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Asked: 2026-05-11T11:09:53+00:00

I have the following dojo codes to create a surface graphics element under a

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I have the following dojo codes to create a surface graphics element under a div:

.... <script type=text/javascript> ....    function drawRec(){       var node = dojo.byId('surface');       //   remove all the children graphics       var surface = dojox.gfx.createSurface(node, 600, 600);        surface.createLine({          x1 : 0,          y1 : 0,          x2 : 600,          y2 : 600       }).setStroke('black');    } .... </script> .... <body> <div id='surface'></div> ....

drawRec() will draw a rectangle graphics first time. If I call this function again in an anchor href like this:

 <a href='javascript:drawRec();'>...</a>

it will draw another graphics again. What I need to clean all the graphics under the div and then create again. How can I add some dojo codes to do that?

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1 Answer

  1. while (node.hasChildNodes()) {     node.removeChild(node.lastChild); }
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