JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" name="filePath" id="filePathLoc"/>

JavaScript

$('#filePathLoc').blur(function() {
    var filePath = $(this).val();
    var pattern = /^([a-z]:)(\\[A-Za-z_\-\s0-9\.]+)+$/;; 
		if (pattern.test(filePath))
		{
		   alert("validate");
        }else{
            alert("not validate");
        }
   
});