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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

Specifications

Specification Status Comment
Fetch
The definition of 'Headers.entries() (as iterator<>)' in that specification.
Living Standard Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support451644 ?32 ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support4545 Yes4432 ?5.0

See also

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このページの貢献者: fscholz, jpmedley, michaelhogg, chrisdavidmills, teoli
最終更新者: fscholz,