html - Change a div with Javascript -


i need small script loaded when website loaded, , modify had not define "date-mode", , place = "date-mode=none", somting this:

<body>   <div date-mode="page"></div>   <div></div>   <div id="select"></div> </body>

and result is:

<body>    <div date-mode="page"></div>    <div date-mode="none"></div>    <div id="select" date-mode="none"></div> </body>

someone can me? thank you!

try out.

window.onload = function () {     var divs = document.body.getelementsbytagname('div'), div, i;     (i = 0; < divs.length; += 1) {         div = divs[i];         if ( !div.getattribute('date-mode') ) {             div.setattribute('date-mode', 'none');         }     } };

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