Comments: Determine whether the browser supports canvas. I have collected and sorted out some usage methods. If you are interested, you can check whether the browser supports canvas. The specific code is as follows:
The Code is as follows:
<! DOCTYPE html>
<Head>
<Meta charset = UTF-8/>
<Title> canvas </title>
<Script type = 'text/javascript '>
Window. onload = function (){
/** Determine whether the browser supports canvas **/
Try {
Document. createElement ('canvas '). getContext ('2d ');
Var addDiv = document. createElement ('div ');
AddDiv. innerHTML = 'canvas supported ';
Document. body. appendChild (addDiv );
} Catch (e ){
Var addDiv = document. createElement ('div ');
AddDiv. innerHTML = 'canvas not supported by the browser ';
Document. body. appendChild (addDiv );
}
};
</Script>
</Head>
<Body>
</Body>
</Html>
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