APIs?

Accepted Answer

Yes, especially when integrated with tools like swagger-mock-api. It can populate schemas with random data, but for dynamic API responses with relationships, additional coding or libraries may be required.

chance.js

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