assert()
Environment
assert() is a MATLAB®-compatible environment function for assert that a condition is true. throws an error if false. Run it online in your browser with SimLab — free, no install, no license required.
Assert that a condition is true. Throws an error if false.
Syntax
assert(condition)
assert(condition, msg)
Examples — run assert() in your browser
x = 5; assert(x > 0, 'x must be positive')▶ Run
See Also
Frequently Asked Questions about assert()
Is the assert() function free to use in SimLab?
Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run assert() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.
Do I need to install MATLAB to use assert()?
No. SimLab runs entirely in your web browser with zero installation. The assert() function works without any MATLAB® license or software download.
What does assert() do?
Assert that a condition is true. Throws an error if false. It is a MATLAB®-compatible environment function available in SimLab with the same calling syntax as MATLAB® — typically: assert(condition).
Can I run assert() in my browser?
Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls assert(), and run it. Execution happens locally in your browser — no data leaves your machine.
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510+ functions. Runs in your browser. No install. No license.
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