Main » TERM » J »

JavaScript FileReader Definition & Meaning

JavaScript FileReader is an object that reads data from BLOBs and files on the client side. Using JavaScript FileReader lets users read files from their own computer system using a web browser (that is, the client) instead of using the server. Software developers use JavaScript FileReader to reduce the processing burden on servers. This helps prevent websites or applications from running slowly.

Developers can specify the file format JavaScript FileReader will read, and they can set rules for how FileReader interprets the data stored in a file. For example, if you’re coding a résumé upload tool for a company website, you can use JavaScript FileReader to generate an image preview of an applicant’s résumé before they confirm that they want to upload it to the company’s servers.

Another use case for Javascript FileReader is to parse data from a plain text file, like a comma-separated values (CSV) file. This is useful for preparing to upload large amounts of data to a database.

Texting & Chat Abbreviations

From A3 to ZZZ we list 1,559 text message and online chat abbreviations to help you translate and understand today's texting lingo. Includes Top... Read More »

Huge List of Computer Certifications

Have you heard about a computer certification program but can't figure out if it's right for you? Use this handy list to help you decide. Read More »

Computer Architecture Study Guide

Computer architecture provides an introduction to system design basics for most computer science students. Read More »

Network Fundamentals Study Guide

Networking fundamentals teaches the building blocks of modern network design. Learn different types of networks, concepts, architecture and... Read More »

The Five Generations of Computers

Learn about each of the five generations of computers and major technology developments that have led to the computing devices that we use... Read More »