Check exist file javascript

Many thanks for taking the time to reply, and my reason for posting this solution was for others following this thread in search of an answer. I'm frankly puzzled by those who, as in this thread, contribute the 'it can't be done' line, as this appears to be of zero value. So the error event isn't triggered until you append the element to the document? One could append it "out of sight", I suppose, but it would be even better not having to append it at all, if that's possible. Jess Stone Jess Stone 8 8 silver badges 20 20 bronze badges.

How can you use this for checking existence of a file? Then test the value of x: x? Unfortunately, I tried this on my system and it fails after the line: http. In both cases, the "failure" is that it doesn't return from the call to LinkCheck. Thank you for replying Kevin — Chetan Purohit. In the open statement shown above, false indicates "synchronous" operation. I just ran across this: Note: Starting with Gecko Javascript is not the task for this.

Kranu Kranu 2, 15 15 silver badges 22 22 bronze badges. John Manak John Manak Dij 9, 4 4 gold badges 16 16 silver badges 34 34 bronze badges. Andrey Andrey 5, 4 4 gold badges 22 22 silver badges 28 28 bronze badges. Samsky Samsky 5 5 silver badges 11 11 bronze badges. I just tried this approch. The error handler is called when loading non-image-types. So its not possible to determine if the file exists or not!

JavaScript will never be disabled. Check the getFile method reference documentation. And the exists method reference documentation. In this case you can use an ajax request try and get the file and react upon the received answer. Although, be aware that you can only check for files that are exposed by your web server. A better approach would be to write a server-side script e. In this case, as pointed you by others, it is not allowed for security reasons although IE allowed this in the past via ActiveX and the Scripting.

Starting in version Then, you can use the require 'fs'. You may also use the synchronous method Fs existsSync to check whether a file exists on your hard disk. Please notice that this method blocks the Node. Get your weekly push notification about new and trending Future Studio content and recent platform enhancements. Marcus is a fullstack JS developer. Tutorials Node.

This tutorial shows you how to use Node. Increase the Memory Limit for Your Process. Prev Next. Coming soon. Filter Data in Streams. Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. Given an HTML document containing input element and the task is to check whether an input element is empty or not with the help of JavaScript.

Approach 1: Use element. If element. Example: This example implements the above approach. How to check input file is empty.