javascript - Can I create my own event attributes? -


can create own attributes on html elements treated javascript code, , able executed when code desires?

for example, want create custom event onpagerefresh, , @ same time, allow person writes html add attributes handle event.

<body onpagerefresh="updatecontents()">

i able parse html value of new onpagerefresh attribute, how tell javascript treat in attribute javascript code rather string?

you can use new function(), function constructor, function object string , assign attribute of object. ex:

var divelement = document.getelementbyid('mydiv'); divelement.onpagerefresh = new function("èvent", "alert();");

whether that's better eval() in meaningful way debatable (though give distinct scope), how it. possibly better option in case allow person implementing html use preexisting function name (onpagerefresh="updatecontents") , execute 1 e.g. window["updatecontents"](). way don't let old dom insertion write random javascript code. of course limits functionality.


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