javascript can't pass string to my function -

i calling function parameter date string "24/08/2017" , function

function openedit(dateid){     alert(dateid);     } 

and it's return 0.00013882002974714924. function call like

<button onclick="openedit(datestring)"></button> 

use if using server side technology

<button onclick="openedit(\''+datestring+'\')"></button>  

or

<button onclick="openedit('<yourdate>')"></button> 

you need add quotes around datestring

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