windows.Headers
Headers class represents HTTP request and response headers.
Since: v7.3.0
Headers([init])
| Param | Type | Description |
|---|---|---|
[init] | Headers | Array<{string, string}> | Object | An existing Headers object, an array of name-value pairs or object literal with string values. |
append(name, value)
Appends a new value onto an existing header inside a Header object, or add the header if it does not exist.
See: Headers - append
| Param | Type | Description |
|---|---|---|
name | string | Name of the HTTP header |
value | string | Value of the HTTP header |
delete(name)
Deletes a header from the current Header object.
See: Headers - delete
| Param | Type | Description |
|---|---|---|
name | string | Name of the HTTP header |
get(name)
Returns a byte string of all the values of a header within the Headers object with given name. If the requested header does not exist in the Headers object, it returns null.
Returns: string - Value of the retrieved header.
See: Headers - get
| Param | Type | Description |
|---|---|---|
name | string | Name of the HTTP header. |
has(name)
Indicates whether the Headers object contains a certain header.
Returns: boolean - Indicates whether the Headers object contains the input name.
See: Headers - has
| Param | Type | Description |
|---|---|---|
name | string | Name of the HTTP header. |
set(name, value)
Sets a new value for the existing header inside the Headers object, or add the header if it does not exist.
See: Headers - set
| Param | Type | Description |
|---|---|---|
name | string | Name of the HTTP header. |
value | string | Value of the HTTP header. |
forEach(callbackFn, thisArg)
Executes a callback function once per each key/value pair in the Headers object.
See: Headers - forEach
| Param | Type | Description |
|---|---|---|
callbackFn | function | Function to execute for each entry in the map. It takes the following arguments. |
thisArg | Object | Value to use as this when executing callback. |
keys()
Returns an iterator object allowing to go through all keys contained in the Headers object.
Returns: iterator - Iterator.
See: Headers - keys
values()
Returns an iterator object allowing to go through all values contained in the Headers object.
Returns: iterator - Iterator.
See: Headers - values
entries()
Returns an iterator object allowing to go through all key/value pairs contained in the Headers object.
Returns: iterator - Iterator.
See: Headers - entries
