Headers.entries()

The Headers.entries() method returns an iterator allowing to go through all key/value pairs contained in this object. The both the key and value of each pairs are ByteString objects.

Note: This method is available in Web Workers.

Syntax

headers.entries();

Return value

Returns an iterator.

Example

// Create a test Headers object
var myHeaders = new Headers();
myHeaders.append('Content-Type', 'text/xml');
myHeaders.append('Vary', 'Accept-Language');

// Display the key/value pairs
for (var pair of myHeaders.entries()) {
   console.log(pair[0]+ ': '+ pair[1]);
}

The result is:

content-type: text/xml
vary: Accept-Language

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
entries
Experimental
Chrome Full support 45Edge Full support 16Firefox Full support 44IE No support NoOpera Full support 32Safari ? WebView Android Full support 45Chrome Android Full support 45Firefox Android Full support 44Opera Android Full support 32Safari iOS No support NoSamsung Internet Android Full support 5.0

Legend

Full support Ā 
Full support
No support Ā 
No support
Compatibility unknown Ā 
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

See also