Class HeadersImpl

constructor

• new HeadersImpl(init: Map<string, string | string[]>): HeadersImpl

  Parameters

  • init: Map<string, string | string[]>

  Returns HeadersImpl

Readonlyimpl

forEach

• forEach(callbackfn: (value: string, key: string, parent: this) => void): void

  Parameters

  • callbackfn: (value: string, key: string, parent: this) => void

  Returns void

delete

• delete(name: string): void

  The delete() method of the Headers interface deletes a header from the current Headers object.

  MDN Reference

  Parameters

  • name: string

  Returns void

get

• get(name: string): string | null

  The get() method of the Headers interface returns a byte string of all the values of a header within a Headers object with a given name. If the requested header doesn't exist in the Headers object, it returns null.

  MDN Reference

  Parameters

  • name: string

  Returns string | null

getSetCookie

• getSetCookie(): string[]

  The getSetCookie() method of the Headers interface returns an array containing the values of all Set-Cookie headers associated with a response. This allows Headers objects to handle having multiple Set-Cookie headers, which wasn't possible prior to its implementation.

  MDN Reference

  Returns string[]

has

• has(name: string): boolean

  The has() method of the Headers interface returns a boolean stating whether a Headers object contains a certain header.

  MDN Reference

  Parameters

  • name: string

  Returns boolean

set

• set(name: string, value: string): void

  The set() method of the Headers interface sets a new value for an existing header inside a Headers object, or adds the header if it does not already exist.

  MDN Reference

  Parameters

  • name: string
  • value: string

  Returns void

[iterator]

• "[iterator]"(): Iterable<[string, string]>

  Returns Iterable<[string, string]>

entries

• entries(): Iterable<[string, string]>

  Returns Iterable<[string, string]>

keys

• keys(): Iterable<string>

  Returns Iterable<string>

values

• values(): Iterable<string>

  Returns Iterable<string>

append

• append(key: string, value?: string | string[]): HeadersImpl

  The append() method of the Headers interface appends a new value onto an existing header inside a Headers object, or adds the header if it does not already exist.

  MDN Reference

  Parameters

  • key: string
  • Optionalvalue: string | string[]

  Returns HeadersImpl