Interface Headers
interface Headers {
"[iterator]"(): HeadersIterator<[string, string]>;
append(name: string, value: string): void;
delete(name: string): void;
entries(): HeadersIterator<[string, string]>;
forEach(
callbackfn: (value: string, key: string, parent: Headers) => void,
thisArg?: any,
): void;
get(name: string): string;
getSetCookie(): string[];
has(name: string): boolean;
keys(): HeadersIterator<string>;
set(name: string, value: string): void;
values(): HeadersIterator<string>;
}
"[iterator]"(): HeadersIterator<[string, string]>;
append(name: string, value: string): void;
delete(name: string): void;
entries(): HeadersIterator<[string, string]>;
forEach(
callbackfn: (value: string, key: string, parent: Headers) => void,
thisArg?: any,
): void;
get(name: string): string;
getSetCookie(): string[];
has(name: string): boolean;
keys(): HeadersIterator<string>;
set(name: string, value: string): void;
values(): HeadersIterator<string>;
}
 Methods
[iterator]
- "[iterator]"(): HeadersIterator<[string, string]>
- Returns HeadersIterator<[string, string]>
append
delete
entries
- entries(): HeadersIterator<[string, string]>
- Returns an iterator allowing to go through all key/value pairs contained in this object. - Returns HeadersIterator<[string, string]>
forEach 
get
getSetCookie  
has
keys
- keys(): HeadersIterator<string>
- Returns an iterator allowing to go through all keys of the key/value pairs contained in this object. - Returns HeadersIterator<string>
set
values
- values(): HeadersIterator<string>
- Returns an iterator allowing to go through all values of the key/value pairs contained in this object. - Returns HeadersIterator<string>
MDN Reference