fieldnames()
Data Types
fieldnames() is a MATLAB®-compatible data types function for list field names of a struct. Run it online in your browser with SimLab — free, no install, no license required.
List field names of a struct.
Syntax
fieldnames(s)
Examples — run fieldnames() in your browser
s = struct('x', 1, 'y', 2); fieldnames(s)▶ RunSee Also
Frequently Asked Questions about fieldnames()
Is the fieldnames() function free to use in SimLab?
The browser workspace requires no MATLAB® license or installation. Connected features require network access and may have account, tier, availability, or usage limits. You can open fieldnames() and 510+ other MATLAB®-compatible function references at simulations4all.com/simlab.
Do I need to install MATLAB to use fieldnames()?
No. SimLab’s core parser, workspace state, and most functions run locally in your browser. The fieldnames() function requires no MATLAB® license or desktop software download.
What does fieldnames() do?
List field names of a struct. It is a MATLAB®-compatible data types function available in SimLab with the same calling syntax as MATLAB® — typically: fieldnames(s).
Can I run fieldnames() in my browser?
Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls fieldnames(), and run it. This function’s calculation runs locally in the browser. SimLab session analytics, sharing, feedback, and eligible acceleration have separate network boundaries.
Try SimLab — MATLAB®-compatible, free, in your browser
510+ functions. Runs in your browser. No install. No license.
Open SimLabMATLAB® is a registered trademark of The MathWorks, Inc. SimLab is an independent project by Simulations4All and is not affiliated with, endorsed by, or sponsored by The MathWorks, Inc.