OverconstrainedError.constraint

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The constraint read-only property of the OverconstrainedError interface returns the constraint that was supplied in the constructor, meaning the contraint that was not satisfied.

Syntax

var constraint = Overconstrainederror.constraint;

Value

A String

Specifications

Specification Status Comment
Media Capture and Streams
The definition of 'constraint' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
constraint
Experimental
Chrome Full support 63Edge ? Firefox ? IE ? Opera Full support 50Safari ? WebView Android Full support 63Chrome Android Full support 63Firefox Android ? Opera Android Full support 46Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.