Change value with Val()
HTML
<button id="b1">
PRasad
</button>
<input type="text" id="t1">
JavaScript
$("document").ready(function() {
$("#b1").click(function() {
$("#t1").prop("value","prasad");
});
});
<button id="b1">
PRasad
</button>
<input type="text" id="t1">
$("document").ready(function() {
$("#b1").click(function() {
$("#t1").prop("value","prasad");
});
});