XMLHttpRequest: responseText property
The read-only XMLHttpRequest
property
responseText
returns the text received from a server
following a request being sent.
Value
A string which contains either the textual data received using the
XMLHttpRequest
or null
if the request failed or
""
if the request has not yet been sent by calling
send()
.
While handling an asynchronous request, the value of responseText
always
has the current content received from the server, even if it's incomplete because the
data has not been completely received yet.
You know the entire content has been received when the value of
readyState
becomes
XMLHttpRequest.DONE
(4
), and
status
becomes 200 ("OK"
).
Exceptions
InvalidStateError
DOMException
-
Thrown if the
XMLHttpRequest.responseType
is not set to either the empty string or"text"
. Since theresponseText
property is only valid for text content, any other value is an error condition.
Examples
js
const xhr = new XMLHttpRequest();
xhr.open("GET", "/server", true);
// If specified, responseType must be empty string or "text"
xhr.responseType = "text";
xhr.onload = () => {
if (xhr.readyState === xhr.DONE) {
if (xhr.status === 200) {
console.log(xhr.response);
console.log(xhr.responseText);
}
}
};
xhr.send(null);
Specifications
Specification |
---|
XMLHttpRequest Standard # the-responsetext-attribute |
Browser compatibility
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