The last modified date of the file. On getting, if user agents can make this information available, this must return a new Date object initialized to the last modified date of the file. If the last modification date and time are not known, the attribute must return the current date and time as a Date object.
Property of apis/file/Fileapis/file/File
SyntaxNote: This property is read-only.
var result = File.lastModifiedDate;
Return Value
Returns an object of type ObjectObject
ExamplesThis example lets you select one or more files, then reports each file’s name and last modified date/time.
<input type="file" multiple id="myfileinput"><br/>
<input type="button" value="Show file names and last modified dates" onclick="shownd()">
<p>. . .</p>
<script>
function shownd() {
var fileinp = document.getElementById("myfileinput");
var filelist = fileinp.files;
alert(filelist.length);
for (var i = 0; i < filelist.length; i++) {
alert(filelist[i].name + " was last modified: " + filelist[i].lastModifiedDate);
}
}
</script>
Notes
Returns the last modified date of the file in the form of a new Date object. If the browser can’t obtain file date information, null is returned.
Related specificationsMicrosoft Developer Network: Windows Internet Explorer API reference Article
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