How to retrieve document or Video file extension from SharePoint library using COM JavaScript

Question

How to retrieve document or Video file extension from SharePoint library using COM JavaScript

but i Tried this code but Error will be like this:

$(document).ready(function() 
        {
             LoadZipCodes();
             alert("Ftc");
        });

function LoadZipCodes()
    {
        $.ajax({ ///MyLearning/My%20Learning%20Videos/HaysLMS?Web=1
                url:"http://vm-srv-hays:2015/_api/web/GetFolderByServerRelativeUrl(\'/My Learning Videos/Hays-SP2013/')/files",
                method: "GET",
                headers: { "Accept": "application/json; odata=verbose" },
                success : function(data){ //data will have the video object
                //var name = data.d.results[0].Name;
                //console.log(title); 
                alert(JSON.stringify(data));
                },
                error : function(args) {
                console.log(args);
                }});

}

Answer 1

When a video (Content type: Video) is stored in the asset library, they are stored as folders with folder name being the video name. What you are getting is only the name of the folder. The properties (URL, full name) and the video itself are stored within the folder as another content type known as Video Rendition. Getting the actual video can be done using REST api with the following url:

http://siteurl/_api/web/GetFolderByServerRelativeUrl('/Video Name')/Files.

Update:

$.ajax({
    url: 'https://siteUrl/_api/web/GetFolderByServerRelativeUrl(\'/AssetLibName/VideoName\')/files',
    method: "GET",
    headers: { "Accept": "application/json; odata=verbose" },
    success : function(data){ //data will have the video object
        var name = data.d.results[0].Name;
        console.log(title); 
    },
    error : function(args) {
        console.log(args);
    }
});

Note: Server Relative URL will change based on where the video is stored i.e. location of site collection / subsite.