Check for touch support
You can use this to check if the current User Agent supports touch.
For a more thorough check, look at the Modernizr implementation.
var hasTouch=!!('ontouchstart' in window);Written by Francisc Romano
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2 Responses
expression
'ontouchstart' in windowwill return boolean value and it's not required to create boolean manualy (using!!)expression window.hasOwnProperty('ontouchstart') is faster :)
over 1 year ago
·
And window['prop'] even faster, but those two yield false.
The double negation is for clarity that it's a boolean.
Thanks for the comment.
over 1 year ago
·
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