I have a page where users can upload images, i need a simple regular expression to validate that there is only one period character "." in the filename i.e. "Image.jpg" and not "Image.jpg.jpg" All other characters are allowed.
Over time, the online landscape has altered considerably, but that’s nothing compared to the up-and-coming trends that will shape the web design industry in the coming year. Keep reading to find out which trends will shape B2B web design in 2018.