Headers: entries() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since October 2017.
Note: This feature is available in Web Workers.
The Headers.entries() method returns an
iterator allowing to go through all key/value pairs
contained in this object. Both the key and value of each pair are
String objects.
Syntax
js
entries()
Parameters
None.
Return value
Returns an iterator.
Examples
js
// 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
Browser compatibility
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