| title | Headers: entries() method |
|---|---|
| short-title | entries() |
| slug | Web/API/Headers/entries |
| page-type | web-api-instance-method |
| browser-compat | api.Headers.entries |
{{APIRef("Fetch API")}} {{AvailableInWorkers}}
The Headers.entries() method returns an
{{jsxref("Iteration_protocols",'iterator')}} allowing to go through all key/value pairs
contained in this object. Both the key and value of each pair are
{{jsxref("String")}} objects.
entries()
None.
Returns an {{jsxref("Iteration_protocols","iterator")}}.
// Create a test Headers object
const myHeaders = new Headers();
myHeaders.append("Content-Type", "text/xml");
myHeaders.append("Vary", "Accept-Language");
// Display the key/value pairs
for (const pair of myHeaders.entries()) {
console.log(`${pair[0]}: ${pair[1]}`);
}The result is:
content-type: text/xml
vary: Accept-Language
{{Specifications}}
{{Compat}}