jquery,css,svg , my svg polygons fills are not changing color on hover


my svg polygons fills are not changing color on hover

Question:

Tag: jquery,css,svg

I have some svg polygons. When you mouse over a polygon, I want to find part of the polygon's id, then change the fill color of all polygons that have that part of the polygon id in their id. But it isn't working. No polygon fill is changing. Anyone know what I'm doing wrong, please?

example polygons:

 <polygon id="sandiego0528loss10" fill="#FFFFFF" points="401.821,418.967 392.331,409.824 397.398,404.561 406.871,414.021        "/>
 <polygon id="sandiego0528loss9" fill="#FFFFFF" points="391.122,398.292 386.347,403.142 392.317,409.632 397.398,404.561         "/>

jquery

 $( "polygon" ).hover(
      function() {
        if (this.id.length > 0){
            var test = this.id.match(/\d{4}/); //see what the date is
            if (test !== null ) {
                //first part of test will be the date                   
                var thisDate = test[0]; 
                var matchIndex = test["index"];
                var thisRow = this.id.substring(0, matchIndex+4);
                //get all polygons with this prefix and color them

                $('polygon[id^=thisRow]').attr('fill', '#ccc');
            }

        }
      }, function() {

      }
    );

Answer:

Change

$('polygon[id^=thisRow]').attr('fill', '#ccc');

to

$('polygon[id^=' + thisRow + ']').attr('fill', '#ccc');

Your current line searches for elements whose IDs begin with the string "thisRow". You need to search for IDs beginning with the value of the variable thisRow.

Here's an example fiddle with only that line of JS changed (I slightly altered the HTML for ease of visibility).


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