Window: length property
Returns the number of frames (either <frame> or
<iframe> elements) in the window.
Value
A number.
Examples
js
if (window.length) {
// this is a document with subframes
}
Returns the number of frames (either <frame> or
<iframe> elements) in the window.
A number.
if (window.length) {
// this is a document with subframes
}