FormData: 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 2018.
Note: This feature is available in Web Workers.
The FormData.entries() method returns an iterator which iterates through all key/value pairs contained in the FormData. The key of each pair is a string, and the value is either a string or a Blob.
Note:
Unlike Map entries, FormData entries are not necessarily unique by key. A form can contain multiple elements with the same name, so the same key may appear in more than one pair while iterating. Past the first entry, the value may differ from the return value of get() which returns the first value associated with the key.
Syntax
js
entries()
Parameters
None.
Return value
Examples
js
formData.append("key1", "value1");
formData.append("key2", "value2");
// Display the key/value pairs
for (const pair of formData.entries()) {
console.log(pair[0], pair[1]);
}
The result is:
key1 value1 key2 value2
Specifications
| Specification |
|---|
| XMLHttpRequest # interface-formdata |