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?
Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run fieldnames() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.
Do I need to install MATLAB to use fieldnames()?
No. SimLab runs entirely in your web browser with zero installation. The fieldnames() function works without any MATLAB® license or 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. Execution happens locally in your browser — no data leaves your machine.
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