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
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | ? | 44 (44) | ? | ? | ? |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | ? | ? | 44.0 (44) | (Yes) | ? | ? | ? |
See also
Document Tags and Contributors
Tags:
Contributors to this page:
chrisdavidmills,
teoli
Last updated by:
chrisdavidmills,