Feature detection (web development): Difference between revisions

Revision as of 01:55, 27 August 2022

Latest revision as of 18:11, 27 September 2023

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==Techniques==

A feature test can take many forms. It is essentially ''any'' snippet of code which gives some level of confidence that a required feature is indeed supported. However, in contrast to other techniques, feature detection usually focuses on performing actions which directly relate to the feature to be detected, rather than [[heuristics]].<ref>{{Cite web |title=Implementing feature detection |url=https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Feature_detection |url-status=live |access-date=23 August 2022 |website=mdn web docs}}</ref>

As [[JavaScript]] is the most prevalent [[scripting language]] in web browsers{{Citation needed|date=March 2014}}, many feature detection techniques use JavaScript to inspect the [[Document Object Model|DOM]] and local JavaScript environment.