jQuery的。 如何等于.text（）.val（）

Question

I need to equal two value, but it's not work..

var rowID = $("#@idSelectObjectGuid").val();

$($(".ls-grid-body tr").children(".@vcTable.PrimaryKey")).each(function () {

   alert($(this).text() + " == " + rowID);

   if ($(this).text() == rowID) {

       $(".ls-grid-body tr").removeClass("lst-state-selected");
       $(this).addClass("lst-state-selected");

   }
});

alert result:

df5ebd84-14a1-4e57-9f38-32d4e84e1503 - 41 == df5ebd84-14a1-4e57-9f38-32d4e84e1503 - 36

Why first lenght is 41 and why they not equal...

How to do it?

Answer 1

try this : use .trim() as there could be a space before / after the text

var rowID = $("#@idSelectObjectGuid").val().trim();

$($(".ls-grid-body tr").children(".@vcTable.PrimaryKey")).each(function () {

   alert($(this).text() + " == " + rowID);

   if ($(this).text().trim() == rowID) {

       $(".ls-grid-body tr").removeClass("lst-state-selected");
       $(this).addClass("lst-state-selected");

   }
});

Answer 2

This is the sort of thing that filter is good for:

$(".ls-grid-body tr").children(".@vcTable.PrimaryKey").filter(function () {
   return $.trim($(this).text()) == rowID;
}).addClass("lst-state-selected");

Notes:

• string.trim() is not available on all browsers, so use $.trim() instead
• You seem to have a redundant $() wrapper.
• You seem to have a mismatch between the elements you removeClass and addClass to (tr vs tds).