fn.invisible = function() { return this.css('visibility', ... ... <看更多>

Basic visibility check ... This basic check will return true if the entire element is visible to the user (within the visual viewport). $('#element').visible();. ... <看更多>

JavaScript : Equivalent of jQuery .hide() to set visibility : hidden [ Gift : Animated Search Engine : https://bit.ly/AnimSearch ] JavaScript ... ... <看更多>