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hasTrailer() — fastify Function Reference

Architecture documentation for the hasTrailer() function in reply.js from the fastify codebase.

Function javascript CoreKernel LifecycleManager

Entity Profile

Dependency Diagram

graph TD
  3b9c86f6_41a6_f94c_9975_8188338cbd78["hasTrailer()"]
  4bcd71dc_1ec2_5fe8_b8ff_4a371e392925["reply.js"]
  3b9c86f6_41a6_f94c_9975_8188338cbd78 -->|defined in| 4bcd71dc_1ec2_5fe8_b8ff_4a371e392925
  style 3b9c86f6_41a6_f94c_9975_8188338cbd78 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

lib/reply.js lines 302–304

Reply.prototype.hasTrailer = function (key) {
  return this[kReplyTrailers]?.[key.toLowerCase()] !== undefined
}

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does hasTrailer() do?
hasTrailer() is a function in the fastify codebase, defined in lib/reply.js.
Where is hasTrailer() defined?
hasTrailer() is defined in lib/reply.js at line 302.

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