javascript - PUT, DELETE and CRUD
<p>I was just having a look under the hood in the new sound cloud and noticed a few thing I hadn't heard of before. I noticed there are PUT and DELETE requests sent when liking a track etc. Now, I know that you can now use SQL directly in JavaScript so I thought they would be used to access the database but I couldn't see much information sent off so I researched it a bit. However, I couldn't find much information since I understand these requests are rarely used since its insecure and the client is not guaranteed that the procedure has been carried out. </p>

<p>Can anyone provide some insight into PUT and DELETE and why you would use them over the usual POST and GET requests with JSON or a PHP file?</p>
