The object does not support the property or method "closest"

Question

I just got information that my jQuery function does not work on either IE or Edge. In the console, I have a message:

The object does not support the property or method "closest"

This is jQuery:

$('body').on('change', 'select', function (event) {
    if(event.target.id.indexOf("couche") >= 0) {
        $.ajax({
            url: "{{ redir2 }}",
            type: "POST",
            data: {
                ident: event.target.id,
                value: event.target.value,
                iscouche: "True"
            },
        }).done(function (msg) {
            if(msg.nothing == 1) {
                var what = event.target.closest('tbody');
                $(what).find("tr:gt(0)").remove();
            } else {
                var add = event.target.closest('tr');
                var toremove = msg.toremove.split(" ");
                for(var i = 0; i < toremove.length; i++) {
                    if(toremove[i].length > 0) {
                        jQuery(toremove[i]).remove();
                    }
                }
                jQuery(add).after(msg.ret);
            }
        });

    } else {
        $.ajax({
            url: "{{ redir2 }}",
            type: "POST",
            data: {
                ident: event.target.id,
                value: event.target.value,
                iscouche: "False"
            },
        }).done(function (msg) {});
    }
});

Can someone tell me if there is a fix for this?

Answer 1

event.target is a DOM node, not a jQuery object, so it does not have jQuery methods

In jQuery, use $(this)which is the jQuery object instead .

I also suggest that you don’t use the target unless you need to.

: DOM, , OPs , IE.

jQuery:

$('body').on('change', 'select', function(event) {
  var $sel = $(this),    // the changed select
    id = this.id,        // or $(this).attr("id"); 
    val = $(this).val(); // or this.value
  if (id.indexOf("couche") >= 0) {
    $.ajax({
      url: "{{ redir2 }}",
      type: "POST",
      data: {
        ident: id,
        value: val,
        iscouche: "True"
      },
    }).done(function(msg) {
      if (msg.nothing == 1) {
        var what = $sel.closest('tbody')
        $(what).find("tr:gt(0)").remove();
      } else {
        var add = $sel.closest('tr');
        var toremove = msg.toremove.split(" ")
        for (var i = 0; i < toremove.length; i++) {
          if (toremove[i].length > 0) {
            jQuery(toremove[i]).remove();
          }
        }
        jQuery(add).after(msg.ret);
      }
    });

  } else {
    $.ajax({
      url: "{{ redir2 }}",
      type: "POST",
      data: {
        ident: id,
        value: val;,
        iscouche: "False"
      },
    }).done(function(msg) {});
  }
});

:

$('body').on('change', 'select', function(event) {
  var $sel = $(this), // the select changed
    val = this.value,
    id = this.id,
    isCouche = id.indexOf("couche") != -1;
  $.ajax({
    url: "{{ redir2 }}",
    type: "POST",
    data: {
      ident: id,
      value: val,
      iscouche: isCouche ? "True" : "False";
    },
  }).done(function(msg) {
    if (isCouche) {
      if (msg.nothing == 1) {
        var what = $sel.closest('tbody')
        $(what).find("tr:gt(0)").remove();
      } else {
        var add = $sel.closest('tr');
        var toremove = msg.toremove.split(" ")
        for (var i = 0; i < toremove.length; i++) {
          if (toremove[i].length > 0) {
            $(toremove[i]).remove();
          }
        }
        $(add).after(msg.ret);
      }
    } else {
      // handle not couche
    }
  });
});

Answer 2

closest() jQuery, JavaScript.

event.target - DOM, , jQuery, jQuery.

var what = event.target.closest('tbody')

var what = $(event.target).closest('tbody')

Answer 3

Yuo should paste it in $()since event.targetit is not a jQuery element

   $(event.target).closest('tr')