javascript variables - html5 canvas issue -


in following code, change html canvas 5 font passing string. in second case use array , variables. first case works. second case not change fonts. problem in way construct variable.

<!doctype html> <html>      <body>         <canvas id="mycanvas" width="800" height="600"></canvas>      <script>      // array of fonts     var fontarray = new array();         fontarray.push("antiqua");                 fontarray.push("arial");       fontarray.push("comic sans");          var canvas = document.getelementbyid('mycanvas');     var context = canvas.getcontext('2d');      // works     context.font  = "25pt arial";        context.filltext('this works ', 30, 30);                 context.font  = "25pt monospace";        context.filltext('this works ', 30, 80);                   // works shows no varaition of font     for(x=0;x<3;x++){         var fonttext = "\'" + "20pt " + fontarray[x] + "\'" ;                    context.font  = fonttext;         console.log(fonttext);   // print console         context.filltext('this works shows no variation of font', 120, 140+(x*50));                  }       </script>

what if change:

var fonttext = "\'" + "20pt " + fontarray[x] + "\'" ;

to

var fonttext = "20pt " + fontarray[x];


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