求助一个js问题 完整js如下 $(document).ready(functi - Assbbs
求助一个js问题 完整js如下 $ document .ready function { $ " menu-icon, menu-icon-tablet" .click function { if $ & 39; menu& 39;…
求助一个js问题 完整js如下 $ document .ready function { $ " menu-icon, menu-icon-tablet" .click function { if $ & 39; menu& 39; .css & 39;visibility& 39; == & 39;hidden& 39; { $ & 39; menu& 39; .css & 39;visibility& 39;,& 39;visible& 39; ; $ & 39; menu-icon, menu-icon-tablet& 39; .addClass & 39;active& 39; ; var topDistance = $ " menu > nav" .offset .top; if $ & 39; menu& 39; .css & 39;visibility& 39; != & 39;hidden& 39; && topDistance < 50 { $ " menu > nav" .show ; } else if $ & 39; menu& 39; .css & 39;visibility& 39; != & 39;hidden& 39; && topDistance > 100 { $ " menu > nav" .hide ; } return false; } else { $ & 39; menu& 39; .css & 39;visibility& 39;,& 39;hidden& 39; ; $ & 39; menu-icon, menu-icon-tablet& 39; .removeClass & 39;active& 39; ; return false; } } ; / Toggle between adding and removing the "responsive" class to topnav when the user clicks on the icon / $ " header > nav > ul > .icon" .click function { $ " header > nav > ul" .toggleClass "responsive" ; } ; if $ " menu" .length { $ window .on & 39;scroll& 39;, function { var topDistance = $ " menu > nav" .offset .top; if $ & 39; menu& 39; .css & 39;visibility& 39; != & 39;hidden& 39; && topDistance < 50 { $ " menu > nav" .show ; } else if $ & 39; menu& 39; .css & 39;visibility& 39; != & 39;hidden& 39; && topDistance > 100 { $ " menu > nav" .hide ; } &…