Jquery each controls the display or hiding of checkbox-related content (table tr) (jquery hides the output content according to conditions)

If you do not select any option, the content of all countries is displayed. If you select one option, the content of each country can be added. Uncheck this option to hide the corresponding content; "Others" indicates all countries not in the selected list. 1. jquery function check () {var country = ""; $ ("[name = 'checkbox']"). each (function () {if ($ (this ). attr ("checked") {country + = $ (this ). val () ;}}); $ ("# tableID tr "). each (function () {$ (this ). show (); if (country! = "" & Country. indexOf ("other") <0) {if (country. indexOf ($ ("td: eq (1)", this).html ()> = 0) {} else {$ (this ). hide () ;}} else if (country = "") {$ (this ). show ();} else {if (country. indexOf ($ ("td: eq (1)", this).html ()> = 0) {$ (this ). show ();} else if ($ ("td: eq (1)", this).html ()! = "Us" & $ ("td: eq (1)", this example .html ()! = "UK" & $ ("td: eq (1)", this).html ()! = "France" & $ ("td: eq (1)", this example .html ()! = "Germany" & $ ("td: eq (1)", this).html ()! = "Region" & $ ("td: eq (1)", this).html ()! = "Japan" & $ ("td: eq (1)", this).html ()! = "Switzerland" & $ ("td: eq (1)", this example .html ()! = "Australia" & $ ("td: eq (1)", this).html ()! = "Canada" & $ ("td: eq (1)", this).html ()! = "China") {$ (this ). show ();} else {$ (this ). hide () ;}}); $ ("# tableID tr: eq (0 )"). show () ;}2. asp page <div class = "CurBlock">