You can Use Date() function of javascript.
var dt = '10/14/2015';
var a = new Date(dt);
alert(a);
you can get the date culture specific
var dt = '10/14/2015';
var a = new Date(dt).toLocaleDateString("en-US");
alert(a);
this will give date format in en-US culture.
Format Date in Javascript[
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you can refer the link for detail how you can use date format in javascript
Javascript Date
Valid Javascript Date Format[
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